Download - BSI 5352-1981
-
8/9/2019 BSI 5352-1981
1/32
OPYRIGHF L W
Erdiilchemie-und verwandte lndustrien
NO COPYING WITHOUT BSI PERMISSION EXCEPT S PERMITTED BY
Erd61-,tir die
ftir
Stahlkeil-Absperr-,
Durchgangs- und Regulierventile 50 mm und
kleiner,
associ6es
Spezifikation
p&rochimiques
et industries
acier
de 50 mm
ou moins pour les industries du p&role,
sphdriques
et de retenue encoin,
p6cification
pour les vannes
NOVEMf3ER
1983
Specification for
Steel wedge gate globe and check valves
50 mm and smaller for the petroleum
petrochemical and allied industries
CONFlRMED
6815.8.026.840.03
:
BS5352: 98
UDC 62
-
8/9/2019 BSI 5352-1981
2/32
15
16
17
12
13
14
10
18
19
11
18
t
of 4.8 mm to 22 mm inclusive
3
3
3
4
4
Fieunr
1. Typical wedge gate valve (outside screw)
2. Typical wedge gate valve (inside screw)
3. Typical globe valve (outside screw)
4. Typical globe valve (inside screw)
5. Typical vertical ball check valve
6. Typical piston/ball check valve
7. Typical bellows seal wedge gate valve
8. Weld-end for connection to pipe of wall
thickness
Dirrwnioruofbutt-m d
with8S21
15.
vekesw i thpersW t fm sds~-
14.r '--------: ~d~~hJr
13.G '
NominaIpreeaure,clneratfn9andmmin8f
2.
Vehmtfimmeteriel
11s.
diln5mion
nd stuffing boll
trevel
Minimum stem diameter for wedge gate valves
Minimum stem diameter for globe valves
Packing
19
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Pressure/temperature ratings for class 800
screwed and socket-weld end valves
Pressure/temperature retings for bellows
seal valves
End type availability according to class and
size of valve
Minimum body and bonnet well thickness
(excluding pipe ends)
Minimum port diameter and seat bore
Minimum outside diameter or dimension
across flats of body ends
Minimum wear
Page
10
11
18
18
19
Tables
8s2 1
C. Type test for bellows used in bellows seal
gate or globe valves
D. Details of butt-weld ends
rnaccordance with
Applrcation
to piping systems with screw
threads
:Part 1
8.
8s
4504
Prepsrstion
for despstch
44. Oespatch preparation
Appendices
A. Application to piping systems with flanges
in accordance with
Section
six.
Body
markings
40. Identification plate marking
4 1 . Additional markings
42. Omission of markings
Body
and bonnet/cover gasket
Wedge, disk, piston or ball
Yoke
Handwheel
Handwheel and yoke bush/sleeve retaining nut
8
Yoke bush or sleeve
8
Gland
8
Bellows
8
Trim
8
Stem packing
8
Bolting
10
Nameplate
10
Special applications
10
2
2
2
2
2
3
3
4
4
5
5
5
5
5
6
6
6
7
7
7
7
7
Section four. Marking
38. General
39.
Body seat and bod y seat ring
20. Handwheel
21. Bellows seal
22.
Check valves
Section three. Materials
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
Shell
Body seat ring
Dosign
9.
Shell
10. Backseat face
11.
Bolting
12.
Direction of flow
13.
Nameplate
14. Wedge
15.
Disk and disk nut
16.
Stem
17. Stuffing box
18.
Yoke, yoke sleeve and yoke bush
19.
lnformetton to be supplied by the purchaser
Section two.
5. Pressure/temperature
rating5
6. Nominal sizes
7.
End types
8.
classthcation
Defindion
4.
Pressure
Gonor*)
1.
scope
2. References
3.
one
Covrnl
Section
Back
PWP
organrzattons
Specification
BSS352: 1981
Contents
Foreword
Cooperating
-
8/9/2019 BSI 5352-1981
3/32
8901- O .
requ ired.etween
seat surfaces is not
tsble
i nse rt
new no te 5,
NOTE 6 . Aifferential hardness
-- IA t t he f oo t o f t he
350 .
su rf = 66-26-5, C r- Co - W i nsert
(sea note 6)
nder t he va l ue
reststerisl HF ndgs i nrt
tri mI n
co l u m n 4 ,
w 5
Tab l e 11 . Va l ve tri m m a t e ri a l
J M u *ry
A M 05515
_____ _
m 5teri5ltaffected).
r tlr n dsr d(see tab l e 11 for the
b5o f t he
m anu facturers
13 / CR13 sha llurfac5so t her than CR
c l auwand subs tit u te the follo w i ng :
33 . 10 iff erential hardness bet ween m ating seating
De l ete the ex i sting
S68
C l a use33 . 10
Jmuuy
5815w lI
_
sppropr irtem i n i m u m hardness
i s g i ven i nable 11.
tri m e ,t het her
b )
f or
HE ;
f ~1 -169
rlves, o f no t l essr lfcheck
c5se
o fhss lv55 ,and be t ween body sea t and M l,n
body5ndw5dg5555 t whc55 i n t h5css5o f w 5dg5g5 t 5
m s tin g
srdnen be t weenif f erenai n
hsrdnsa o f 250 HB
m i n i m u m w it h
sy m bo l
CR 13 .5
5)
f or tri m w it h
h5ve:hrllurf5ees
IIt
33 . 6
thef o ll ow i ng
ku w
and subs tit u texistingDe lete thr
c l a use33 .6
t s ( Dnu r y
6816
MD
me _
___ ___________ _
t8xt
8v l wd
i ndus trl as
lli od
nda tr od w nke l
o tr oku m ,
t he
o rm rllr
Omm ndl va
hack
andl o i mn t e ,mdg~t m o lpoc ifi a m ti onf o r
t o035352 : 1 @ 81
1969
anuary
ff oc tl wfr o m 31ubMuJ
d
Amondnwn tNo . 1
I
I
-
8/9/2019 BSI 5352-1981
4/32
-
8/9/2019 BSI 5352-1981
5/32
Ps rt1 and
table 11 a of this standard.
:
espatch i n accordance w it h BS 6755be f o re
k
De l e t e t he ex i s ti ng c l ause and subs tit u t e t he f o ll ow i ng .
43 . P r oduc t p r essu r ees ti ng
A ll va l ves sha ll be pressure t es t ed by t he m anu f ac t u rer
lee0
C l ause 43 . I nspec ti on and p ressure test i ng
A -t
6660
M 0
*
De l e t e t he titl e and subs tit u t e
Sec ti on fi ve . Tes ti ng .
Augu *l es O
Sec ti on fi ve .nspec ti on and t es t
650
M 0
. ______________
431.
is
requ ir ed f o r
check va l ves ( see c l ause
( n )W he t her a lowe r sea t test leakage rate
( n )and subs tit u t e t he f o ll ow i ng .D e l ete the existing ite m
1500
pu rchaser
u5ua t
8 .I n f o r m a ti on t o be supp li ed by t he
e0
C l a use
MD
r nqu iryor order.
i8
u rcharrri n
t he
trtr d
by
a
noww it hd ra wn ) shou l d074
an
1148
:I S
rp5cifiod
i nrevlourlyr geso f m r n u frcturr
ll
r upp l e mm trry
i nspect i on a t
and
nrpoction
i n51
equ irr m en ts
f o r
\rA fter paragraph 4
nser t t he f o l l ow i ng no t e .
NOTE .
:Pa rt 1 .8s67558s5148 nd subs tit u t eI n paragraph 4 , li ne 4 , de l e t e
oo0
Fo re wo r d
Au5us t
0650M 0
_
ab le d e le te d
J
De l ete the entry for table 13 and subst it u te t he f o ll ow i ng .
13 .
1 l a . Requ ir ed produc ti on p ressure tests
Y Unde r t he head i ng Tab l es , after t he en tryo r t ab l e 11 i nser t t he f o l l o w i ng .
p ressurrt es ti ng
fi ve .Tes ti n g
43 . P r oduc t
Bec tl on
c l5uu43 and subs tit u t e
the
f o l l ow i ng .
t hse n tries f o r section five an d
i
D e l ete
5u ll- e
Con t en t s
W
M 0
l ndus trl o rlli edo tr ouhe m l o rlr nd
po tr o l ou m .he
m rllrr
f o rnd 0mm
r l vrrhouk
g l ob .andwo ,m t o lt m o lpoa lti w ti onf o r
t oBs6352 : 1981
1990
ff oc tl va
fr o m 31 Augus tnd
ub li dwd
Amm d m en tNo . 2
fdl
-
8/9/2019 BSI 5352-1981
6/32
-
8/9/2019 BSI 5352-1981
7/32
-
8/9/2019 BSI 5352-1981
8/32
-
8/9/2019 BSI 5352-1981
9/32
.-...--
facilities described on the inside back cover.
certrfrcetionerMcerion. Attention is drawn to the
for data used.
lnstnuteInstitute and to the American National Standards
Acknowledgement is made to the American Petroleum
for low temperatures.
for use in highly corrosive services and environm ents, or
valves of material composition outside the scope of
section three of this standard are required as, for example
guide
where
and appendix B respectively.
This standard can also be used as a general
n
accordance with BS 2 1 attention is drawn to appendix A
:
Part 1 or screw-threadsin accordance with BS 4504
1660:Part2.
