4, 1/2" x 3/4" VENT THERMOSTATIC STEAM Winters Needle Valves Series RS Sensors

Series RS Sensors

• 21⁄2" NPT side tapping provided for installation with close nipple

• Maximum power consumption

401422 - Air Valve (non-vacuum)

& mounting plate

4, 1/2" x 3/4" VENT THERMOSTATIC STEAM Winters Needle Valves Series RS SensorsModel 4 Part No. 401416 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 12" NPT female and 34" NPT male straight shank Maximum operating pressure 25 psig (1. 7 bar)* Maximum pressure 25 psig (1. 7 bar) To prevent steam vents from sputtering water or damage