Product Model: DRVZ

Nominal Diameter: DN40~600mm 

Nominal Pressure: PN1.0~2.5MPa 

Applicable Temperature: 0~80℃ 

Applicable Media: Water

Main Material: Cast iron, Ductile iron, Carbon steel, etc.

Product Overview
The DRVZ (H42X) silent check valve is mainly composed of a valve body, seat, flow guide, disc, bearing, spring, and other main parts. The internal flow passage adopts a streamlined design, resulting in minimal pressure loss. The disc opening and closing stroke is very short, allowing rapid closing when the pump stops, preventing loud water hammer noise and featuring silent closing. This valve is mainly used in water supply and drainage, fire protection, and HVAC systems. It can be installed at the pump outlet to prevent backflow and water hammer damage to the pump.