NATO Stock Number
4310-00-898-9959
Sold in multiples of
1 EA
DEMIL
NO
Brake Horsepower Required
1.500
Mounting Type
Wheel
Stage Quantity
1
Intake Connection Quantity
1
Intake Connection Type
Unthreaded external
Discharge Connection Quantity
1
Discharge Connection Type
Unthreaded external
Drive Connection Type
Single strand v-belt
Body Surface Treatment
Any acceptable
Overall Length
50.000 inches
Overall Height
36.000 inches
Overall Width
50.000 inches
Current Type
Ac
Cooling Medium
Air
Vacuum Rating
1.0 millitorr
Pump Quantity
1
Pump Body Material
Any acceptable
Specific Gas For Which Designed
Oxygen
Pumping Element Type
Sliding vane and rotary piston
Intake Connection Outside Diameter
1.000 inches
Air Displacement Rate
14.0 cubic feet per minute in free air
System Design
Corrosive
Prime Mover Type
Electric motor
Current Rating In Amps
4.8 and 2.4
Voltage In Volts
220.0 and 440.0
Phase
Three
Frequency In Hertz
60.0
Functional Description
The pmu-4e, power driven rotary vacuum pump is an independent, self-contained unit; it consists of a rotary vacuum pump driven by an explosion proof electric motor and explosion proof control equipment mounted on a four castered mobile base with attached handle for manually moving the equipment; a six foot length of flexible servicing hose with storage tank adapter is supplied for use in connecting the vacuum pump to the vacuum pump to the storage tank being evacuated; the vacuum pump is designed primarily for evacuating the vacuum tight annular insulating space of liquid oxygen or nitrogen storage tank to an absolute pressure of five microns or less; the unit is constructed for that repairs may be accomplished by operating personnel
Entry Date
85-08-15
Reference Data And Literature
Af to. 35m12-2-12-1
Nondefinitive Specification/std Data
Pmu/4e type
