OEM Stainless Steel Body WCB Single Disc Check Valve PN16 Manufacturer, Factories
Product Description
The single disc swings open automatically under forward flow pressure and closes via gravity or a spring, ensuring quick response to prevent backflow. This minimizes water hammer compared to dual-plate designs.
Often equipped with soft seals (e.g., EPDM, NBR, or Viton) for tight shut-off, though metal-seated options are available for higher temperatures or abrasive media.
Wafer design allows easy installation in horizontal or vertical (upward flow) pipelines, with minimal space requirements.
Typically -29°C to 180°C, depending on materials selected.
Wafer design reduces installation space and weight compared to flanged swing check valves.
Straight-through flow path minimizes resistance.
Single disc design ensures fast response to flow reversal, reducing backflow and water hammer.
Stainless steel body enhances durability in corrosive environments like seawater or chemical systems.
Single disc may restrict flow compared to dual-plate or swing check valves in larger sizes.
In high-velocity or turbulent flows, the disc may flutter, leading to wear on the hinge or seat.
Must be installed with upward flow if vertical, to ensure proper disc closure.
| Size & Pressure Rating & Standard | |
|---|---|
| Size | DN50-DN600 |
| Pressure Rating | PN6, PN10, PN16, CL150 |
| Face to Face STD | ASME B16.10 or EN 558 |
| Connection STD | EN 1092-1 or ASME B16.5 |
| Material Construction | |
| Body | Cast Iron (GG25), Ductile Iron (GGG40/50), Carbon Steel (WCB A216), Stainless Steel (SS304/SS316/SS304L/SS316L), Duplex Stainless Steel (2507/1.4529), Bronze, Aluminium Alloy. |
| Disc | DI+Ni, Carbon Steel (WCB A216), Stainless Steel (SS304/SS316/SS304L/SS316L), Duplex Stainless Steel (2507/1.4529), Bronze, DI/WCB/SS coated with Epoxy Painting/Nylon/EPDM/NBR/PTFE/PFA |
| Stem / Shaft | SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel |
| Seat | NBR, EPDM/REPDM, PTFE/RPTFE, Viton, Neoprene, Hypalon, Silicon, PFA |
The single disc swings open automatically when forward flow pressure is applied and closes via gravity or a spring upon flow cessation, providing rapid response against backflow and reducing water hammer.
The valve can be installed in horizontal pipelines as well as vertical pipelines. When mounted vertically, it must be arranged with upward flow to ensure proper disc closure.
The valve typically operates within a temperature range of -29°C to 180°C, depending on the selected body, disc, and sealing materials.
Soft seals such as NBR, EPDM/REPDM, PTFE/RPTFE, Viton, Neoprene, Hypalon, Silicon, and PFA are standard for tight shut-off, while metal-seated options are suitable for higher temperatures or abrasive media.
Sizes range from DN50 to DN600, with pressure ratings of PN6, PN10, PN16, and CL150 under ASME B16.10/EN 558 face-to-face and EN 1092-1/ASME B16.5 connection standards.
It is widely used across oil and gas pipelines, HVAC systems, chemical processing systems, and sewage and drainage systems.
