The DRVZ type silent check valve consists of components such as valve body, valve seat, guide body, valve disc, bearing shell, and spring. The internal flow channel adopts a streamlined design, with low pressure loss, short valve disc opening and closing stroke, and short pump stop opening and closing stroke. When the pump is stopped, it can be quickly closed to prevent huge water hammer sound and form a silent effect.

This valve is mainly used for water supply, drainage, fire protection, and HVAC systems. It can be installed at the outlet of the water pump to prevent medium backflow and water hammer damage to the pump.