Product · PVPeW 2026

HH44X Slow-Closing Check Valve

HH44X Slow-Closing Check Valve — PVPeW 2026

Description

A micro-resistance slow-closing check valve whose disc opens under the velocity head of the incoming medium. When flow stops, the disc closes in two stages: a piston holds it partly open to relieve surge, then the disc closes slowly as water returns through the needle valve. This provides non-return protection while reducing water hammer.

Technical Parameters

Model
HH44X
Function
Slow-closing check / water hammer control

PVPeW 2026 · The 21st Wenzhou International Pump, Valve and Pipe Exhibition · Archive of past editions · Wenzhou, China · All product categories