Where valves are for use in piping systems using flanges
BS
hngedends,with flanges in accordance with
d)
s3600;L.BS 1600 orwith API Standard
burr-we/den&, with plain end pipe in accordance
cl
St_
BS 1600 or BS 3600;
socket-weldends, with plain end pipe in accordance
with API Standard
(b)
In
accordance with API Standard SB or ANSI 82.1;
screw&ends,with pipes or fittings threaded
followe:
(a)
inrrtallation
as
pnmanly Intended for
his
standard are
pecified
inalvsa
602.
grven
to the Iatast
edition of API Standard
ir the Intention that valves complying with the
requirements of this standard shall be interchangeable as
units with those of similar type produced by American
manufacturers. In the preparation of this standard.
consideration has therefore been
:
1981
It
8s
3600 and BS 1600.
BS 535
8s3808 dealing with
dimensional sizes and tolerances of screwed and
socket-weld end details have been omitted and cross
references made to the appropriate sections of the new
metric version of BS 3799. which in turn has been
modified for bore dimensions of sockets to allow use of
pipe in accordance with
odor.
Similarly, sections in BS 2995 and
enauity
or
i8
utchmer in
the
v
tatad
hould
ithdrawn1
now
9M
an
1 :5 5146 :
spOef(kd intovtwJyanulmureren oflltnstrocuon
suuppkrttantarynsputbn andmuirrmonufor final
Pa n 1.
NOTE.
:
2996and BS 3808 dealing
with tests and inspection have not been included in this
standard, as these are now the subject of a separate
standard, BS 6755
1670.
The previous sections in BS
2996and BS 3808 are withdrawn on publication of
this standard. Amendments to BS 14 14. BS 1888 and
BS 1873 will delete references to size 40 mm and
smaller. BS 2080 will be amended.
The plug valves previously covered in BS 2995 will be
included in the new metric version of BS
seal valves have
been included.
BS
8s3808, BS 14 14,
BS 1868 and BS 1873. Apart from metrication, The
valves are basically the same. but the list of shell and trim
materials has been extended and bellows
elro classes 1 SO, 300.800 and
1600 flanged and butt-weld end wedge gate. globe and
check valves previously covered by
1600
screwed and socket-weld end
wedge gate, globe and check valves previously covered by
BS 2995 and BS 3808.
:
1964. This new metric standard covers
classes BOO and
3808
:1966
and BS
2996
evirron
of BS
her been prepared under the
direction of the Mechanical Engineering Standards
Committee and constitutes a
Foreword
This Britirh Standard
-
8/9/2019 BSI 5352-1981
10/32
(b)inside screw globe and screw down check valves.
5.3 Bellows seal valves. The pressure/temperature
ratings for bellows seal valves shall be in accordance with
table 2, and are a minimum requirement for valves
complying with the requirements of this standard and
having a body rating in excess of the values specified in
table 2; for valves with a lower body ratinQ,the values
specified in table 2 shall still apply.
AZ .
52 Inside screw
valves.
The following types of valve
shall not be used at service temperatures exceeding
42 5 C:
(a) inside screw wedge gate valves;
:
Part 1 see
8s3351. Service temperature
refers to the temperature of the fluid in the line at the valve.
NOTE 5. For pressure/temperature ratings for valves supplied for
use in piping systems with flanges in accordance with BS 4504
-30 C,
reference should be made to
6.2).
NOTE 3. Valves with a bellows seal may be subject to reduced
pressure/temperature ratings compared with standard valves
(see 5.3).
NOTE 4. Where valves complying with the requirements of this
standard are to be used at service temperatures below
:
Part 2 : 1970 for the particular shell material except that
class BOO valves shall be in accordance with table 1.
NOTE 1. There is, however, a temperature restriction on certain
trim materials (see 33.4 and table 1 1).
NOTE 2. Inside screw valves are subject to a service temperature
restriction (see
Ibf/in2.
5.
Pressure/temperature ratings
6.1 General.
The pressure/temperature ratings
applicable to valves covered by this standard shall be in
accordance with tables PE- 1 to PE-12 of BS 1560
:
150; 300; 600; BOO; 1500.
NOTE. The number in these class ratings represents the primary
service pressure rating of the valve in
IInumber.
4. Pressure classification
This standard applies to valves of the following class
ratings
ONfollowed by
(DN).A num erical designation of size
common to all components in a piping system other than
those designated by outside diameter or by thread size. It
is a convenient round number for reference purposes and
is normally only loosely related to manufacturing
dimensions.
NOTE. It isdesigneted by the letters
(3) ball type (for vertical flow).
NOTE. The
terms vertical, horizontal and angle relate to the
axis of the body ends.
2
2.
References
The titles of the standards publications referred to in this
standard are listed on page 20.
3. Definition
For the purposes of this British Standard the following
definition applies.
nominal size
(2) ball type (for angle or horizontal flow);
1)
piston type (for angle or horizontal flow);
(f)Che ck va l ve s , with bolted, welded or union cover:
(2) globe (straight angle or oblique pattern), with
outside screw and yoke, rising stem, bolted or welded
bonnet, screwed or bolted gland, plug or needle type
disk, and reduced or standard bore.
(1) wedge gate, with outside screw and yoke, rising
stem, bolted or welded bonnet, screwed or bolted
gland, and reduced bore (compact);
(e) B e l l ows - sea l e d va l ve s :
(2)standard bore.
NOTE. Screwed and socket-weld ends classes 800 and 1500
only.
1)
reduced bore;
C only:
pattern),
inside screw, rising
stem and handwheel, bolted or welded bonnet, gland
nut and plug or needle type disk, for use at temperatures
up to 425
oblique
(d)
G l o b e v al v e s . n c l u d i n g s c r e w d own c h e c k v a l v es
s t r a i g h t ang l e o r
(2) standard bore.
(1)
reduced bore;
s t r 8 i g h t ang l e o r ob l i q u e pa t t e r n ) , outside screw and
yoke, rising stem and handwheel, bolted or welded
bonnet and bolted gland, plug or need le type disk:
ve l ve sclG l o b e v a l v e s , n c l u d i n g s c r e w d own c h e c k
(2Jstandardbore (class 1500 only).
(1)reduced bore, compact (class BOO on ly);
C only, and with
screwed and socket-weld ends:
v8 l v8s .
with inside screw, rising stem
and handwheel. bolted or welded bonnet and gland nut,
for use at temperatures up to 425
Wedgegete
b)
(1)
reduced bore, comp act (class BOO on ly);
and 800 only);
(2) standard bore.
ve l ve s ,with outside screw and yoke,
rising stem, bolted or welded bonnet and bolted gland:
gete
a)
Wedge
1600
of the following types.
(2 in) and smaller in classes
150.300.600, BOO and
gate, globe stop and check
valves with flanged, screwed. socket-weld or butt-weld
ends, in nominal sizes 50 mm
8S5352: 1981
British Standard Specification for
Steel wedge gate, globe and check valves 50 mm and smaller
for the petroleum, petrochemical and allied industries
Section one. General
1. scope
This British Standard specifies requirements for forged,
cast or bar stock steel wedge
-
8/9/2019 BSI 5352-1981
11/32
$Non-preferred size.
ftanged ends and butt-weld ends;
B denotes screwed ends;
:
A denotes
A.B.C
NOTE
C.
A.B.C
5 0 A
A
A
C
C
4 0 A
A
A
B.
9.
. C
A.
A.B.C
3 2 A
A
A
9.
C
B.C
2 5 A
A A
A
.C
A.B.C
2 0 A
A
A
1BW
8
B- ---
10
B- ---
15 A A A
B. c
600BOB00
50
sts.
DN
1.
The above pressure/temperature ratings apply to the
bellows sealing element and are a minimum requirement for
valves complying with this standard: bellows ratings higher than
the values listed above may be obtainable from individual
manufacturers who should be consulted as to the maximum
pressure/temperature ratings applicable to their particular
product.
NOTE 2. The use of valves et temperatures where the creep
strength might be the limiting criteria is subject to the
establishment of a design life.
Table 3. End type availability according to class
and size of valve
Nominal
Class
160
NOTE
bal
eu
55t
4 7
3 4
2 2
15
t Primary service pressure.
03
59
6 6
Be
126 96
150
9 4
176 9 3
20 0 91
22 6 9 0
25 0 87
27 6 83
30 0 7 9
32 6
35 0
37 5
40 0
42 5
46 0
46 4
47 6
50 0
52 5
64 0
7 6
71
8 7
87
100
08
7 5
60
0930t038
>s r
C
(2 in)
7. End types
Table 3 specifies the types of ends available for each class
and size of valve covered by this standard.
X in)
DN 50
32*(1% in)
DN 40
(1
(1
in )
DN
Win)
DN25
(Xin)
DN 20
&in)
DN15
DNlO
f/
in)
Valvesof the
following nominal sizes are specified in this
standard:
DN
1.
The above pressure/temperature ratings are the
minimum requirement and valves having ratings in excess of
these may be obtained from individual manufacturers.
NOTE 2. The use of valves at temperatures where the creep
strength might be the limiting criterion is subject to the
establishment of a design life.
6. Nominal sizes
iPrimary
service pressure.
NOTE
kPa.
