MIL-PRF-52109H
a. Type I, Size 1 - 50 gallons per minute (GPM) with a total dynamic head of 100 feet.
b. Type I, Size 2 - 100 GPM with a total dynamic head of 80 feet.
c. Type II, Size 1 - 65 GPM with a total dynamic head of 50 feet.
d. Type II, Size 2 - 125 GPM with a total dynamic head of 50 feet.
3.3.3 Pump priming. The pump assembly shall prime automatically, after initial filling of
the case, and deliver not less than 85 % of rated flow (see 3.3.2) in not greater than 2 minutes
when operating at a static suction lift equivalent to 10 feet; at sea level and atmospheric
conditions of 29.92 inches of mercury, using water with a specific weight of 62.3 pounds per
cubic foot at 68 F.
3.3.4 Pump characteristics. All pumps shall contain drain plugs. All threaded parts shall
conform to ASME B 1.1 or ASME B 1.20.3, as applicable. Mechanical seals and wear rings
shall be suitable to intended service (see 1.2). The Type I, Size 1 pumping assembly shall be
provided with the accessories specified in the Appendix to this specification.
3.3.5 Controls.
3.3.5.1 Diesel engine. All pumping assemblies, except Type II, Size 1, Class 1 (EMD),
shall be provided with an industrial diesel engine capable of operating on a wide range of
military fuels to include JP-8, JP-5, and diesel fuels. The engine shall be furnished with, but not
limited to, the following accessories:
a. Throttle control assembly to permit manual adjustment and locking at any speed up to
the manufacturers maximum recommended speed. The control shall be labeled to indicate the
start and stop positions with a directional arrow to indicate increased speed.
b. A fuel tank shall be furnished with sufficient capacity for at least 2.5 hours of
continuous operation at the rated load. The tank shall include a hand-operated fuel shutoff valve
attached directly to the tank. The shutoff valve shall be provided with an arrow showing the
directions of valve operation. A corrosion-resistant, face-plate shall be mounted on or near the
fuel shutoff valve and shall be marked for "ON" and "OFF" positions.
c. The starting system shall be by either hand crank or recoil start. Secure storage for any
hand crank shall be provided. A low temperature assist starting system may be provided if
necessary for cold weather starting (see 4.6.2). If external electrical power is needed for any low
temperature assist starting system, then the pump assembly shall be provided with a Type 1
female receptacle per STANAG 4074 (see 6.5), which shall be used to receive external power.
There is no requirement for the pumping assembly to supply its own electrical source.
d. All diesel engines shall be furnished with a spark arresting muffler located away from
the fuel system and any other flammable pumping assembly components. The engine shall start
6
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business