Watts 774-DOSY 3 - Part of the 774 Series Window Well Extension piston diaphragm assembly

piston diaphragm assembly

This Watts large are roof drain is engineered with epoxy coated cast iron for long life and durability

2 Body Material Brass Brand Watts Buy American Act Compliant YES Corrosion Resistant Coating Yes Disc Material Reinforced EPDM EAN 098268327625 Gauge Option No Gauge High Pressure Reduced Pressure Range 75 to 100 PSI High Pressure Reduced Pressure Setting 75 PSI Inlet Connection Size 3/4 IN Inlet Connection Type Union Joint Inlet Thread Type NPT Lead Free YES Maximum Operating Temperature-Fahrenheit 160 Maximum Working Pressure-BAR 20

Seepage Pan & Adjustable Extension FrameCaptures peripheral water and allows the drain head to be set to the exact finish floor elevation

Features Micro-bubble air separator with sweat connections

Watts 774-DOSY 3 - Part of the 774 Series Window Well Extension piston diaphragm assemblyThis 3 inch lead free double check valve backflow preventer assembly is designed to prevent the reverse flow of contaminated water of non potable quality 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 hazard applications and from other non toxic