MIL-PRF-52109H
3. REQUIREMENTS
3.1 First article. When specified (see 6.2), a sample shall be subjected to first article
inspection in accordance with (IAW) 4.1.1.
3.2 Materials. The materials selected for construction are the responsibility of the
contractor. The materials shall be of sufficient durability to meet all the performance
requirements as specified herein. Lead, zinc, or cadmium plating shall not be used. Type I
pumping assemblies may be constructed of any other materials suitable for fuel pumping service,
with the exceptions that the use of brass, bronze and other copper bearing alloys shall not be
permitted in contact with pumpage (fuel). Type II pumping assemblies may be constructed of
any other materials suitable for drinking water pumping service. The finished Type II pumping
assembly shall contain no materials or substances that might leak or disintegrate and cause the
pumped water to become non-potable. The materials shall have no adverse effect on the health
of personnel when used for its intended purpose. The lines and all surfaces that contact potable
water shall conform to the applicable Federal regulations for use with potable water.
3.2.1 Deterioration, prevention, and control. The manufacturer shall select materials
capable of meeting all the operational and environmental requirements specified herein. The
pumping assemblies shall be fabricated from compatible materials, inherently corrosion resistant
or treated to provide protection against corrosion and deterioration during storage and
operational conditions experienced.
3.2.1.1 Dissimilar metals. Dissimilar metals shall not be used in intimate contact with
each other unless protected against galvanic corrosion.
3.2.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered,
or environmentally preferable materials should be used to the maximum extent possible provided
that the material meets or exceeds the operational and maintenance requirements, and promotes
economically advantageous life cycle costs. Used, rebuilt, or remanufactured components shall
not be incorporated into the pump assembly.
3.3 Operational and Design Requirements.
3.3.1 Hydrostatic pressure. The pumps shall withstand an internal hydrostatic pressure of
80 pounds per square inch (psi) for Type II, and 100 psi for Type I, without rupture or distortion
to any component and without leakage through the pump, fittings, piping, or joints.
3.3.2 Capacity. The pumps shall meet the rated flow capacities indicated below using the
appropriate liquid at standard conditions, as specified by the Hydraulic Institute ANSI/HI 1.1-1.6
Centrifugal Pumps and Tests.
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