The Zurn Wilkins 310D Single Detector Check Valve with OS&Y gate valves prevents the reverse flow of non-hazardous substances into the water supply. The 310 is used to protect upstream equipment, and is not adequate for low or high hazard backflow prevention.
Features:
•6″ single detector check valve with OS&Y gate valves with flanged end connections
•Designed for use in fire protection feed lines
•Epoxy-coated ductile iron body resists corrosion
•Utilizes the patented, center-stem guided Compound Check for reliable and superior performance
•Optional metered by-pass and OS&Y shut-off available
•Either flanged (standard) or grooved end connections