PEX Insider

Product: 1A, 1/8″ Adjustable Angle Steam Radiator Air Valve
Manufacturer: Hoffman
Part Number: 401422
Weight: 0.5
Price: 19.95
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Description: Air Valve (non-vacuum) Float-type vent Adjustable port for true proportional venting v 6 port settings from slow (1) to fast (6) 1⁄8″ NPT angle connection Maximum operating pressure 11⁄2 psig (0.1 bar) (Drop away pressure – maximum pressure against which the vent can open). Maximum pressure 10 psig (0.7 bar)

Product: 1B, 1/4″ Adjustable Straight Convector Air Valve
Manufacturer: Hoffman
Part Number: 401425
Weight: 0.5
Price: 36.45
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Description: Air Valve (non-vacuum) Float-type vent Adjustable port for true proportional venting – 6 port settings from slow (1) to fast (6) Telescopic siphon tube 1⁄4″ NPT straight shank Maximum operating pressure 11⁄2 psig (0.1 bar)(Drop away pressure – maximum pressure against which the vent can open). Maximum pressure 10 psig (0.7 bar)

Product: 3, 1/8″ x 1/4″ Angle Steam Air Line Valve
Manufacturer: Hoffman
Part Number: 401419
Weight: 0.5
Price: 56.65
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Description: Steam Air Line Valve Thermostatic vent (no float) For Air Line or Paul Systems Inlet 1⁄8″ NPT, outlet 1⁄4″ NPT Maximum operating pressure 25 psig (1.7 bar)* to vacuum (Drop away pressure – maximum pressure against which the vent can open). Maximum pressure 25 psig (1.7 bar)

Product: 4, 1/2″ x 3/4″ Straight Steam Quick Valve
Manufacturer: Hoffman
Part Number: 401416
Weight: 0.5
Price: 37.85
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Description: Quick Valve Thermostatic air vent For steam systems and process equipment Operates on temperature change only; does not close against water Must be installed 6-10″ (150-250mm) above horizontal return and 18″ (450mm) above the boiler water line 1⁄2″ NPT female and 3⁄4″ NPT male straight shank Maximum operating pressure 25 psig (1.7 bar)*(Drop away pressure – maximum pressure against which the vent can open).) Maximum pressure 25 psig (1.7 bar)

Product: 40, 1/8″ Angle Steam Radiator Air Valve
Manufacturer: Hoffman
Part Number: 401440
Weight: 0.5
Price: 9.95
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Description: Air Valve (non-vacuum) Float-type vent For ordinary one-pipe system that doesn¦t require proportional venting Single non-adjustable port 1⁄8″ NPT angle connection Maximum operating pressure 6 psig (0.4 bar)(Drop away pressure – maximum pressure against which the vent can open). Maximum pressure 10 psig (0.7 bar)

Product: 41, 1/8″ Straight Steam Convector Air Valve
Manufacturer: Hoffman
Part Number: 401455
Weight: 0.5
Price: 17.45
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Description: Air Valve (non-vacuum) Single non-adjustable port For small steam systems Telescopic siphon tube with angle cut assures drainage 1⁄8″ NPT straight shank Maximum operating pressure 6 psig (0.4 bar)(Drop away pressure – maximum pressure against which the vent can open). Maximum pressure 10 psig (0.7 bar)

Product: 43, 1/4″ Straight Steam Convector Air Valve
Manufacturer: Hoffman
Part Number: 401458
Weight: 0.5
Price: 19.95
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Description: Air Valve (non-vacuum) Single non-adjustable port For small steam systems Telescopic siphon tube with angle cut assures drainage 1⁄4″ NPT straight shank Maximum operating pressure 6 psig (0.4 bar)(Drop away pressure – maximum pressure against which the vent can open). Maximum pressure 10 psig (0.7 bar)

Product: 45, 3/4″ x 1/2″ Straight Steam Convector Air Valve
Manufacturer: Hoffman
Part Number: 401461
Weight: 0.5
Price: 21.85
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Description: Air Valve (non-vacuum) Single non-adjustable port For small steam systems Telescopic siphon tube with angle cut assures drainage 1⁄2″ NPT female and 3⁄4″ NPT male straight shank Maximum operating pressure 6 psig (0.4 bar)(Drop away pressure – maximum pressure against which the vent can open). Maximum pressure 10 psig (0.7 bar)

Product: 4A, 1/2″ x 3/4″ Straight Steam Main Air Valve
Manufacturer: Hoffman
Part Number: 401413
Weight: 0.5
Price: 28.95
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Description: Air Valve (non-vacuum) Float-type thermostatic vent For residential or small one-pipe or two-pipe systems Single non-adjustable port 1⁄2″ NPT female and 3⁄4″ NPT male straight shank Install 6-10″ (150-250mm) above horizontal return and 18″ (450mm) above the boiler water line Maximum operating pressure 2 psig (0.13 bar)(Drop away pressure – maximum pressure against which the vent can open). Maximum pressure 10 psig (0.7 bar)

Product: 508, 1/8″ Straight Steam Convector Air Valve
Manufacturer: Hoffman
Part Number: 401475
Weight: 0.5
Price: 7.95
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Description: Air Valve (non-vacuum) Disc-type vent Built-in Check Valve For automatic venting of convectors and radiators Can be disassembled to clean without removing from line 1⁄8″ NPT straight shank Maximum steam pressure of 15 psig (1.0 bar)