Model: PMU4E

Rotary Vacuum Pump Unit

Special Features:

Explosion proof motor

Properties:

Brake Horsepower Required

1.500

Mounting Type

Wheel

Stage Quantity

Intake Connection Quantity

Intake Connection Type

Unthreaded external

Discharge Connection Quantity

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

Cooling Medium

Air

Vacuum Rating

1.0 millitorr

Pump Quantity

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

NSN

4310-00-898-9959

Part Number

PMU4E

Description

Vacuum Pump Unit,rotary

CAGE

81349

An assembled unit consisting of a commonly mounted rotary vacuum pump(s), prime mover(s), and the necessary components to provide for a complete operation. It may include vacuum storage tank(s).

Part PMU4E NSN 4310-00-898-9959

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29904

FIIG:

A06700

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

0.0000lbs

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

F010612896

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

128000

UFC:

64870

LTL:

85.0

LCL:

85.0

WCC:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8414100000
SITC: 74311
End Use: Industrial engines
NAICS: 333912
USDA: 1

Freight Class: Vacuum pumps