100
/mm2
6
1
03
55t
60
l bar
133
132
130
129
128
126
122
118
110
103
9 7
91
8 6
8 0
74
7 3
6 8
136
137
138
Mr *
8uvtoo
ottew
uto
5st
15
5 0
63
22
129
128
128
125 126
122
122
116
116
110 110
103
103
97
9 7
89
91
81
8 6
71
8 0
59
7 4
55t
73
47
6 8
34
130
129
130
132
133
132
135
133
137
136
138
137
rar*
13s
>ar*
Iowloo
on-ohoak
&mum
ted
i%metybdmwm
ee l
ohremtum-I
bm
la
525
54 0
150
176
20 0
22 5
25 0
27 6
30 0
32 6
36 0
37 5
40 0
42 5
45 0
45 4
47 5
50 0
C
-30t03 8
6 0
7 5
100
125
tempronIm
8uvhm
valvewb l
ratlngr
for
bellow8
Preuun/tomporaturo
ablo
2.
valvbsock&weld
end
crowod and
Prouun/temperaturo ratings for class
800
BS
5352 : 98
Table 1.
-
8/9/2019 BSI 5352-1981
12/32
-
11.5
11.0
15.0
14.5
19.5
19.0
28.0
27.0
32.0
31.0
40. 0
37.5
4
-
VOIVOS
Standard bore
mm
mm
cheek
ebo
and
valves
Standard bore
T
Clau
1600
Wedge gate
T
Reduced bore
mm
6.0
9.0
12.0
17.5
22.5
29.5
35.0
_-.-
6.0
9.0
12.0
17.5
22.5
29.5
35.0
45.5
T
Globe and check valves
_.
...-
Reduced bore
Standard bore
mm
mm
6.0
9.0
12.0
18.0
23.0
30.0
36.0
~
Standard bore
mm
6.0
9.0
12.0
18.0
23.0
30.0
38.0
46.5
-.
Wedge gate valves
150.3oo.600
and 800
.
mm
3.0
3.0
5.0
6.5
8.5
11.0
15.0
18.5
Classes
alVeS
Globe needle
port
diameter and seat bore
_.
Minimum
__
...
.
Gene .
The outside diameter or dimension across
flats of body ends for all types of screwed-end and
socket-weld end valves shall be not less than the
minimum values specified in table 6 for classes 800 and
1500.
9.4.2
Socket-weldends.
Socket-weld end valves shall
have circular ends and end faces machined square to the
axis. Socket details shall comply with the requirements of
BS 3799.
9.4.3 Screwed ends. Screwed-end valves shall be of an
appropriate shape to facilitate tightening and shall have
either hexagonal or circular ends. The ends shall project
clear of the body to permit the effective use of a pipe
sea1bore shall
comply with the values specified in table 5.
9.4
Body ends
for screwed-end and socket-weld end
valves
9.4.1
portdiameter and
Port diameter and seat bore. The body end ports
shall be circular. The
bon
mm
5.2
6.1
6.7
7.5
7.8
8.6
9.3
Stondwd
ctou
1600
bo n
mm
mm
3.3
3.0
4.1
3.3
4.8
4.1
5.6
4.8
5.8
5.6
6.1
5.8
7.1
6.1
7.5
7.1
nduoed
ow
undard
l
00
n d
oa
o.
300.
lassas
1
thlokneual
onne
nd
adv
lnlmum
10
15
2 0
25
32
4 0
50
t
8
rho
DN
NCAM
thanthat
specified in table 4.
Table 4. Minimum body and bonnet wall
thickness excluding pipe
nds)
Ihe exception
of pipe ends, the minimum wall thickness of body and
bonnet, measured at any point. shall be not less
thiaknoas. Withrllonnet
Ihs
maximum pressure ratings. lo minimize pressure loss and
to minimize corrosive and erosive effects.
9.2 Body and
resistoenerel.The shell shall be designed
Saction two, Design
9. Shall
9.1
._
....
40
5 0
.
2 5
32
Nominal size
DN
8
10
15
20
__
_
packaging (see 44.6).
Table 5. Minimum port diameter and seat bore
(0)Requirements for special
43J.lruee
leekagerate isrequired for
check valves (see
1ostea1lower
(n)
Whether
41).
(ml Whether any additional markings are required (see
clause
(1)Special material requirements for valves in highly
corrosive environment or for low temperature service
(see clause 37).
C.
or for other special operating
conditions (see clause 35).
-30 C or above 400
(k)Material for bonnet/cover bolting, if required for
operation at process design temperatures below
(j)State if any special packing is required, and specify
packing design temperature, if above 400 C, or if the
desiyn pressure is above 50 bar (see clause 34).
li)The nominal trim material (see clause 33).
(h)
The bellows material (see clause 32).
25).
bonnet/covergasket type (see
clause
(Q) The body and
(1)The body and bonnet/cover material (see clause 23).
(e)
Stuffing bon requirements for bellows seal valves
(see clause 17).
16).
id)
Whether a particular form of disk is required (see
clause
(see22.1).
9.8).
or a union nut for check valves
(cl
Whether a bolted or welded bonnet/cover is
required (see
state the pipe
schedule number or wall thickness. and outside
diameter (see clause 9.7).
(3) If screwed ends are required, state form of thread
required (see 9.4).
(2) If butt-weld ends are required,
(1) If flanged ends are required, whether welded-on
flanges are acceptable, and type of facing (see 9.5).
(b)Whether screwed, socket-weld, flanged or butt-weld
ends are required (see clause 7).
l(4.6and 9.3).see clauses
(a)
Type, class rating and nominal size, standard or
reduced bore
state
in his enquiry and
purchase order, the following.
stsndard,
The purchaser shall
mayrequire features which depart from thisurcheser
alternalives and
the
permit
purchasar
Certain clauses of this standard
5352: 1981
8. Information to be supplied by the
BS
-
8/9/2019 BSI 5352-1981
13/32
D
or less is deemed to be horizontal.
Globe valves shall be designed to be suitable for
installation in either direction of flow but the preferred
direction of flow for globe valves shall be from
under the disk.
13. Nameplate
The nameplate shall be located on top of the handwheel,
the side of the yoke or the side or top of the cover, or,
provided that the minimum thickness shall be retained, by
drilling or pinning to the wall of a pressure-containing part
14. Wedge
The wedge of wedge gate valves shall be of the solid type
with integral or deposited faces. The sharp outer edges of
the seating surfaces shall be removed to prevent scoring
of the body seating surfaces.
5
(/,in)
nominal size), BS 1769, BS 3692 or BS 4190 except
that a square head, side head and tee head bolts are
acceptable.
12. Direction of flow
If check valves of the vertical or angle pattern are used.
the flow shall be in the upward direction.
NOTE. For the purposes of this standard, any line with a slope
(upward or downward) of 5
4882,BS 1768 (below 12 mm
Inthe flange
on the bonnet/cover neck, and secured by a nut if
required.
Bolts, stud bolts and nuts shall be threaded metric or UNC
and the dimensions of the threads shall comply with the
requirements of BS
(e)headed bolt passed through a plain hole
(d)stud bolts screwed into a tapped hole in the flange
on the bonnet/cover neck and secured by a lock nut;
(c)
stud bolt passed through a plain hole in the flange on
the bonnet/cover neck and secured to the flange by
two nuts;
trunnion, forged or cast with the bonnet/cover;
(b)swing bolt having an integral eye mounted on a
followmg types:
(a) hinged bolt secured by either a headed bolt passed
through the eye and secured by a nut, or a pin passed
through the eye and effectively secured;
:
Part 1 or BS 4439 as regards
dimensions and BS 4882 as regards materials.
NOTE. Studs need not be of the wrench fit type.
11.3 Gland bolting shall be one of the
(UNC) or BS 4439 (metric) to the tolerance Qrade
specified in BS 4882. Studs shall comply with the
requirements of BS 2693
:
Part 1
in shall be screwed in accordance with BS 2693
(X
in)
diameter. Stud bolts and nuts shall comply with the
requirements of BS 4882 except that any bolting smaller
than
aring joint, that the
pressure acts through the pitch circle of the ring joint.
Bonnet/cover flange bolting shall be of the stud or stud
bolt type. Not less than four bolts shall be used in any
flange and no bolting shall be less than 10 mm
that the pressure acts upon an area circumscribed by the
outside periphery of the gasket or, for
N/mm2.
assuming
the primary service pressures
given in clause 6 shall not exceed 62
stressin bolting material for
bonnet/cover flanges at
pipelme
or pipe fitting.
11.2 The working
boltinQ
forming part of the valve and is not concerned with bolting
for flanged connections between the valve and a
irconcerned only with that
11.Bolting
11 .l This clause
bontaet/cover shall be of a type that confines the
Qasket.
10.
Backseat face
A backseat face shall be provided for wedge gate and
globe valve?
(b)if specified on the purchase order, welding
complying with the requirements of BS 3351.
9.9 Flanges between body and bonnet/cover. For
bonnet/cover attachment by bolting, the mating flange
between the body and bonnet/cover shall be of a suitable
shape to provide adequate strength. The joint between
body and
11);
or
1600
mm
38
45
55
62
75
80
9.8 Attachment of bonnet/cover. The bonnet or cover
shall be attached to the body by means of i ther :
(a) bolting (see clause
dimonrion
across flats of body ends
Class 800
mm
22
25
32
38
45
55
62
75
Class
(b)the pipe wall thickness and outside diameter.
Table 6. Minimum outside diameter or dimension
across flats of body ends
Nominal size
DN
8
10
15
2 0
2 5
3 2
4 0
5 0
T
Minimum outside diameter or
c )
welded to the body, if agreed between manufacturer
and purchaser.
