Wafer Type Single Disc Check Valve
Description
The wafer type single disc swing check valve operates automatically when flow enters in the forward direction. The disc swings open with minimal resistance and quickly closes when flow reverses, protecting upstream equipment from potential damage caused by backflow.
Constructed from durable ductile iron, stainless steel, or carbon steel, this valve is available with different seat materials such as EPDM, NBR, or metal seats to suit various media and temperature requirements. The wafer-style body fits easily between standard flanges, making installation and maintenance fast and efficient.
With its simple structure and low-pressure drop design, the wafer type single disc swing check valve ensures long-term performance and minimal energy loss in the system. It is suitable for both horizontal and vertical upward flow installations.
Choose our Wafer Type Single Disc Swing Check Valve for dependable, space-saving, and low-maintenance backflow protection.
Specifications:
|
Nominal pressue (MPa) |
1.0 |
1.6 |
|
|
Nominal diameter(mm) |
50-1000 |
50-1000 |
|
|
Test pressure |
Shell |
1.5 |
2.4 |
|
(MPa) |
Seal |
1.1 |
1.76 |
|
Applicable temperature |
150 |
||
|
Applicable medium |
Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, |
||
|
Operating mode |
manual, worm gear, pneumatic, electric, etc. |
||
Standards:
|
Design & Manufacture |
Flange Connection |
Face to Face Dimension |
Test & Inspection |
|
API 594 |
DIN PN10/16/25 |
API594 |
API 598 |
|
body |
Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel |
|
Plate |
Ductile Iron, Carbon Steel, Stainless Steel |
|
Spring |
Stainless Steel |
|
Hinge Pin |
Stainless Steel |
|
Plug |
carbon steel |
|
Body Bearing |
PTFE |
|
Spring Bearing |
PTFE |
|
Stop Pin |
Stainless Steel |
|
Eye Bolt |
Carbon Steel |
|
Body Seat |
NBR, EPDM, Viton, Neoprene |


Tianjin Guoji Valve Co., Ltd. is an export-oriented valve manufacturer with 15,332 square meter factory area, which has strong capability of R&D, Manufacture, Trading and Service. Now our company has passed the Lloyd's Register (LR) ISO9001: 2015 quality management system certification (ISO Approval number: ISO 9001 – 00033059) and CE/PED certification (EU Certificate Of Conformity). (Certificate No: 0343/PED/SHA/BJG00001668/A).
TGV's products covered Butterfly valves, Check valves, Strainers, Gate valves, Ball valves, Globe valves, Expansion joints, Flanges and Fittings with pressure range from 0.5 to 6.4 MPa, size from DN15 to DN3000. The products also have been widely exported to more than 30 countries and regions.
We aim at deliver only quality valves with professional services, we see quality and service as life and always take our reputation and promises seriously.



















