Übersicht und Umrechnung von physikalischen Größen - ifm Fibel (2011)

7/27/2019 bersicht und Umrechnung von physikalischen Gren - ifm Fibel (2011)

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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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Übersicht und Umrechnung von physikalischen Größen - ifm Fibel (2011)

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