The welds of end flanges attached by butt welding shall
comply with the requirements of BS 3351. The
attachment of flanges by other welding processes shall be
the subject of agreement between the manufacturer and
the purchaser.
9.6 Face-to-face and end-to-end dimensions.
Face-to-face dimensions for flanged-end valves and
end-to-end dimensions for butt-weld end valves and
ring-joint end valves shall conform to the dimensions
specified in BS 2080.
9.7 Butt-weld ends. Butt-weld ends shall conform to the
details specified in appendix D. For butt-weld ends, the
purchaser shall state e i t h e r :
(a) the pipe schedule number and outside diameter; or
(b)cast integral with the body;
o r
:1970.
End flanges shall be e i t h e r :
(a) forged; o r
:
Part 2
:
Part 2. The type of flange
facing shall be specified by the purchaser and shall be one
of the types shown in figure 1 of BS 1560
tlanges.
End flanges shall comply with the
requirements of BS 1660
5B or ANSI 82.1 unless otherwise stated
by the purchaser.
9.5 End
rhsll comply with the requirements of
BS 3799. The thread shall be in accordance with either
API Standard
spsnnere complying with the requirements of
BS 192.
Thread lengths
across
flats dimension shall be suitable for use with
open-ended
5352: 1981
wrench. For screwed-end valves with hexagonal ends the
BS
-
8/9/2019 BSI 5352-1981
14/32
I
6
5.0
6.0
width
mm
7.0 up to and including 9.5
Above 9.5 up to and including 12.5
Above 12.5 to and including
p
19.0
Above 18.0
mm
2.5
3.0
packins
stem diameter
Nominal
-
12.5
16.0
16.0
19.0
19.0
20.5
Table 10. Packing and stuffing box dimensions
Nominal
Standard bore
mm
soil
IOsa
1
Raduced
bon
mm
mm
8.0 8.0
9.5 8.0
11.0 9.5
12.5 11.0
14.5
12.5
16.0 14.5
19.0 16.0
19.0 19.0
aD0
and BO O
Standard bore
160,300.
lanes
dbmotor
Jze
DN
8
1 0
15
20
25
32
40
50
Minimum stem
14.5
12.5
17.5
40 16.0
14.5
19.0
50 19.0
16.0
20.5
Table 9. Minimum stem diameter for globe valves
born
mm
mm
mm
8 7.0
7.0
10 8.5
7.0
15 9.5
8.5
12.5
20 11.0
9.5
14.5
25 12.5
11.0
16.0
32
Roducod
ore
8 t M dwdbo m
Standard
Booleu 1
oond
0060,3oo.
la8s.a
diwnotarteminlmum
aI20
DN
Nomlnal
8.Minimum stem diameter for wedge gate
valves
25
1.6
32
1.5
4 0
2
5 0
2
Table
trawl
mm
mm
8
10
16
20
Jzeore
MInImumwearoo tomhul
Tsble 7. Minimum wear travel
in
table 10.
spactfiedacking widtha88than six times the nominal
ba nottuffing box shall
specifiad in table 10 can be
accommodated. The depth of the
packing size
dlamatar shall be such
that the
sram
batwaenthe
stuffing box diameter and the
relationshipaflatbottomad. Tho
intagralwith tha bonnet/cover
and shall
ba
beingof radused form. The stem shall be
such that the disk cannot become detached in service.
Retention shall be by an effective method.
17. Stuffing box
The stuffing box shall
radiused
form, and shall be such that the disk cannot
become detached in service. Retention shall be by an
effective method.
16.7 Stems on needle valves shall have the disk as an
integral part or alternatively shall be such that the needle
can articulate to permit correct alignment with the seat,
the thrust point
stem and wedge.
Threaded or pinned connections between the stem and
the wedge shall not be used. The design of outside screw
stems shall be such as to prevent the wedge leaving the
stem, or the base of the stem turning in the wedge during
operation of the valve. Stems for inside screw valves shall
have an integral end in the form of a button which rotates
during operation of the valve.
16.6 The design of the stem disk attachment on globe
valves shall be such that the disk can articulate to permit
correct alignment with the seat, the thrust point being of
teehead, fitting into a slot in the top of the
wedge to provide flexibility between the
keyway or other suitable
means.
16.6 Stems on gate valves shall have an integral end, in
the form of a
e.Q.a square end,
stem shall have a bevelled, spherical or flat seat
machined on it to seat on to the backseat when the valve
is fully opened or. for globe valves, the seating shall be on
the stem or on the disk nut.
16.3 Stem threads shall be of ACME or other trapezoidal
form for stem diameters 12 mm and above. For smaller
stem diameters the choice of thread shall be at the option
of the manufacturer.
16.4 On inside screw gate and all globe valves the stem
shall be of sufficient length to ensure that the handwheel
stands clear of the yoke when the valve is in the worn
closed position. The upper end of the stem shall be
provided with positive and adequate location for mounting
the handwheel,
sterndiameter, measured where it
passes through the p acking, shall be a8 specified in
tables 8 or 9 for wedge gate and globe valves
respectively.
NOTE. These minimum stem diameters may not be adequate for
all seating designs. stem materials and service conditions.
16.2 The
(see 9.3).
16.
Stem
16.1 The minimum
seat shall be at least equal to the area
through the seat
hbecoming
detached in service. Where a disk nut is used it shall be
securely locked in place.
When in the fully-opened position, the net area between
the disk and the
ba
retained on the stem in
such a way as to prevent any possibility of
bythe purchaser. the needle-point type.
either loose or integral with the stem.
When assembled. the disk shall
c )
if specified
(bJthe
plug type; or
a the flat-faced type;
or
ei therisk of globe valves shall be of
ba in accordance with table 7.
16. Disk
and disk nut
The
teehaad of the stem, The minimum values of
wear travel shall
racelvo
the
button or
aslot at the top to
wedge
shall be provided wlth
soots.
The
nsura
re-entry between the
pravrnt rotation
and to
Qulded
in the body toadge shall be
5352: 1981
Tha
BS
-
8/9/2019 BSI 5352-1981
15/32
Mn are the carbon and manganese contents respectively, in percent.
7
%, for
carbon-manganese steels.
C and
k C++F
to be not greater than 0.41
X%
molybdenum steel;
(b)
0.15 % maximum, for 5 % chromium
(a)
0.25 % maximum, for carbon and
carbon-molybdenum steels;
:
8s
970.
All pressure-containing parts involved in welding
operations shall have the carbon content restricted as
follows
:
Part 2, except that flat covers
may be made from plate complying with the requiremen
of BS 1501 provided that it has the same nominal
composition as the shell,
NOTE. Bar stock m aterials for bodies and union nuts should be
selected from BS 1502, BS 1503 or
Vert icelpat tern.
These check valves shall be provi
with guides that shall be integral with either the seat,
body or co ver. The travel of the ball shall be limited by a
grid or by other suitable means, which shall permit
adequate flow when the ball is in the fully-opened
position.
Section three. Materials
23. Shell
The material for the body and bonnet/cover shall be
specified in the purchase order and shall be selected fro
those listed in BS 1560
(b)
Quide shall be separate fro
the cover, closed at its upper end and be provided wit
metric tapped hole or other means to facilitate remov
The guide shall be located in position between the bo
and cover flanges.
The guide shall be correctly located relative to the bod
port by a dowel or other positive means.
p8 t t e r n .These check valves shall be
provided with a removable guide to locate the ball
throughout its travel. For union or welded cover valve
the guide shall be integral with the cover.
For bolted cover valves the
Horizonlal
8811
ype.
(a)
fulllength of piston travel.
22.32
Quidanceover the
10ensure
effective
f ype .
Piston-type check valves shall have
integral or separate guide of sufficient length
be at least equal to the area
through the seat.
22.3 Piston and ball guides. The design of piston and ball
guides shall be as specified in 22.3.1 and 22.32
respectively.
22.3.1
Piston
ba used.
When in the fully-opened position the net area between
the ball and the seat shall
cushioning effect is obtained. A
single point contact shall not
type.The design shall be such that at the top
end of travel of the ball a
Ball
netarea between
the seating face and the seat shall bs at least equal to th
area through the seat.
22.22
poaition,the
dashpot.
The piston shall be of sufficient length to ensur
its affective guidance over the whole distance of its trave
When in the fully-opened
Q&e.with a bleedhole, so as to make an effective
partshall fit Into tha shell orylindricalestingface. Tha
iashaped to form a
piatonshall be in the form of a
cylinder. the lower end of which
ryw.Thoisron
1981
222.1
lieof 10 000 cycles for globe valves and
2000 cycles for wedge gate valves where one cycle is
specified as fully open to fully closed to fully open.
The suitability of the bellows assembly design shall be
demonstrated by means of prototype tests upon
representative samples in accordance with appendix C.
22. Check valves
22.1 Covers. Valves shall be provided
with bolted or
welded covers or union nuts, as specified by the purchaser
(see also 9.8). If union nuts are used they shall be of
hexagonal or octagonal shape.
NOTE. The outer
surface of the union nuts need not be machined.
Union joints shall be of the male and female type with a
gasket
222 Check mechanism. The check mechanism shall
either be of the piston type as specified in 222.1 or of the
ball type specified in 22.22.
BS 5352 :
spline
or similar arrangement.
The design of the bellows and attachment shall be such
that the valve head assembly is capable of a minimum
cycle
teeheed or button, the whole of the stem,
back seating arrangement and stem packing shall be
isolated from the line medium by a flexible metallic
bellows.
