A swing check valve is a valve with a hinged disk inside, which remains closed until water begins flowing into the check valve, at which point the water pressure is enough to swing it open. Prevents water from running back into the system, or, in a pump application, keeps the pump primed when the pump is not running.

• Durable swing check valve
• 4" socket weld inlet x 4" socket weld outlet
• Ideal for pump applications