Operating Instructions and Parts Manual
Plunger Pumps
Formulas
Nozzles:
Impact Force (lbs.) = .0526 x GPM x √PSI
Nozzle # = GPM x 4000
GPM= Nozzle # x
PSI = (GPM/Nozzle #)
Horse Power:
GPM x PSI = Hydraulic HP
1714
GPM x PSI = EBHP
1457
EBHP x 1457 = GPM
PSI
EBHP x 1457 = PSI
GPM
HP loss due to altitude = 3% per 1000 FT
above sea level
Pump Speed and Flow:
Rated GPM = Desired GPM
Rated RPM
Desired RPM
Motor Pulley Ø = Pump Pulley Ø
Pump RPM
General Safety Information
WARNINGS
Gasoline Drive Pumps
The pump is designed to pump non-
flammable or non-explosive fluids.
These pumps are intended to pump
clean filtered water only.
Do not operate in or around an
explosive environment.
Always wear safety glasses
or goggles and appropriate
clothing.
Do not alter the pump from the
4
√ PSI
PSI
√4000
x 4000
2
Motor RPM
SRMV Series Pumps
Conversions
Gallons x 3.785412 = Liters
Gallons x 128 = Oz.
PSI x .06896 = Bar
Bar x 14.5038 = PSI
1 inches = 25.4 millimeters
Liters x .2642 = Gallons (US)
Ft. Lbs. x 1.356 = Newton Meters
Inch Lbs. x .11298 = Newton Meters
Newton Meters x .737562 = Ft. Lbs. (force)
Newton Meters x 8.85 = In. Lbs. (force)
Temperature = 1.8(C° + 17.78) = F°,.555(F°
- 32) = C°
1 U.S. Gallon of freshwater = 8.33 lbs.
1 PSI = 2.31 feet of water
1 PSI = 2.04 inches of mercury
1 Foot of water = .433 PSI
1 Foot of water = .885 inches of mercury
1 Meter of water = 3.28 feet of water
Kilograms x 2.2 = Lbs.
manufacturers design.
Do not allow children to operate
the pump.
Never point the high-pressure
discharge at a person, any part of
the body or animals.
Do not operate gasoline engines in a
confined area; always have adequate
ventilation.
Do not exceed the pump
specifications in speed or pressure.
Maximum water temperature is
140°F.