DHH44X/H Micro Resistance Slowly-Closing Silencing Check Valve

Model: DHH44X/H

Item specifics

Nominal Pressure: 0.6-2.5MPa

Slow Closing Time: 3-90 s

Suitable Medium: Water

Test Standard: GB/T13927-1992

Review

Description

Brief Introduction

DHH44X / H Micro Resistance Slowly-Closing Silencing Check Valve is mainly used for industrial, urban water supply and drainage pipes and high-rise residential, hotels, pressurized water pump outlet. In the design to fully consider the needs of the use of the environment, the use of inclined plate structure, to no vibration, no noise, smooth operation. To ensure that hotels, residential environment quiet, and energy-saving effect. So as to reduce the water pressure impact of stopping pump back-flow and eliminate the generation of the peak value of water hammer. The sealing of closure is made of NBR, the sealing performance is good and shock absorption is reduced. Wear-resistant, long service life, easy maintenance.

Parameters

Nominal Pressure	0.6-2.5MPa
Nominal Diameter	200-2000mm
Slow Closing Time	3-90 s
Suitable Medium	Water
Suitable Temperature	0-80℃/ 0-400℃
Test Standard	GB/T13927-1992

Main Material

Name	Material
Body	Gray cast iron HT200, Ductile iron QT400-18, WCB
Disc	Gray cast iron HT200, Ductile iron QT400-18, WCB, Carbon steel Q235-A
Stem, Buffer cylinder	Fine carbon steel 45, stainless steel
Seal Ring	NBR. Stainless steel