Cast Iron or Cast Aluminum Bronze Compact Wafer Silent Check Valves - 91
Series 91 Cast Iron or Cast Aluminum Bronze Compact Wafer Silent Check Valves are designed for liquids and gases where flow reversal can cause surge and water hammer.
Specification
Features
Compact, lightweight wafer design saves space
Disc begins to open at 0.5 psi (34.5 kPa), and opens 1/3 inch per inch of line size for enhanced flow
Disc is fully guided at top and bottom to ensure alignment and sealing at any installation angle