The bellows shall be attached to the bottom end of the
stem and the body or bonnet by welding. Globe valve
stems shall be prevented from rotating by provision of a
Shallbe closed by turning the handwheel in a clockwise
direction. The handwheel shall be suitably marked with an
arrow and the word OPEN or CLOSE or SHUT (as
appropriate) to indicate the operating direction of rotation.
202 The handwheel shall be secured to the yoke sleeve
or stem in such a way as to preclude loosening in service.
21. Bellows seal
Except for the
bepreferably of a spoked
design with knobs or studs projecting beyond the outside
diameter of the wheel to provide an effective grip. Valves
sectring. If fitted, the body seat ring shall be
secured in such a way that it cannot loosen in service. The
seat ring in globe valves shall be screwed in and either
shoulder-seated or bottom-seated and provided with lugs,
slots or a hexagon socket to facilitate removal. The
dimension of the seat bore shall be as specified in table 5.
20. Handwheel
20.1
The handwheel shall
or
(c)
in
the case of steel shells, a hard faced deposit.
19.2 Body
(b)a separate insert;
eIthK
(al integral with the body shell; or
eeetThe body seat shall be
S,
Body seat and body seat ring
19.1 Body
surfeces.
19.3 Yoke buah. The yoke bush on globe valves shall be
either screwed or otherwise fitted into the yoke and
locked in position.
1
sleeve. The yoke sleeve on wedge gate valves
shall be machine finished on all contact
effectively on to the
bonnet.
16.2 Yoke
yoke
bush
16.1 Yoke. The yoke shall be either integral with the
bonnet or screwed and secured
and
loove
oke
8. Yoke,
-
8/9/2019 BSI 5352-1981
16/32
ES 970-3 10S24.
34. Stem packing
A general purpose material suitable for the full
pressure/temperature range of the valve shall be
supplied. The packing shall contain a suitable corrosion
inhibitor. Graphite impregnated or coated packing shall
not be used on valves with stainless steel shells or trim
materials unless suitably inhibited.
NOTE. This does not preclude the purchaser specifying a
particular packing.
8
BS 970-3 1 OS24 is specified, the material
shall be supplied in accordance with the general clauses
of BS 1503 or BS 1506, as appropriate. The chemical
composition and mechanical properties shall be in
accordance with
(sea
Table 11 for the materials affected).
33.11 Where
ndardrersLanufa 83/CR 13 shall be of the
seatin surfaces other
than CR
matinardness betweeniirential
N/mmz.
33.10
(R,) not less than 205
Table
11.
33.7 Finished stems shall have a hardness not less than
200 HB.
33.8 The steel supplier shall supply a certificate of
compliance stating that the material conforms with the
requirements of the standard.
33.9 Material intended for the manufacture of stems shall
have a yield stress
56 HB;
(b) for other trims. the appropriate minimum hardness is given in
less
than
ahres,
of not
h&
body
seat
and ball, in the case of ball
betwsen
alves,
and
ets edgease ofheutfaaaa in
b&men
mating body and wedge seat
ffferance
in hardness
256 HB minimum with
a
CR 13 and Cu-Ni, IS
specrfied, either material shall be used for the body seat
surface. The other material of the combination shall be
used for the wedge, d isk, piston or ball surface.
33.4 Stems shall be wrought material.
33.5 The temperature limitations of certain trim material
will restrict the pressure/temperature ratings of the valve
to which they are fitted.
33.6 Seat surfaces shall have:
(a) for trim with symbol CR 13, a hardness of
matenal shall be selected from among
those listed in table 1 1 under nominal trim symbols,
33.3 If a combination trim, e.g.
(2)
ptston or ball seat surface.
33.2 The trim
(1)
body seat surface;
(c)
check valves,
(1) stem;
(2) body seat surface;
(3) disk seat surface;
(4) disk nut.
valves;b)globe
I
stem;
(2) body seat surface;
(3) wedge seat surface.
1
g t
valve;
wedge
a
comprtse the following:nmshall
3072.NAt4
33. Trim
33.1
BS
3072-NAl6
ekoyt
BS
mckel-chromrum-iron
nn9rel-rronchromrum.
molybdenum-coppmr alloys*
NA 14
NA16
1501-347817s
tabilrzedlniobium
tool
chromium-nlckel
urtmnitrc
tabihred
t601-304512S
terl
chromrum-
nickel
Unrtrbrkzed
uatonmc
lnconel600.Known as
lncoloy
825.Known as
1501-316St2
S
(2X%
molybdenum)
chromium-nickel-
molybdenum steel
1501-32tS12
Austenitic
ES
tabikzed)
chromrum-nickel
steel (titanium
austenuic
qualrty
and a melting point
above 955 C.
31. Gland
A one-piece gland or any other gland flange shall be of
steel. The bushing of a one-piece bushed gland or the
gland proper of two-piece gland shall be made of a
material having a melting point above 955 C.
32. Bellows
Bellows material shall be selected such that the maximum
service temperature is below the creep range.
NOTE. Typical material for bellows are as follows.
Material
Corresponding
British
Standard
specification
Stabilized
C .
Grey cast iron shall not be used. If carbon steel is used it
shall be suitably protected against corrosion.
30. Yoke bush or sleeve
The yoke bush or sleeve shall be of non-rusting metal
having a suitable bearing
porn1above955
(seealso clause 37).
29. Handwheel and yoke bush/sleeve retaining
nut
The handwheel and yoke bush/sleeve-retaining nut shall
be of a material having a melting
Iron
iron
or nodular
(se0also clause 37).
28. Handwheel
The handwheel shall be of steel. malleable
steel
trim.
27. Yoke
Any yoke separate from the bonnet shall be of carbon
gridplates shall be of a material
not Inferior to that of the normal
Disk-rotaimng nuts and
Its
seating face and also its guides
shall be of a material at least equal to that of the shell.
drfferent
from
either integral or
weld deposited seating surfaces. Any component with
material
disk.piston or ball shall have
corrosronresistance as that of the
shell.
26. Wedge, disk, piston or ball
The wedge,
surtablo
for the pressure/temperature
rating of the valve. Any metallic part of the gasket shall
have at least the same
(c) soft iron.
The gasket shall be
tacketed asbestos; or
b)
starnloss stool
ES 3381; orn
pecrfied
s8)
eitherod y
and bonnet/cover gasket shall bo
Body and bonnet/cover gasket
Tho
mfenorto the shell material.
26.
soattngsurface shell not be
11srom
rfferent
etsnal)ng made of
ES5352
: 1981
24. Body seat ring
A
body seat
-
8/9/2019 BSI 5352-1981
17/32
wfaoaoot etweott
urdrtw
ifforetttiel
percent
NOTE 5. A
rnimum.
0 7C
ruportron
5
ht
rr
tanium
y
ubstituted
manufactur
attenpurchaser andgreement
y
OTE 4.
spe&ed.
quoements
treatment.
NOTE 3. No hardness
hear
mal
ar1
after
murhed
IhuI
rttarr:orl
arrlnors
to be
urhtr:o
eotintr
tenl
is required and the
or
which the
uPPker
the purpose
Ihe
Steel
nrlviso
nnutacturers
hrr
valveOfE2. It is recommended, in the case of material forseat surfaces, that
appliceble
for stems, see 33.4
.
Not
200
NOTE
13Cr
see
33.7)
15034lOS21
S
33.8)
ree 33.7 and
192-F8a
s97041OS21
70-30
vi-cu
Ni-Cu
HF-Ni
Al
1
BS 307 1ole
see
33.901ee
we
note 31
350
(see
33.10)
78-l
1
Ni-Cr
350
8-26-5
Co-Cr-W
70-30
Ni-Cu
Ke
33.31
hloe
33.10)
200
R
and
13Cr
300
1re*
33.7 and note
5034lOS21s
nd
note
21
ee 33.7.33.8
92-F6a
S97041OS21
A
217CA15
2oc29S1504
2)
Cu-Ni
13Cr
Manufacturers standerd with nickel 30 % minimum
free 33.7 and note
15034lOS21
s
42oc29
snd note 21
92-Ffte
3Cr
200 ES 1504
(see
33.3)
Al
Al82-F683Cr
13Cr
A13
end
Cu-Ni
_j
200
1751see33.10)
33.10)
see
61
250
zl toto
I
HF
I3.1)
and 33.11
see
88-26-6
cr-co-w
2520
Cr-Ni
AlEI-F310
5-20
Cr-Ni
Al92-F318
25-20
18-10-2
18-10-Z
Cr-Ni-Mo
Cr-Ni-Mo
1510-z
18-9
Nb
Cr-Ni-Nb
Cr-Ni-Nb
19-8Nb
192-F347
8-E Nb
1504316C16
nors
41
es
lsee
347c17
s
1504
347c17504
31
9s
(see
note
(see
note 31
3)s00
note
31see
note
3)
see
note
31
ree note
3)
3)
(see note
Ire0note
Al92-F321
0-0Ti
Cr-Ni-Ti
Cr-Ni-Ti
158Ti
19-9Ti
CR13
0s97031os24
Isee 33.91
1503316S31
Isee
33.9 and 33.9)
BS
-CFEM 05970316516
(see33.9)
A351
1503347s31
33.9)
9s
(see
33.9 and
0.5
970347517351-CFBC
33.9)
see
1503321S31s
(see
33.9 end 33.91
BS97032lS12
21see
33.7 and note
15034lOS21S
33.7.33.9
and note 21
see
I
02-FBa
85970410521
Al
217-CA152oc29s150466 33.6)
200
3Cr
13Cr
4wi6n aan6
I
ot5
1
soe
sstln6s
swfeces
e t
urfsses
Sect
wmbol
mm
1
soocifioe6ms
etwiel
ppmprlete
a
aim
material
4
Table 11. Vahm
-
8/9/2019 BSI 5352-1981
18/32taquitad by the purchaser.thetwisenktss
certificate
whichever is the lesser.
