The engineering unit conversion table
Published on:2015-1-26 9:56:00 Hits:
Unit of length
1 in = 25.4 mm
1 ft = 0.3048 m
1 micron = 0.001 mm
Area units
1 in2 = 6.45 cm2
1 ft2 = 0.093 m2
Volume units
1 litre = 0.001 m3
1 cu.ft. = 0.0283 m3
1 cu.in. = 16.39 cm3
1 fluid oz. (Imp) = 28.41 mL
1 fluid oz. (Us) = 29.57 mL
1 gal (imp) = 4.546 L
1 gal (us) = 3.79 L
Temperature Unit
(° F-32) X5 / 9 = ℃
K-273.15 = ℃
Power and energy units
1 Nm = 1 J
1 kgm = 9.807 J
1 kW / hr = 3.6 MJ
1 lbft = 1.356 J
Power units
1 Nm / sec = 1 W
1 lbft / sec = 1.356 W
1 kgm / sec = 9.807 W
1 Joule / sec = 1 W
1 H.P. (imp) = 745.7 W
Mass units
1 lb = 453.6 g
1 tonne = 1000 kg
1 ton (imp) = 1016 kg
1 ton (us) = 907.2 kg
Flow is calculated
Q = Cv value X 984 =
Kv values X 1100 Cv = So ÷ 18
Power units
1 kgf = 9.81 N
1 lbf = 4.45 N
1 kp (kilopound) = 9.81 N
1 poundal = 138.3 mN
1 ton force = 9.964 kM
Torque Units
1 kgm = 9.807 Nm
1 ft. Poundal = 0.0421 Nm
1 in lb = 0.113 Nm
1 ft lb = 1.356 Nm
Pressure units
1 psi = 6.89 kPa
1 kgf / cm2 = 98.07 kPa
1 bar = 100 kPa
1 bar = 14.5 psi
1 mm mercury = 133.3 Pa
1 in mercury = 3.39 kPa
1 Torr = 133.3 Pa
1 ft water = 0.0298 bar
1 bar = 3.33 ft water
1 atmosphere = 101.3 kPa
1 cm water = 97.89 Pa
1 in water = 248.64 Pa
Conversion Table
1psi = 6.895kPa = 0.07kg / cm2 = 0.06895bar = 0.0703atm 1standard atmosphere = 14.7psi = 101.3kPa = 1.01325bar
1kgf / cm2 = 98.07kPa = 14.22psi = 28.96ins mercury
1m3 = 1000000cm3
1cu ft / min = 28.3 l / min
1Pa = 1N / m2
1ft lb = 0.13826kgm = 1.356 Nm
1 L = 1000cm3 = 1.7598pint = 1000000mm3
1 tonne = 1000 kg = 0.984 ton = 2204.6 lb
Flow
Cv value = water flow (US gal / min) at 60 ° F, flowing through the differential pressure valve for flow value of 1 psi and the results of it.
Kv value = water flow (L / min) at 20 ℃ under flowing through differential pressure flow setpoint 1 kgf / cm2 and the results of the valve.
So = effective cross-sectional area (mm2)
Q = flow rate (Ng / min)
STP = standard temperature and pressure (0 ℃ 101.3kPa and absolute pressure)
NTP = normal temperature and pressure (20 ℃ 101.3kPa and absolute pressure)
MSC = metric standard conditions (15 ℃ and 101.3kPa absolute pressure)
AMR = temperature: 20 ℃ and relative humidity: 65%
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