Check Valve with Counter Weight1
Check Valve with Counter Weight2
Check Valve with Counter Weight3
Check Valve with Counter Weight4

Check Valve with Counter Weight

Size Range: DN40-DN400

Pressure: PN16

Body Materials: DI

Seat Materials: Brass/SS/Rubber

Disc Materials: DI

Introduction

FEATURES

Working temperature:-10℃~120℃
Suitable medium:Water,Oil,Gas
Application: Municipal construction, Power,Water supply, Petroleum industry


Product Identification:

Swing check valve is dependent on the flow of the medium itself and automatically open and close, It is  prevent the backflow of the medium , also known as check valve,one way valve, reflux valve,backpressure vale.

Product Advantages:

1. QT450-10 valve body, level 3 Spheroidization rate, tensile strength over 450Mpa, elongation over 10%. not easy to crack or freeze.
2.250μm thickness epoxy coating. It is prevent corrode and rust.
3.Heavy type valve body.
4.Cr13 seat, better wear-resisting and sealing performance.
5.Each valve will be inspected for shell and seal pressure before leaving factory.

Parameters


 

Parameter Information:
Executive standard:
Name   Face to face length Pressure Test
Reference
standard
  DIN 3202 DIN EN 1092-2 DIN EN 12266
Material of Main Parts:
Name 1-Body 3-Disc 2-Seat 17-Counter Weight
Material DI DI Brass/SS/Rubber DI
Dimensions:
SIZE  
DN NPS L φD φD1 φD2 b Z-d
40 1 1/2'' 180 150 110 84 18 4-19
50 2'' 200 165 125 99 20 4-19
65 2  1/2'' 240 185 145 118 20 4-19
80 3'' 260 200 160 132 22 8-19
100 4'' 300 220 180 156 24 8-19
125 5'' 350 250 210 184 26 8-19
150 6'' 400 285 240 211 26 8-23
200 8'' 500 340 295 266 30 12-23
250 10'' 600 405 355 319 32 12-28
300 12'' 700 460 410 370 32 12-28
350 14'' 800 520 470 429 36 16-28
400 16'' 900 580 525 480 38 16-31
Application
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