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

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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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