11
SUGGESTED PIPING FOR MODULAR STEAM BOILERS - PUMPED RETURN
CHECK
VALVE
BLOWOFF
VALVE
SOLENOID
VALVE
(OPTIONAL)
F & T TRAP HIGH
LEVEL "SPILL"
(DO NOT USE WITH
CONDENSATE PUMP)
TO
RECEIVER
TANK
STEAM MAIN
TRAP
PUMPED RETURN
TO
SYSTEM
FROM
RECEIVER
TANK
FROM
RECEIVER
TANK
STOP
VALVE
TO
RECEIVER
TANK
STOP
VALVE
Figure #9
RETURN
GRAVITY RETURN
2"
TO
SYSTEM
STOP
VALVE
BLOWOFF
VALVE
STOP
VALVE
CHECK
VALVE
(OPTIONAL)
STEAM MAIN
WATER
LINE
28"
Figure #10
SUGGESTED PIPING FOR MODULAR STEAM BOILERS - GRAVITY RETURN
SUPPLY AND RETURN PIPING
