Übersicht und umrechnung von physikalischen größen - ifm fibel (2011)
TRANSCRIPT
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9.81 x 104 9.81 x 10-2 9.81 x 10-1 9.81 x 102 10 104 7.36 x 102 1.42 x 101 1
1 PA = 1N/m2
1 MPA = 1MN/m2
1 bar
1 mbar
1 mWS
1 mmWS
1 mmHG (Torr)
1 psi
1 kp/cm2 (at)
N/m2 MN/m2 (Torr) (at)
Pa MPa bar mbar mWS mmWS mmHG psi kp/cm2
Overview pressure units
Definitions:
P = F/Aat = technic atmospherekp/cm2 = kilopond / square centimeterPA = PascalMPA = Mega-PascalN/m2 = Newton / square meter
MN/m2 = Mega-Newton / square meterbar = barmbar = millibarmWS = meter water columnmmWS = millimeter water columnmmHG = millimeter mercury column at 0 Cpsi = english pound / square inch
1 10-6 10-5 10-2 1.02 x 10-4 1.02 x 10-1 7.5 x 10-3 1.45 x 10-4 1.02 x 10-5
106 1 10 104 102 1.02 x 105 7500 145 10.2
105 10-1 1 103 10.2 1.02 x 104 750 14.5 1.02
102 10-4 10-3 1 1.02 x 10-2 10.2 7.5 x 10-1 1.45 x 10-2 1.02 x 10-3
9.81 x 103 9.81 x 10-3 9.81 x 10-2 9.81 x 101 1 103 7.36 x 101 1.42 10-1
9.81 9.81 x 10-6 9.81 x 10-5 9.81 x 10-2 10-3 1 7.36 x 10-2 1.42 x 10-3 10-4
1.33 x 102 1.33 x 10-4 1.33 x 10-3 1.33 1.36 x 10-2 1.36 x 101 1 1.93 x 10-2 1.36 x 10-3
6.89 x 103 6.89 x 10-3 6.89 x 10-2 6.89 x 101 7.03 x 10-1 7.03 x 102 5.17 x 101 1 7.03 x 10-2
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used in the electronic ind.steel-panzerrohr thread Pg DIN 40 430 - Pg 21 Pg 7 - Pg 48
MM
DIN13 - M30DIN13 - M20x1
1 - 68 mm1 - 1000 mm
commoncommon (fine thread)
DIN ISO 228-G1 1/2 (inside)DIN ISO 228-G1 1/2 A (outside)
name
metric ISO-thread
sign example
Gpipe thread, zylindrical 1/8 - 6 inch thread is not sealing
UNC
NPTF-thread with 1/2 inchdiameter,14 pitch/inch (dry sealing)
size used for
Thread overview
1/4 - 28 UNF-3A
NPTF
Unified Coarse Thread
American standart-tube-thread(conical)
Unified Fine Thread
American conicalfine tube thread
UNF
NPT
1/4 - 20 UNC-2A
3/8 - 18 NPT
1/2 - 14 NPTF (dryseal)
NPT-thread with 3/8 inchdiameter,18 pitch/inch
UNF-thread with 1/4 inchdiameter,28 pitch/inch, class 3A
UNC-thread with 1/4 inchdiameter,20 pitch/inch, class 2A
used in following countries
USA, GB, CDN
USA, GB, CDN
USA
USA
name sign example size
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Conversion factors
Temperature
F = (C x 1.8) + 32C = (F - 32) / 1.8
0 K = -273 C0 C = 273 K
Example
T = t + 273T = 20 (C) + 273 = 293 K
Air
844 l/kg (20 C)1.18 kg/m3 (20 C)
Weight
1 gr = 0.0353 oz1 kg = 2.2046 lb1 t = 1.1023 short tons1 t = 0.9842 long ton
1 oz = 28.350 gr1 lb = 16 oz = 0.4536 kg1 short ton = 0.9072 t1 long ton = 1.0161 t
Lenght
1 inch = 1" = 25.4 mm
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Conversion factors
Volume
1 cm3 = 0.0610 in3
1 dm3 = 0.0353 ft3
1 m3 = 1.3080 yd3
1 l = 0.2642 US gal
1 ft3 = 0.0283 m3
1 yd3 = 27 ft3 = 0.7646 m3
1 US gal = 3.7854 l
1 m3 = 1000 l1 cm3 = 1000000 ml1 dm3 = 1 l
1
3
5
10
6 bar 12 bar
Air loss, Energy loss and annual costs
1.2 l/s0.3 kWh144 Euro
1.8 l/s1.0 kWh480 Euro
11.1 l/s3.1 kWh
1488 Euro
20.8 l/s12.7 kWh6096 Euro
30.9 l/s8.3 kWh
3984 Euro
58.5 l/s33.7 kWh
16176 Euro
123.8 l/s33.0 kWh
15840 Euro
235.2 l/s132.0 kWh63360 Euro
hole (mm)
10 m3/h = 1 kWhEuro / kWh = 0.06operating hours / year = 8000
source: Druckluft effizient / VDIhttp://www.durchluft-effizient.de/e/index.php
Lenght
1 mm = 0.0394 in1 cm = 0.3937 in1 m = 1.0936 yd1 km = 1000 m = 0.6214 mile
1 in = 25.4 mm1 ft = 12 in = 0.3048 m1 yd = 3 ft = 0.9144 m1 mile = 1760 yd = 1.6093 km
1 inch = 1" = 25.4 mm
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Category
1
2
3
4
5
6
Particulate materialsize (m)
particle density(mg/m3)
pressure dewpoint
water content(mg/m3)
quality of oil (max.concentration mg/m3)
0.1 0.1 -70 C 3 0.01
1 1 -40 C 120 0.1
5 5 -20 C 880 1
15 8 +3 C 6000 5
40 10 +7 C 7800 25
+10 C 9400
Particles Water Oil
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ifm electronic the namefor position sensors and objectrecognition, fluid sensors anddiagnostic systems, bus systems,identification and control systems
worldwide.With subsidiaries and representatives inmore than 70 countries ifm electronic standsfor unparalleled customer service, above-averagequality and extraordinary innovation.
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www.ifm.com
http://www.ifm.com/http://www.ifm.com/