10 Bellows shall be tested in accordance with appen dix C.
NOTE 2. This may be covered by a manufacturer s
Part
1 or 1.5 (for the
shell) or 1 .l (for the seat) times the manufacturer s bellows rating
rxoduct has been manufactured in
purchase order.
For bellows sealed valves the hydrostatic shell and seat test
pressures shall be as specified in BS 6755
the
enqurry or
bv the
manufacturer
that
rntneurcnaser
clarm
valves this should be specified by the
In
relation to a product is aarkmg BS 5352 on orNOTE.
-
for
check
ower_seat
test leakage rate is required
I).
NOTE 1. If a_
:Part
E
shall apply for check
valves (see BS 6755
vafves
and rate
ValvOS
including bellows sealed
Seat test leakage a rate A shall apply for ate and globe
table 1 la of this standard.
The test duration shall be 15 s for each test.
Pan1 and766:coordanoa with BB
ospatoh
in
manufaotunr
before
the
y
ested
rauure
prosawe testing
All valves shall
fiva.Tasting .
43. Product
Qction
(c)
class rating.
(b)they are in accordance with BS 5383.
42. Omission of markings
Where the size or shape of the valve body precludes the
inclusion of all the required markings, some of the
markings may be omitted from the body provided that
they are shown on the identification plate.
The sequence of omission shall be:
(a) nominal size;
(b) manufacturers name or trade mark;
___-
41. Additional markings
Additional markings may be used at the option of the
manufacturer or at the request of the purchaser provided
that:
(a) they do not conflict with any of the markings
specified in this standard;
HF
Seat CR 13 CR13
CRl3-HF-CR13oredgeHFor
_~_...__
CR13
Stem CR 13
identrfrcationare:rim
(1)
piston or ball;
(2) seat.
Examples of valve
(1)stem; (2) disk;
(3) seat.
Check valves:
(11stem;
(2) wedge; (3) seat.
Globe valves:
Trim material shall be
Indicated in the following order using the appropriate
symbol from table 1 1.
Gate valves:
identificafionrimc)Valve
todetsrmrns
the
pressure/temperature rsting of the valve from the
manufacturers technical data.
Where the valve is subject to special
pressure/temperature limitations, e.g. bellows sealed
valves, this shall be so indicated.
be
used
ay
dentrfrcrtion
hus
interchangeability
parts.
NOTE.
tn
design, detail. dimensions and material, and thet have
fbl
the manufacturers figure or number identifying the
valve in all respects. The same figure or num ber shall,
therefore, only be used for valves that are identical
certificrttonmarks
epproprrrte
authority for other
o
tha
SI
or
dminrstarad
by
cettihcrtton
marks
f
ssa
the
%
iertr HP2
empstend.
Hemelrylrndr Avsnur.
nrtctutron.
rmsh
Standards
rrrctor.
eddressed
to the
larmr
should be
upport
such
ertiltcstron
to
partv
1third
vsrlebrlrty
he
s
to
nqurnar
erponrrbllrty.
manufrcIursr8
herefora
ulalv tha
8
lsrm
uch
a
f
rtrndsrd The accuracy
equrremsnts
01 thr
ith
theccordance
8S5352.
ritish
Standard, i.e.a)The number of this
(g)Arrow to indicate direction of flow (globe and check
valves only).
40. Identification plate marking
Identification markings shall include the following:
RSpL.
This
identification shall be placed on
the rim of both pipe end flanges or the bonnet/cover
end flange of the body as applicable and on the outside
periphery of the ring. In the case of non-standard ring
joints for body/bonnet flanges the flange and ring shall
be marked
R25L
bonnet/coverflanges
grooved for ring joints and the rings to be used with
them shall be marked with the corresponding ring
number (e.g.
(1)
Pipe end flanges and body to
le)
Melt identification IS required on all
pressure-containing steel castings in an unmachined
location.
(d)Manufacturers name or trade mark.
:
1970.Part 2
symbol
specified in appendix D of BS 1560
(c)Shell material identification, i.e. the standard
ratmg
(e.g. 300).b)Class
Nommal size (e.g. DN 15).
rn
clause 40. The body marking shall state the
following.
la)
distmct from the identification plate referred
to
spocrfred in clauses 39 to 42.
39. Body markings
Body markings shall be integral with the body or on a plate
securely fixed to the bod y. If on a plate, this shall be
separate and
markrng
dentifrcatron
plate
purchaser and the manufacturer.
Section four. Marking
38. General
Each valve shall be clearly marked with the body and
specrficatron
for all parts shall be subject to agreement
betweon the
servtce.
the material
corrosrve services or
onvrronments. or for low temperature
specifrod for highly
accsptabla.
37. Special applications
If valves are
ore
lummrum
matertal to the manufacturers
standard.
NOTE. Brass end
corrosion-resrstant
matonal and attachment shall be of
steals shall not be used.
36. Nameplate
The namoplats
tensrle
strength. Free-cutting carbon
/mm?
Inthe purchase order.
material for gland and yoke bolting shall be steel of at
least 430
otherwrse specified
in.
36.2 Unless
BS4882. for bolting equal to or
greater than
87/2Hofrsdob)
Hin;oltrngless than506-621 A, forSa)
metenal shall be:
oltrng
rnthe purchase order,
body and bonnet/cover
spec~hotftherwrso
BS5352: 1981
36
Bolting
36.1 Unless
-
8/9/2019 BSI 5352-1981
19/32
d
-ydrostatk
seat
pr@8SU?O
J
LOW
d
Pnoumrtic
Scot
Hydrostatic
d
J
d/
Hydrostrtlc
Backseat
\/
sealed
gate and
globe
;
Bellows
/
Check
L
Globe
type
Gate
VIlV@
pressure
tests
laafter clause 43.
Table 1 la. Required production
ollow+g new table
New table la
Insert the
-
8/9/2019 BSI 5352-1981
20/32
-
8/9/2019 BSI 5352-1981
21/32
Typicalwedge gate valve (outside screw)
-weld end
1 1
DodY
18 Seat
1 9
Wedge
Item 8 may be welded or screwed to the yoke.
Figure
1.
15 Bonnet
16 Body/bonnet gasket
17
IO
Gland stud
11
Yoke
12 Gland packing
13 Body/bonnet stud
14 Body/bonnet nut
9
Swing bolt retainer+
9
Gland
pan
Sleeve nu t
2
Handwheel
3
Nameplate
4
Stem
5
Sleeve
6
Gland nut
7
Gland swing bolt
ref.
Name ofart
art
A
Part ref.
Name of
a
Q
13
BS6362:
E z
we d
end
fo
matter during transit end storage
44.6 When special packaging is necessary, the purch
shall specify his requirements.
the closed position when derpatched.
44.6 Body ends shall be suitably sealed to exclude
vslver wedges and disks shall be
6).
44.4 Gate and globe
Section
BS 1133
vetves.machined or threaded surfaces shall be coate
with an easily removed rust preventive free
ba
left in their natural state
44.3 With the exception of aurtentic stainless steel
mmimize the possibility of deterioration
during transit and storsge.
44.2 Unmachined external aurfeces shall be rust-proofed.
except for austenitic stainless steel valves, which shall
asto
pmperation
44.1
After testing. each valve shall be drained, cleaned
and dried, prepared and suitably protected for despstch in
such a way
deepatch
44. Deapatch
Section six. Preparation for
-
8/9/2019 BSI 5352-1981
22/32
Bodv
Figure 2. Typical wedge gate valve (inside screw)
13 Wedge
14 Seat
15
I
Handwheel nut
Handwheel
Nameplate
Stem
Union gland nut
Gland
Gland packing
Gland ring
9 Bonnet
10
Body bonnet studs
11 Body/bonnet
nuts
12 Body/bonnet gasket
Part1
ame
art
ref.
srtf
l.
Name
an
-weld end
Scre
: 1081
S5362
-
8/9/2019 BSI 5352-1981
23/32
valve
(outside screw)
1 3
* Item 12 may be welded or screwed to the yoke.
Figure 3. Typical globe
6362: 10
BodY
end
BS
of
Part
Handwheel nut
11
2 Handwheel
12
3 Nameplate
13
4
Stem
14
5
Yoke bush nut
15
6 Yoke bush 16
7
Yoke
17
8 Gland nut
18
9 Gland swing bolt
19
10
Gland
2 0
Gland stud
Swing bolt retainer*
Gland packing
Bonnet
Body/bonnet gasket
Disk
Seat
Body/bonnet studs
Body/bonnet nuts
Parl ref.
