ZurnAir GapFitting

Air Gaps are needed when installing drain lines to RPZ backflow preventers mounted in a horizontal position. They funnel minor relief valve discharge that can occur due to line pressure fluctuations or minor check valve fouling. Drain piping is easily attached to the threaded bottom.

Air gapplumbing Diagram

Browse by Catagory Boilers Burners Blowers/Motors Expansion Tanks Fittings Furnaces HVAC Oil Pex/Radiant Plumbing Pool Heaters Pumps Storage Tanks Thermostats/Controls/ Tools Water Boosters Water Heaters Water Filters Valves Venting

Air Gaps are needed when installing drain lines to RPZ backflow preventers mounted in a horizontal position. They funnel minor relief valve discharge that can occur due to line pressure fluctuations or minor check valve fouling. Drain piping is easily attached to the threaded bottom.

This 3/4 inch temperature and pressure relief valve is used in water heater and hot water storage tank applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 105,000 BTU/hr. It features a brass body with NPT male inlet and NPT female outlet connections, 8 inch extension thermostat with special thermo-bonded coating, and a test lever. It is ASME rated and CSA listed. The temperature relief is at 210 degrees F (99 degrees C), and the pressure relief is 150 psi (10.6 bar).