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You searched for: Hoffman Steam Traps Radiator Valves and Vent Valves
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Hoffman Radiator Vent Valves


Model 1A Part No. 401422

  • Air Valve (non-vacuum)

    • Float-type vent

    • Adjustable port for true proportional venting

  • 6 port settings from slow (1) to fast (6)

    • 1.8" NPT angle connection

    • Maximum operating pressure 11.2 psig (0.1 bar)*

    • Maximum pressure 10 psig (0.7 bar)
















Selecting and Sizing Steam Traps
Selection Guidelines – Steam Vents
Item IDDescriptionPkg QtyUnit SizeQuantity
401416
HOFFMAN 4 STM THM VENT VALVE11
401422
HOFFMAN 1A STM RAD VENT VALVE11
401432
STM VNT MDL#76 1/2x3/4IN M NPT11
401434
HOFFMAN 75 STEAM VENT VALVE11
401440
HOFFMAN 40 STM RAD VENT VALVE11
401443
HOFFMAN 70A STM RAD VENT VALVE11
401446
HOFFMAN 62 VACUUM BREAKER11
401482
HOFFMAN 791 WATER VENT VALVE11
401488
HOFFMAN 79 WATER VENT VALVE11
401536
HOFFMAN 17C 1/2IN ANGLE RAD TRAP11
401545
17C 1/2IN SWIVEL RADIATOR TRAP11
401626
HOFFMAN FT015H 1-1/2IN F&T TRAP11
402002
8C-A-125 1/2IN ANGLE RAD TRAP11
402003
8C-A-125 3/4IN ANGLE RAD TRAP11
402004
8C-S-125 3/4IN STRT RAD TRAP11
402006
HOFFMAN 17C 3/4IN ANGL RAD TRAP11
402011
HOFFMAN 17C 3/4IN STRT RAD TRAP11
404200
HOFFMAN FT015H 3/4IN F&T TRAP11
404210
HOFFMAN FT015H 1IN F&T TRAP11
404212
HOFFMAN FT030H 1IN F&T TRAP11
404220
HOFFMAN FT015H 1-1/4IN F&T TRAP11
404324
B1015A 3/4IN 15psi BUCKET TRAP11
600084
HOFFMAN MODULE FOR STEAM TRAP11
600129
HOFFMAN 55FT 3/4IN SERVICE PK11