UFC 3-460-03
21 JANUARY 2003
Chapter 3
MECHANICAL SYSTEMS
3.1. General Information. This chapter covers receiving, offloading, fill stand, pipelines, and gas
station facilities. The components common to each of these systems, as well as the components specific
for each system, are described in this chapter. These facilities must have an appropriate system to
contain spills. Contact the base environmental coordinator for applicable environmental requirements
and refer to MIL-HDBK-1022A for design criteria. Typical applications include direct offloading
systems and stripper pumps.
3.2. Pumps. In mechanical systems, pumps are used for unloading, transferring, and dispensing fuels.
There are several types of pumps used in fueling systems.
3.2.1. Rotary positive displacement pumps (Figure 3.1) or selfpriming centrifugal pumps are used
where suction lifts are high or where the pump may frequently lose prime. These pumps must have
an internal pressure relief or a pressure relief must be installed on the downstream side. Positive
displacement pumps will not be used as product issue or transfer pumps.
Figure 3.1. Rotary Vane Pump.
17
Previous Page
