• Wafer check valve
  • Wafer check valve
  • Wafer Check Valve

Wafer Check Valve

Features: DN: 2~24"(DN50~DN400)
Nominal pressure (MPa): PN10, PN16,
Body Materials: Cast Iron, Ductile Iron , WCB , Stainless Steel, Bronze
Seat Materials: NBR, EPDM
Disc Materials: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958
Stem Materials: SS416, SS304, SS316

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L R D Do
40 43 23.5 92 55
50 43 28.5 107 65.5
65 46 34.5 127 81
80 64 44 142 95
100 64 52.8 162 121
125 70 66.5 192 148.3
150 76 74.5 217 171
200 89 87.5 272 225
250 114 127 328 265
300 114 147 378 310
350 127 173 438 360
400 140 198 489 410



Product advantages:

1. The spring adopts ni-base alloy x-750, which has good corrosion resistance, seawater resistance and stable torque, and can provide material proof.

2. The spring is treated with solid solution, with high tensile strength of 910MPa, Brinell hardness HB350, high hardness and good fatigue resistance. After heat treatment, the residual deformation stress is eliminated, which greatly improves the service life of the spring.

3. Rubber is treated with special process to avoid rubber aging after high-temperature spraying and give full play to rubber performance.

4. The valve body adopts the casting process of production line, with smooth appearance, clear casting, high dimensional accuracy and guaranteed delivery time.

5. The mechanical properties of the main material fully meet the qt450-10 standard, and the spheroidization rate can reach level 3.

6. The valve design fully conforms to the JB/T8937 standard, with large body shape, heavy weight, standard wall thickness and ensuring pressure.

7. The valve shaft is made of 304 material to prevent rust and corrosion.

8. The sealing cover of butterfly plate and valve body shall be ground to ensure its smoothness and smoothness, ensure sealing of disc and valve body, and the sealing cover of valve shall not leak when no pressure is applied. All products can achieve static pressure 0 leakage.

9. The inner cavity rubber of valve body adopts advanced vulcanization process to ensure that the binding strength of rubber and valve body is greater than 1.732mpa, effectively avoiding the shedding of seats in the service process.

10. The sealing cover adopts the wire seal, which improves the seal reliability.

11. Processing with special equipment to ensure concentricity and accuracy.

12. The axle hole adopts special sealing structure, and the sealing is reliable.

13. Built-in label design to prevent collision and scratching of the label.

14. Each valve of Wesdom with LOGO and production furnace number, each product can be traced back.

15. Use heat shrink film and carton packing, the packaging is beautiful, prevent product knock.

16. Ultrasonic cleaning of each valve should be carried out, so as to prevent contamination and particulate impurities from remaining in the body, ensure cleanliness of the valve and prevent contamination of the water in the pipeline by the valve itself.

17. The valve body is sprayed with epoxy resin plastic powder of world famous brand Aksu, which can be deposited thicker and have stronger adhesion after melt curing.

18. Each product of Wesdom has its own QR code mark from the part to the finished product, and its unique ID number. The production process can be automatically checked through the qr code, so that the product can be traced.

19. The products under the brand of Wesdom are insured by the Pacific insurance company with the quality of 10 million, and the warranty lasts for 2 years. If the product is damaged within two years, the company shall compensate for the loss unconditionally due to the quality problem of the product itself.


Standard Test :
Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Seat Test: 1.1 times the working pressure with water.
Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.Special Test: On request, any other test can be carried out according to special instruction by client.


1.Water Treatment Plant ;
2.Drilling Rigs;
3.Paper Industry;
4.Gas Plant;
5.Sugar Industry;
6.Cooling Water Circulation;
8.Heating & Air Conditioning;
9.Chemical Industry;
10.Pneumatic Conveyors;
11.Waste Effluent Treatment Plant;
12.Compressed Air.


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