Silent check valves feature an internal spring to close the valve before any reverse flow takes place, eliminating water hammer. Silent checks can also be used as foot valves.
Valve feature a replaceable resilient seat for positive sealing. The wafer style installs between two standard pipe flanges and has a flow area 3% greater than the pipe size. The flanged globe style valves have 10% greater flow area. All valves are designed for use with Class 125/150 flat face flanges, but the wafer style valves through 6" can also be used with Class 250/300 flat face flanges. Sizes 6" and larger ship motor freight.
Items sold by USABlueBook are intended for use only by professionals in the water and wastewater treatment industry. Many items sold by USABlueBook require supplemental training, licenses or permits for proper use and may be harmful if not used properly.