Explain the operation of a wafer check valve

Check Valve (9) · Sprinklers & Nozzles · Wet, Dry, Deluge & Preaction · Control Valves & Devices · Grooved (Germany & UK) · Grooved · Alarm Devices & Monitoring. Its short linear stroke and spring return action combine to close the valve prior to flow reversal which effectively eliminates the shock and water hammer ... Pumps. Check valves in pumps is one of their more common uses. ... Parallel Pump System – In a parallel pump system, a check valve prevents the duty pump from ... The HDL 5087/AVK Series 53 ball check valve is used for industrial and municipal back flow protection. The simple and cost effective design is an ideal ... Minimize Water Hammer Caused by Water Flow Reversal. The Tyco® Model CV-1FR is a compact and rugged swing-type unit that enables water flow in one direction and ... The check valve TRI-CHECK combines all the benefits of the Series TRI-CON in a non-return valve. Triple-offset design with a wide seat angle and a true cone in ... Product Details. Our standard 1-1/4″ or 1-1/2″ slip x slip full flow check valve for basement sump or drain pump applications. The rubber coupling with ... Steam traps - Other than with steam traps discharging to atmosphere, check valves should always be inserted after a steam trap to prevent back flow of ... It is used to help prevent false alarms associated with pressure variations in public water supplies. The Model AV-1-300 alarm check valve trim includes ... Proco Products is a leading manufacturer of rubber check valves, these are fully passive devices requiring neither maintenance nor any source of outside power ...