Name
l
Part
I
amaaf.
art
-
8/9/2019 BSI 5352-1981
24/32
scre
14
gobs valve (inside
BodV
Fgure 4. Typical
Dsk
14
Seat
15
d
Part
Handwheenut
Handwhee
Namepate
Sem
Unon gland nut
Gand
Gand packng
Gand ring
9
Bonne
10
Bodybonnet
stud
11
Bodybonnet
nu
12
Bodybonnet
gasket
13
Nmme
f.Part
lWdPW
al.
fbnge
end
Part
W&dodon
l
I
&
kmwd
end
/
BS6362: 1981
-
8/9/2019 BSI 5352-1981
25/32 E
ICtnQeend
Socket-weld en
Figure 5. Typical vertical ball check valve
orQed/castf
o onfl ngeen
BS6362: l eS
-
8/9/2019 BSI 5352-1981
26/32
oi
Part
Ball guide
Gasket
Union cover
Ball
Body
Figure 6. Typical piston/ball check valve
16
Part
ref.
7
8
9
10
11
Name
9ody/cover
stud
Body/cover nut
Piston guide
Piston disk
Forged/cost
flange end
Wbldedon
flange end
BS6362: 8
ket-weld end
-
8/9/2019 BSI 5352-1981
27/32
getevalve
1 7
(top)
Sealing ring (bottom)
Bellows
Figure 7. Typical bellows seal wedge
BodY
Seat
Wedge
Sealing ring
IO
the Yoke.
Gland packing
Body /bonnet stud
Body/bonnet nut
Bellows cover
Body/bonnet gasket
screwad
a
welded ormay
1
Sleeve nut 12
2 Handwheel 13
3 Nameplate 14
4 Stem 15
5 Sleeve 16
6 Gland nut 17
7 Gland swing 18
8 Swing bolt retainer* 19
9 Gland 2 0
1 0 Gland stud 21
11 Yoke 2 2
Item
Nsme of Part
art&
aart
f
am s
sf.
srt
wedend
Forged/cast
flange end
flange end
It-weld end
BSS362:
-
8/9/2019 BSI 5352-1981
28/32
IS01179.
18
face
mm
18
22
26
32
39
49
55
68
NOTE. The dimensions given in table 14 comply with the
requirements of
sealing
ot
utsid.
diameter
(2)
Minimum
(1%)
50
(1W
40
(1)
32
WI
25
(Xl
20
6)
15
(W I
10
desigMtion.Rp
8
Thread
thmad
ofize
fb)End faces of parallel-threaded valves shall have a
smooth finish at right angles to the thread axis. The
minimum outside diameter of the sealing face shall be
in accordance with table 14.
Table 14. Minimum outside diameter of sealing
face for valves with parallel threads in
accordance with BS 21
Nominal
7/l.
S0
(a)
Screwed body ends shall have female threads
complying with the requirements of BS 2 1, either taper
or parallel, as specified in the purchase order.
NOTE. BS 2 1 is technically equivalent to
withscrew threads
in accordance with BS 21
B.l General. If specified by the purchaser, valves
complying with the requirements of BS 5352 may be
supplied for use in piping systems with screw threads in
accordance with BS 2 1. When this is the case all the
requirements of this standard apply with the following
qualifications.
8
Application to piping systems
(2)
nominal pressure rating and nominal size.
Appendix
(1)that valves are to comply with the requirements of
this appendix;
(a)
shall be extended by:
purchaur.
This
shall be as listed in clause 8 of this standard except that
item
26).This marking shall
either replace or supplement the requirements of section
four of this standard. The supplementary marking shall
appear on the rims of both body end flanges.
A.7 Information to be supplied by the
(e.g.
PN
:
Part 1,
valves shall be permanently marked with the appropriate
nominal pressure rating
d t ed .
A.6 Marking. When supplied for use in piping systems
whose flanges are in accordance with BS 4604
T~H
:Part 1.
A.5
BS 4604
:
Part 2.
A.4.3 F i n i s h o f o i n t su r f a ce . The joint surface finish shall
comply with the requirementa
:Part 1.
A.42
Spot acing or back acing.
Spot facing or back facing
shall comply with the requirements of BS 1560
:
Part 1, the neck dimensions shall also comply
with the requirements specified in BS 4504
:Part 1. When
flange thicknesses comply with the requirements of
BS 4504
:
Part 2. Flange thicknesses shall be not
less than those specified in BS 4504
:Part 1 except
that flange thicknesses may be the appropriate values
from BS 1560
fKto2)
40
300
A.4 Body end flanges
A.4.1Dimensions. Body end flange dimensions shall
comply with the requirements of BS 4504
151050
25
300
(in)
10
150
6
150
prossurm
rating
PN DN
r.nps
ire
ominal
kSSO#Wl~l
:
Part 2. Column 3 gives the applicable nominal size range.
Table 12. Nominal pressure, class rating and
nominal size range
1
2
3
range,Valves in accordance with this appendix with
flanges of the nominal pressure rating given in column 1
of table 12 shall have the same face-to-face dimensions
as valves of the corresponding class given in column 2
end whose flanges are in accordance with BS 1660
size
:
1969 shall be as agreed between the purchaser and the
manufacturer.
A.3 Nominal pressure, class rating and nominal
:
Part 1
:1969.
Pressure/temperature ratings for valves in materials
other than those listed in table Al of BS 4604
:Part 1
:
Part 1 shall be in accordance
with table Al of BS 4604
Preuuro/temperatureratings. The
pressure/temperature ratings of valves with flanges in
accordance with BS 4504
qualifications.
A.2
ES 6352 apply with the following
1,When this is the case
all the requirements of
:
Part
5352
may be
supplied for use in piping systems with flanges in
accordance with BS 4504
Qenoral. If specified by the purchaser, valves
complying with the requirements of BS
:Part 1
A.1
ES 4604
system8 with flanges in
accordance with
8SS352: 1081
Appendir A
Application to piping
-
8/9/2019 BSI 5352-1981
29/32
L0
44
50
62
I
+ 0. -0.8
8
mm mm
mm
23
28
35
Td*rClWX
A
DN
15
20
25
32
40
50
A
ahe
Nomlnel
4.8 mm to 22 mm inclusive
Table 15. Dimensions of butt-weld ends
hickneonnwtion to pipe o f wall
r
is the wall thickness of pipe
Figure 8. Weld-end fur
B;see
table 151
6is the inside diameter of pipe (for tolerance on
15)seetable
sectlens
A
is the outside diameter of weld end
Typlcal
BS 2080.
valverimonsionr
of bun-weld end
Pan 2.
NOTE 2. For end-to-end
1600seeipastool
andwall thicknesses of rtsndelamoton
.
For outride
01
pipe.
NOTE
rn
table 16. Regardless of tolerances specified for
dimensions A and 8, the thickness of the weld end sha
never be less than 87.5of the nominal thickness
drmenrions of butt-weld ends are specified
wektends shall be finished to a slight chamfer
or be square, at the option of the manufacturer.
0.3 the
shall no
apply end
f
2.6
02 For valves required to con nect to pipe of less than
4.6 mm wall thickness. the angle 37.6
6362: 10
8so that sharp angles and abrupt
changes of slopes are avoided.
BS
1.5tand then run out
as indicated in figure B without abrupt change of section.
The outsides of weld-ends shall be run out in the manner
indicated in figure
.D.l The inside and outside surfaces of valve weld ends
shall be machine finished overall. Weld-end bores shall be
machined parallel for a distance of
(b)2000 cycles, for wedge gate valves.
The bellows shall be subjected to NDT examination on
completion of the minimum number of cycles and shall
show no sign of cracking.
Appendix D
Details of butt-weld ends
(a)
10 000 cycles, for globe valves;
C.6 A mnimum of three bellows of each size and type
shall be cycled to a minimum number of:
C.3 The frequency of cycling is not to exceed one cycle
per second.
One complete cycle shall consist of movement of the
bellows from the designed compressed condition to the
designed extended condition and back to the designed
compressed condition.
C.4 Cycling shall be carried out at ambient temperature
and at the corresponding rated pressure.
bellowr
used in bellows seal gate or
globe valve8
C.l The bellows shall be fatigue tested either by cycling a
completely assembled valve head assembly, or in a rig in
which the bellows attachments simulate the actual design
instellation.
C2 Prior to the cycling test, a hydraulic pressure test shall
be carried out in accordance with clause 43 of this
standard.
(1) that valves are to comply with the requirements of
this appendix;
(2) whether a parallel or tapered thread is required.
Appendix C
Type test for
(b)
shall be extended by:
be.88listed in clause 8 of this standard except that
item
supplled by the purchaser. This
shall
d t
8.3 Marking. Valves shall be clearly marked with the
thread designation on each end of the valve.
8.4 Information to be
TWIT2
-
8/9/2019 BSI 5352-1981
30/32
. _
*Referred to in foreword only.
