MIL-HDBK-1022A
3.6.10.8 Combinations. A combination of these controls is
also possible. A typical use of these controls is on a
filter/separator for water slug shutoff and rate of flow
control.
3.6.11
Thermometers. Provide thermometers in Burner Fuel
No. 5 and No. 6 distribution piping systems at each loading
and receiving point and on the inlet and outlet of each
heater.
3.6.12
Fuel Hoses. Provide pressurized loading hoses and
connections complying with API Bull 1529. Provide
lightweight, flexible, non-pressurized off-loading hoses
constructed of nitrile rubber, rigid polyvinyl chloride (PVC)
helix, synthetic braiding, smooth bore, and corrugated outer
diameter. Provide non-pressurized hoses with a 65 psi (450
kPa) rating at 72 degrees F (22 degrees C) and 27 in Hg
(90 kPa) vacuum rating. Use sizes as required for design flow
rates. For hose flanges and nipples, use carbon steel or
brass, except at aviation turbine fuel issue points use brass,
stainless steel, or aluminum where metal parts contact the
fuel.
3.7
CONTROLS
3.7.1
Design Requirements. Automatic controls at any
facility may include temperature, pressure, fuel level and
pump controls, automatic flow controls, alarm and limit
switches, motor- and pilot-operated valves, and remote system
condition indicators. Other forms of automatic controls are
remote meter indication, electronic access control, data
logging, and application of computer techniques. Base the
selection of advanced automation and telemetry systems on a
study of the particular application with consideration of
possible economic justification, operational, and security
requirements.
3.7.2
Flow Controls. Where it is possible to achieve flow
rates which exceed equipment ratings, provide an adjustable
flow control valve on the outlet connection of each meter or
filter/separator. Use a self-actuating hydraulically operated
diaphragm control valve controlled by the pressure
differential across an orifice or a venturi in the main line.
60
Previous Page
