MIL-P-17861F
3.5.1 Pump. The pump shall be of the self-priming, radial flow, single
suction, single stage, centrifugal-type referred to commercially as contractor
pumps . Each pump shall consist of a casing, impeller, seal, connections, and a
diffuser ring or air separation chamber. The impeller shaft may be an extension
of the engine crankshaft except for 4.0 inch and larger pumps, which shall be
furnished with a separate bearing-mounted impeller shaft, connected to the
engine crankshaft by a flexible-coupling.
3.5.1.1 Type I pump . Type I pump shall be designed and constructed to meet
the requirements of the CPB Contractors Pump Manual for M rated pumps, as well
as all applicable requirements specified herein. Type I pump shall be equipped
with an open or semi-open impeller designed to pass solids equal to 10 percent
by volume and equal to 25 percent of the nominal inlet diameter of the pump.
3.5.1.2 Type III pump. Type III pump shall be designed and constructed to
meet the requirements of the CPB Contractors Pump Manual for MT rated pumps, as
well as all applicable requirements specified herein. Type III pumps shall be
similar to type I pumps except they shall be designed to incorporate a removable
end plate which shall provide ready and easy access to the interior as well as
Type III pumps shall be designed to
to the impeller for clean-out purposes
pass spherical solids in the sizes shown in table II.
TABLE II.
Solids passing sizes for type III pumps.
3.5.1.3 Type IV pump . Type IV pump shall be designed and constructed to
meet the requirements of the CPB Contractors Pump Manual for MTC rated pumps as
well as all applicable requirements specified herein. Type IV pumps shall be so
designed as to incorporate easy access to the impeller for quick clean out
purposes. Type IV pumps shall be designed to pass spherical solids in the sizes
shown in table III.
7
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business