Pace PAI - FIGURE 164 - Steam Piping for VIFB

SECTION 3 - HANDLING, STORAGE, AND INSTALLATIONPACE │ Installation & Assembly Manual
Issue Date: 07/03/2018
100
Form PA102.20-N1
Figure 164 - Steam Piping for VIFB
LD09634
(STEAM PRESSURE BELOW 15 PSIG (103.4 KPa)
STEAM MAIN
DRIP TRAP
STEAM MAIN
VACUUM BREAKER CHECK VALVE
1/2 in (12.7mm)-15"
AIR FLOW
VIFB
COIL
STRAINER
AIR VENT TO ATMOSPHERE ON
OPEN GRAVITY RETURN SYSTEM
ONLY. MINIMUM 1 in (25.4mm) PIPE
T
T
STRAINER
RETURN MAIN
CHECK
VALVE
COMBINATION FLOAT
AND THERMOSTATIC
TRAP
FLEXIBLE CONNECTOR
8 in (203.2mm)
8 in (203.2mm) MIN
NON-VENTING TRAPS
(STEAM PRESSURE BELOW 15 PSIG (103.4 KPa)
1/2 in (12.7 mm)
THERMOSTATIC
TRAP FOR AIR
REMOVAL
NON-VENTING TRAP
NON-VENTING TRAP
CONDENSATE
FLOW
CONDENSATE
FLOW
3/4 in (19.1mm)
AUTOMATIC
AIR VENT
(STEAM PRESSURE ABOVE 15 PSIG (103.4 KPa)
VACUUM BREAKER CHECK
VALVE 1/2 in (12.7 mm)- 15"
STEAM MAIN
DRIP TRAP
STEAM
MAIN
STRAINER
1/4 IN (6.4 MM)
PETCOCK
CRACKED OPEN
FOR CONTINUOUS
AIR VENTING
T
T
CHECK
VALVE
STRAINER
INVERTED BUCKET TRAP
RETURN MAIN
FLEXIBLE CONNECTOR INSTALLED PARALLEL
TO COIL HEADER AND AS CLOSE AS POSSIBLE
TO COIL CONDENSATE CONNECTION.
AIR FLOW
8 in (203.2mm)
8 in (203.2mm) MIN
VIFB
COIL
12 in MIN.
(304.8 mm)