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This 1 inch boiler pressure relief valve is used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment
Constructed from durable materials suitable for rooftop environments
ZN415C-4IG
flanged end connections
Watts 774DCDA-OSY-GPM 12 - Part of the 774DCDA Series silt-fence-selector This 1 inch boiler pressureThis 12 inch double check detector backflow preventer assembly with gallons per minute meter prevents the backflow of fire protection system substances from being pumped or siphoned into the potable water supply. It consists of a compact construction and short lay length, ideal for retrofit installations. It features a lightweight stainless steel body, thermoplastic and stainless steel check valves, and low head loss. It can be installed in a