20
le5tilIgdVafW5.
pmaauraVeasel5
barsandshapesforusainboibrsartdothar
Specifiition for stainless and heat-resisting steel
high-
temperature service
pre55ura-containing parts
suitable for high temperature service
Specification for stainless and heat-resisting steel
bars and shapes
Specification for austenitic steel castings for
alkv-steel pipe
flanges, forged fittings, and valves and parts for
high temperature service
Specification for martensitic stainless steel and
alloy steel castings for
Dryseal)
Specification for forged or rolled
-
Pipe threads (except
refineryuse
6786
wedge gate valves for
88
Soecification
for compact design carbon steel
ANSI 82.1
ASTM A 182
ASTM A2 17
ASTM A276
ASTM A35 1
ASTM A479
602*API
thread
inspection of
casing, tubing and line pipe threads
API STD 5L
Line pipe
API STD
BSI)
API STD 58 Threading. gauging and
NatIOnal
Standards Institute. American Petroleum Institute and American
Society for Testing end Materials standards (obtainable through
AIWJrbXn
OlloW8ng
0
the
derenCeis also made
.
tolemnces
Pipe connections for plain end steel and other
metal tubas in industrial application5
thmads
whom pressure-tight joints am m ade
on the threads
Part 1 Designation, dimensions and
el)oys
Pipe
pipes
and piping system
components in steel. nickel alloys and titanium
colour
coding of metal
w
Specification for material marking and
_ _
-----r-.r v r-.--
I
urpotes
pmssum
containing
tanges
and
atting
for
Metnc series
Part 1 Ferrous
vahre and fittings.
scmwsand nuts
Screwed studs for general purposes
Flanges and bolting for pipes.
bolts.
ack
hexagonS0metric
petmleum
industry
she5
2 in and smaller, for the
fcompact
design).
scmwed
an d
socket-welding wedge gate
valvu
ftanged.
or9ad
steal
screwed
and socket-welding for
the petrobum Industry
Cast and
St551pip5 fittings,
5crewI and
nuts
precirion
hexagon bolts,
etric
S0
mauerper unit
length of welded and seamless steel pipes and
tubes for pressure purposes
dimensksts
and
toBSlS00:Partsland2
Specification for
whhflanges
plants
Metallic spiral wound gaskets for use
m ln i s
nd
petrochemical
Pfpingsystems for petroleum
allwr:bar
pecification
for nickel and nickel
plate
sndhaet
Iloy5:
ickel
ickal
andpacffkatkm for
alfoy casting5lckel-coppar
IS07/l
IS01179
8S 4882
BS 6383
8s4504
es4190
BS 4439
3808.
S
8S 3692
BS 3799
3800s
B8
3361
B83381
B S3078
BS3072
08
307 1
UNF threads). Heavy series
Steel check valves (flanged and butt-welding
ends) for the petrochemical and allied industries
Steel globe and globe stop and check valves
(flanged and butt-welding ends) for the petroleum,
petrochemical and allied industries
Face-to-face, centre-to-face, end-to-end and
centre-to-end dimensions of flanged and
butt-welding end steel valves for the petroleum,
petrochemical and allied industries
Screwed studs
Part 1 General purpose studs
(UNC and
(UNC
and UNF threads). Normal series
Unified black hexabon bolts, screws and nuts
X
in to 24 in) for the petroleum industry
Part 2 Metric dimensions
Flanged end butt-welding end steel plug valves for
the petroleum industry (excluding well-head and
flow-line valves)
Dimensions of steel pipe for the petroleum
industry
Part 1 Imperial units
Part 2 Metric unit5
Unified precision hexagon bolts, screws and nuts
purposes
Specification for steel casting5 for pressure
purposes
Steel pip5 flanges and flange fittings (nominal
sizes
indUStrM8
Specification for steel forgings (including semi-
finished forged products) for pressure
snd allied5e in the chemical, petroleum
Corrorionand heat resisting steel. Imperial
units
Steels for
Atloy
steels. Imperial units
Part 3
carbon manganese steels.
Imperial unit5
Pan 2
Carbon and
petroleum. petrochemical
and allied industries
Steel5 for fired and unfired pressure vessels.
Plates
Part
ends)for the
fflanged
and butt-
welding
wed90
gate valve5
storage)
Steel
endranrport orrosion(duringgainst
0
Temporary protection of metal surface55cticm
S)
Packaging code
Parts 1 to
8S 970hhforuselmetric values
rlloyspring steel5 for the
manufacture of hot-formed spring8
Part
C5rbonand
steel5
Part
resisting
and valve
tainlou.
heat
ca5s hardening
Part 4
nltridino
Part 3 Steels for
hardenintt
by
teets
capable of surface
550~
teelr,
including
lloy
5rdening
P5rt 1 Carbon and carbon manganese steels
including free cutting steals
Pert 2 Direct
forging5
biro
and
bltetr.ter~tr in the form of blooms.
herdnou test
Port 1 Testing of metal5
Wrought
Brinell
sbnl
Method for
B.A.notincluding
thm5ds
Open-ended wrenches
1873.
BS 2080
BS 2693
Pipe threads for tubas and fittings where
pressure-tight joint5 remade on the
8S 1768
BS 1769
BS 1868
BS
600
570.
S
BS
8S 1503
BS
1504
BS
1560
1501-6S
8S 1501
8s 970
BS1133
BS 1414
BS 192
BS
240
referred
to
88
21
BSS362: 8
Standards publications
-
8/9/2019 BSI 5352-1981
31/32
MEE/l91
807 - 7
Issue Text affected
an:
of
Associatton
Amcl. No.
Associatron
Water Companies
lndustnes
Steel Casting Research and Trade
Britrsh
Gas
Civil
Engineers
Institution of Water Engineers and Scientists
National Brassfoundry Association
National Water Council
Society of
Engmeers
Institution of
Fittmgs
Manufacturers Association
Council of tronfoundry Associations
Greater London Council
lnstttution of Chemical
Assocration
Copper Tube
Shop
Research Association
British Shipbuilders
Cbmpe
Copper Development
Brmsh
Assocration
lndustnal Measuring and Control Apparatus
Manufacturers
Engrneermg
Contractors Association
British
Assocratron of Bronze and Brass Founders
British Chemical
Britrsh
Standard:
.
Amalgamated Union of Engineermg Workers
thus
rth
the preparation ofommrttee entrusted
echmcal
tirroctlv
represented on the
ollowmg,
were
kst.
together with the
astensk in the aboveith an
rgamzatrons
marked
ITEMA)
Water-tube Boilermakers Association
The
Associatron
Telecommumcatron Engineering and Manufacturmg
Socrety of Motor Manufacturers and Traders Limited
Associatton
Assocratron
Process Plant
MaterialsOrI Companies
Defence
Natronal Coal Board
Associatron
M inistry of
Machme Tool Industry Research
Amendmentsissued since publication
London Transport Executive
Shrppmg
lnstuution of Productron Engineers
Llovds Register of
lnstrtutron of Plant Engmeers
Mechamcal
Engineers
lnstrtutron of Gas Engineers
lnsth utron of
Associatron
Federation of Manufacturers of Construction Equipment and
Cranes
*Health and Safety Executive
of
Transport
Electncrty Supply Industry in England and Wales
*Engineering Equipment Users
Otvrson)
Department
(Marme
f
Trade
Laboratory)
Department
Engmeenng Natronal
Engtneermg)
*Department of Industry
(Mechamcalndustrv
Envrronment
Department of
Admmistratrons
Department of the
Oversea Governments and
or
Servrces
Crown Agents
Burlding
t
nstltutron
Assocratron Ltd.
Chartered
M anutacturms alve
lndustrv
Brmsh
Corporauon
Brmsh Steel
*Brmsh Steel
Assocratronrmsh Pump Manufacturers
Assocratron
ngrne
M anufacturers ombustron
Assocratron
Brmsh Internal
Brmsh
Gear Manufacturers
Corporatroll
(BEAMAl
Brmsh Gas
Assocratronllred
Manufacturers
lectrrcal
and
rmsh
Soctetv
u
rmsh
Compressed
Engrneers
echamcallectrical and
rmng,
ssocratron
of
ufHydraulic Equipment Manufacturers
Assoc:ratrun
Consultmy
Engineers
l
ssocratrrm
Commrtteeeclimcal
lltces
ssoc~.~lotl
iolluwmy:II*
eprescntatwcs from
consisfs
oftanr:srd was prepared,husBritish
rrectton
whoseommtrtec. undertsntlartlsngineertng echemcal
tskrn.
Cooperating organizations
The
actlon
delayin order that
the matter may be investigated and appropriate
BS Iw ithout
equarte.d
to notify
mbi&ty,
is
an
Inaccuracy orncounters
rftish
Standard,
sa
of aaking
hen
fxarson
whn.ny
mendmsnts
and withdrawn standards.
publiwtions,
revisions,
BSI
and gives details of newrmkrsofblcrlbln6
News which is available to
SI
rch month by
upplsmsnted
Cata/ogu4,
SI
he
Sin
SI
publications
ttlrx
826777.
Information on all
lf % .
BOB
221
telophorw
ovna.
nqulrv
Section at Mllton
SI
Dotails rs
available from
ulledrPLlJS.
rvlct
pdatlng
utomark
s tandards
indlvldurl
and
provfdron economic,
SI
rvfw.
pdoting
utomatk
editfenr
memfmantr
oratest owrfen of thrsIn
awartaln
that
thy
shwtd
tandards
rlthhsersofmpwtant thrtst
acfltlons.
lnd
mmdmmts or oflthsr ofuur
he
cnury,
by
when
rvlud,
re
rltirh Standards
tondardr.
rltbh
evhlon
of
applketlon.
orract
hrir
osponrlbla
for
re
tandards
Britith
1
contract. Users
scsssarv
provisions of
he
nclude
all
Standard
does not purport toritbh
equlremmts.
A
ontract
talex826777.or
nd
220012
s
&phone
nqulrlosumbar forheICE.
Kl4
Kevnen
SI, Linford Wood, Mllton
anager,
ubltcrtrona
addressad
to
the
EnquIrks should be
nignationc.
rsdr
y~ or11s.
mds
symbolsrcrssary details such
l
tendard,
he
mplsmrntmg
course
of
se,
in the