Watts ETSX-110 - Part of the ETX Series Z100F-3NH This valve automatically allows air

This valve automatically allows air to enter into the piping system to prevent vacuum conditions that could siphon water from the system and damage water equipment

ZB451B-2NH-B-G

340 (French)

and 1 1/4 inch female meter thread swivel inlet by 1 inch NPT female threaded union outlet

Watts ETSX-110 - Part of the ETX Series Z100F-3NH This valve automatically allows airThis non potable water expansion tank is designed for use in commercial and residential closed loop hydronic heating system piping to control the thermal expansion of hot water and maintain system pressure below the relief setting of the relief valve. This carbon steel tank is pre charged at 12 psi, tank volume is 62. 0 gallons and features a durable expansion membrane that prevents contact of the water with the air in the tank. This rugged butyl