Watts Vacuum Relief Valve 1/2 in. Male NPT, Lead Free Brass, Protective Cap

This 1/2 in. lead free vacuum relief valve is suitable for low pressure steam and water service, and is ideal for use in domestic water heaters and supply tanks. 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. It consists of a lead free brass body construction with NPT male inlet connection, and a protective cap. Maximum working pressure is 200 psi.|Lead free construction|Low profile|Maximum temperature 250 degree|Maximum steam pressure 15 psi|This valve automatically allows air to enter into the piping system to prevent vacuum conditions|Ideal for use in domestic water heaters and supply tanks