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10″ sump depth in a 12″ × 12″ cast-iron body
This 1 1/4 inch lead free 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
Specifications Brand Watts Diameter 20 IN Inlet Connection Size 1 IN Inlet Connection Size-Metric 25 MM Inlet Connection Type Male Threaded Lead Free YES Maximum Operating Temperature-Fahrenheit 240 Maximum Working Pressure-PSI 150 Mount Type Free Standing Tank Acceptance 40 Gallons Specification Sheet - DETA
Product Codes: Z1901-RL2
Watts 757DCDA-DOSY-CFM 4 - Part of the 757DCDA Series ADA Pad 10″ sump depth in aThis 4 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non potable quality, but not toxic, from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross connections identified as non health hazards such as on fire