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This 1 1/2 inch Press residential purge and balancing valve is used in heating applications to facilitate removal of air from heating zones on initial fill and to control water flow through a circulation loop
It features a bottom-loaded blowout-proof stem
ZB415-DP-3IP
two disc assemblies
ZN415-SZ1-4IG
Watts 530C-STD 3/4 - Part of the 530C Series Egress System This 1 1/2 inch PressThis 3 4 inch calibrated pressure relief valve is used in commercial, residential and industrial applications to protect against excessive pressure in systems containing water, oil, or air. It consists of a bronze body construction with 3 4 inch NPT threaded male inlet and 1 2 inch NPT threaded female (drain) outlet connections, stainless steel spring, brass bonnet, Buna N disc, and Buna N O ring. Series 530C has a calibrated adjustment feature for
