DHH44X/H Micro Resistance Slowly-Closing Silencing Check Valve

Group Check Valve
Min. Order 1 piece
Terms of Payment all
Update Time 2017-06-14
Item specifics
Nominal Pressure0.6-2.5MPa
Slow Closing Time3-90 s
Suitable MediumWater
Test StandardGB/T13927-1992
  • Description
  • Product review

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


Installation





Dimension

 

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