CONVERSIONS & FORMULAS
65
in
3
/rev x 16.387 = cm
3
/rev
cm
3
/rev x 0.06102 = in
3
/rev
gpm x 3.78 = L/min
L/min x 0.2642 = gpm
hp x 0.7457 = kW
kW x 1.341 = hp
lb-ft x 1.3567 = Nm
Nm x 0.7376 = lb-ft
lbs/in
2
(psi) x 0.06895 = bar
bar x 14.50 = lbs/in
2
(psi)
lbs/in
2
(psi) x 6.895 = kPa
kPa x 0.1450 = lbs/in
2
(psi)
lb x 0.4536 = kg
kg x 2.205 = lbs
lb x 4.448 = N
N x 0.2248 = lbs
in
3
x 16.387 = cm
3
cm
3
x 0.06102 = in
3
in
2
x 6.452 = cm
2
cm
2
x 0.1550 = in
2
in x 25.4= mm
mm x 0.03937 = in
degree F-32 =
°
C
1.8 x
°
C+32 =
°
F
1.8
cSt x 1.0 = mm
2
/sec
mm
2
/sec x 1.0 =
cSt
SSU = cSt x 4.25 + 14
20 cSt = 99 SSU
pressure(psi) x displacement (in
3
/rev)
2
p
x mech. eff.
rpm x (in
3
/rev) x (psi)
395934 x overall eff.
rpm x (in
3
/rev) x volumetric eff.
231
231 x flow rate(U.S. gpm) x volumetric eff.
displacement (in
3
/rev)
pressure(psi) x displacement (in
3
/rev) x mech. eff.
2
p
rpm x (in
3
/rev) x (psi) x overall eff.
395934
pressure(bar) x displacement (cm
3
/rev)
20
p
x mech. eff.
rpm x (cm
3
/rev) x (bar)
600000 x overall eff.
rpm x (cm
3
/rev) x volumetric eff.
1000
1000 x flow rate (Lpm) x volumetric eff.
displacement (cm
3
/rev)
pressure(bar) x displacement (cm
3
/rev) x mech. eff.
20
p
rpm x (cm
3
/rev) x (bar) x overall eff.
600000
DEFINITION & UNIT
displacement
flow
power
torque
pressure
weight
force
volume
area
length
temperature
viscosity
FLUID POWER FORMULAS
Pump input torque lbs . in.
Pump input power hp
Pump output flow U .S. gpm
Fluid motor speed r pm
Fluid motor torque lbs . in.
Fluid motor power hp
(metric)
Pump input torque Nm
Pump input power kW
Pump output flow Lpm
Fluid motor speed r pm(min
-1
) (tr/mn)
Fluid motor torque Nm
Fluid motor power kW
www.comoso.com
