Rubber flap check valve

Short Description:

The flap of this valve is coated with rubber on its outer layer and the switching duration it can be up to 1 million times. and, with the full-flow area design, features small head loss, not easy piled-up of foreign matters and simple repair.

Suitable for the water supply and drainage system to, mounted in the pipeline or on the pump outlet,prevent both pump and pipeline from being damaged due to medium’s back-flow and water hammer.It can also be mounted on the by-pass pipe for water in and out of a reservoir to assist the water of the reservoir to flow back to the water supply system.

 


Product Detail

Product Tags

橡胶板止回阀

Meterial of main parts

Components name

Material

Valve body

Cast iron 、ductile iron、cast steel

Valve cover

Cast iron 、ductile iron、cast steel

Spring

Stainless steel

Technical data

PN (MPa)

Nominal Pressure

1.0

1.6 

2.5 

(MPa)

Intensity pressure test

1.5

 2.4

 3.75 

(MPs)

Seal pressure

1.1 

 1.76

 2.75

°C

Suitable temperature

  ≤80

Suitable Mediums

Clearwater,Sewage,Seawater

Slow shuts the time

   ≤60 seconds

Main Dimensions

DN

(MM)

L D D1 dn n
50 203 165 125 17.5 4
65 216 185 145 17.5 4
80 241 200 160 17.5 8
100 292 220 180 17.5 8
150 356 285 240 22 8
200 495 340 295 22 8
250 622 395 350 22 12
300 698 445 400 22 12
350 787 505 460 22 16
400 914 565 515 22 16
450 978 615 565 26 20
500 978 670 620 26 20
600 1295 780 725 30 20

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