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one nipple and test cock
ZN415M-3NH-SB
The standard pressure relief settings is 175 psi
The cast-iron units are popular as they withstand extreme temperatures and poor weather holding up against snowplows
Watts 140X6-150210 1 - Part of the 140 Series mainline-siltfence one nipple and test cockThis 1 inch bronze automatic reseating temperature and pressure relief valve with a 6 inch thermostat is installed directly in tank tapings and is used in commercial applications to provide automatic temperature and pressure protection for hot water supply tanks and hot water heaters. It features a bronze body with NPT female inlet and NPT female outlet connections, thermo bonded coated thermostat, tamper resistant bonnet screws, automatic reseating