Check Valve S4 – PVC, Glue Socket d50

The check valve S4 in the PVC version with a glue socket for a 50 mm diameter pipe is designed for one-way flow control in pool and industrial water systems. In the event of a pump failure or overpressure from the filtration, it automatically closes the flow and prevents backflow, which could damage the pump or disrupt the system settings. The valve body and gate are made of PVC resistant to pool chemistry; the spring of the trigger mechanism is made of corrosion-resistant steel. The glue socket d50 connection allows a firm and permanent joint without the risk of thread loosening due to operating pressures. The valve is suitable for both horizontal and vertical installation in the circulation or supply pipe of the pool.