Air Vents
Hoffman Specialty Steam Heating
List Price $96.00 $68.54 / eachSKU: HK100515 in stockHoffman Specialty 401422 model 1A radiator steam vent air valve (non-vacuum) with 1/8" male NPT angle connection and 10 psi maximum pressure. The maximum operating pressure against which the vent can open is 1.5 psi. This float-type vent has an adjustable port for true proportional venting - 6 port settings from slow (1) to fast (6). Explore More- Manufacturer : Hoffman Specialty
- Part Number : 401422
List Price $96.00 $68.54 / each- List Price $142.00 $98.31 / eachSKU: HK1007Ships within 2 business daysHoffman 1B steam radiator vent, float type, 1/4"NPT straight 1-1/2lb maximum, with adjustable 6 port settings. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401425
List Price $142.00 $98.31 / each - List Price $265.00 $183.46 / eachSKU: HK1010Hoffman 3 steam air line valve, thermostatic (no float), 1/8"NPT inlet x 1/4"NPT outlet 25lb maximum, for air line or Paul systems. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401419
- List Price $163.00 $116.31 / eachSKU: HK1015Ships within 2 business daysHoffman 4 steam quick valve, thermostatic (no float), 1/2"NPT female x 3/4"NPT male 25lb maximum, for Process equipment, operates on temperature change only, does not close against water, must be installed 6-10" above return and 18" above boiler water line. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401416
List Price $163.00 $116.31 / each - List Price $110.00 $78.23 / eachSKU: HK10203 in stockHoffman 4A air valve non-vacuum, float type, 1/2"NPT female x 3/4"NPT male 2lb maximum, for residential or small one or two pipe systems, must be installed 6-10" above return and 18" above boiler water line. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401413
List Price $110.00 $78.23 / each - List Price $56.00 $38.67 / eachSKU: HK102522 in stockHoffman 40 steam radiator vent, float type, 1/8"NPT angle 10lb maximum, single non-adjustable port for one pipe systems that do not require proportional venting. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401440
List Price $56.00 $38.67 / each - List Price $85.00 $60.92 / eachSKU: HK10309 in stockHoffman 41 convector steam vent, non-vacuum, float type, 1/8"NPT straight shank, 10lb maximum, single non-adjustable port. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401455
List Price $85.00 $60.92 / each - List Price $92.00 $65.77 / eachSKU: HK1035Ships within 2 business daysHoffman 43 convector steam vent, non-vacuum, float type, 1/4"NPT straight shank, 10lb maximum, single non-adjustable port. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401458
List Price $92.00 $65.77 / each - List Price $100.00 $71.31 / eachSKU: HK1040Ships within 2 business daysHoffman 45 convector steam vent, non-vacuum, float type, 1/2"NPT female x 3/4"NPT male straight shank, 10lb maximum, single non-adjustable port. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401461
List Price $100.00 $71.31 / each - List Price $149.00 $103.15 / eachSKU: HK10509 in stockHoffman 70A steam radiator vent, float type, 1/8"NPT angle 15lb maximum, single non-adjustable port for one pipe systems that do not require proportional venting. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401443
List Price $149.00 $103.15 / each - $0.00 / eachSKU: HK1052Hoffman 71A convector steam vent, non-vacuum, float type, 1/8"NPT straight shank, 15lb maximum, single non-adjustable port. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401470
- $0.00 / eachSKU: HK1052BHoffman 71B convector steam vent, non-vacuum, float type, 1/4"NPT straight shank, 15lb maximum, single non-adjustable port. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401464
- $0.00 / eachSKU: HK1052CHoffman 71C convector steam vent, non-vacuum, float type, straight shank, dual thread 1/2" female x 3/4" male 15lb maximum, single non-adjustable port. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401467
- List Price $267.00 $190.38 / eachSKU: HK10555 in stockHoffman 74 steam unit heater vent, non-vacuum, float type, 1/2"NPT female x 3/4"NPT male straight shank, 35lb maximum, single non-adjustable port. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401429
List Price $267.00 $190.38 / each - List Price $250.00 $178.62 / eachSKU: HK10608 in stockThe Hoffman Specialty 401434 is a model 75 main steam vent air valve (non-vacuum) for low pressure. This float-type thermostatic vent has a 1/2" NPT female and a 3/4" NPT male straight shank. The maximum steam pressure is 15 psi, and the maximum operating pressure (the maximum pressure against which the vent can open) is 3 psi. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401434
List Price $250.00 $178.62 / each - List Price $267.00 $190.38 / eachSKU: HK10653 in stockHoffman 75H steam main vent, non-vacuum, float type, 1/2"NPT female x 3/4"NPT male straight shank, 15lb maximum, single non-adjustable port. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401437
List Price $267.00 $190.38 / each - List Price $421.00 $300.46 / eachSKU: HK10708 in stockHoffman 76 steam main vent, vacuum valve, float type, 1/2"NPT female x 3/4"NPT male straight shank, 15lb maximum, for medium and large one-piipe vacuum systems, must be installed 6-10" above return and 18" above boiler water line. Explore More
- Manufacturer : Hoffman Specialty
- Part Number : 401432
List Price $421.00 $300.46 / each
