TM 5-810-15
j. Deaerator vent. The DA vent piping provides
piping must be designed to pass the required flow
the means by which the entrained gases removed by
without adversely effecting safety valve operation.
l. Miscellaneous water systems. Miscellaneous
the DA are vented to the atmosphere. The system
will contain an orifice sized for the venting
water systems include service and potable water
requirements determined from operating conditions
and ash sluice water. The service and potable water
and DA design.
system will provide water for the various cooling
k. Safety valve vents. Safety valve vent piping
requirements in the plant, such as air compressor
provides for the safe discharge of fluids from safety
intercoolers and aftercoolers, and will provide
valves. Water safety valves require piping from the
water for personnel usages. The ash sluice water
safety valve outlet to drain. Air and gas safety
system is required when a hydraulic bottom ash
valves require piping from the safety valve outlet to
system is used. Ash sluice water provides the water
atmosphere or to a safe location. Steam safety
for ash jet pumps and bottom ash hopper filling and
valves require piping from the safety valve outlet to
sealing water requirements.
m.
Miscellaneous gas systems. Miscellaneous
a safe location that is outside the building. Steam
safety valve vents also require provisions for
gas systems include nitrogen system and coal
removal of water condensed under the safety valve
bunker and pulverizer inerting systems. The
seat and in the vent piping itself. Safety valve
8-4
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