41, 1/8" NPT STRAIGHT STEAM CONVECTOR AIR VALVE RVW61 • Thermostatic air vent

• Thermostatic air vent

ASME Section IV capacity certified bronze safety relief valve for protection of hot water heating boilers

• ASME Section IV Heating Boilers

000 and 10

Series 101-A

41, 1/8" NPT STRAIGHT STEAM CONVECTOR AIR VALVE RVW61 • Thermostatic air ventConvector Steam Vents Model 41 Part No. 401455 Air Valve (non vacuum) Single non adjustable port For small steam systems Telescopic siphon tube with angle cut assures drainage 18" NPT straight shank (41), 14" NPT straight shank (43), 12" NPT female, and 34" NPT male straight shank (45) Maximum operating pressure 6 psig (0. 4 bar)* Maximum pressure 10 psig (0. 7 bar) *Drop away pressure (maximum pressure against which the vent can open). Hoffman