4 abbreviations – Flowserve Worthington WXB User Manual
Page 49
WXB USER INSTRUCTIONS ENGLISH - 07/14
Page 49 of 51
11.4 Abbreviations
Quantity
ISO unit
ISO unit
abbreviation
Multiplication
Factor
1
US unit
US unit
Abbreviation
Area
square metre
square centimetre
m²
cm²
10.764
0.155
square feet
square inch
ft²
in.²
Capacity or
Flow rate
Cubic
metre/hour
m³/h
4.4033
US Gallons/
minute
US gpm
Force
Newton
N
0.2248
pound.force
lbf
Head
metre
m
3.28084
feet
ft
Heat Energy
kilojoule
kJ
0.9478
British
thermal unit
Btu
Length
metre
millimetre
micrometre
m
mm
µm
3.28084
0.03937
0.00003937
feet
inch
inch
ft
in.
in.
Mass
kilogram
gram
kg
g
2.20462
0.035274
pounds
ounces
lb.
oz.
Moment of
Interia
kilogram
square metre
kg.m²
23.73
pounds
square feet
lb.ft²
Noise
4
decibel
dBA
Power
kilowatt
kW
1.34102
horsepower
hp
Pressure
2
bar
bar
14.5
pounds/in.²
psi
Rotational
Speed
revs per minute
r/min
Stress
Newton/mm²
N/mm²
145.0
pounds/in.²
psi
Temperature
degrees
Celsius
°C
(1.8 x °C) + 32
degrees
Fahrenheit
°F
Torque
Newton.metre
Nm
0.7376
pound.feet
lbf.ft
Unbalance
gram millimetre
g.mm
0.001389
ounce-inch
oz-in.
Velocity
metre/second
millimetre/second
m/s
mm/s
3.28084
0.03937
feet/second
inches/second
ft/sec
in./sec
Vibration
3
millimetre/
second
mm/s
0.03937
inches/
second
in./sec
Viscosity
square millimetre/
second or centiStoke
cSt
Volume
cubic metre
litre
m³
l
264.2
33.81
US Gallons
fluid ounce
US gal.
Fl.oz.
1
multiply the ISO unit by the multiplication factor to obtain US units
2
where pressure is not stated to be absolute it is gauge
3
where not stated to be peak it is r.m.s.
4
sound pressure level LpA, re 1m - 20microPa, or sound power level LwA re 1 pW when sound power is
applicable