DN50 PN16 Rubber Disc Swing Check Valve
- Body: Cast Iron / Ductile Iron (DIN1691 / DIN1693)
- Seat Ring: Brass / Bronze (EN12167)
- Disc Ring: Brass / Bronze (EN12167)
- Washer: Carbon Steel (EN10083-2 / ASTM A29)
- Locking Nut: Carbon Steel (EN10083-2 / ASTM A29)
- Arm: Ductile Iron (DIN1693 / BSEN 1563)
- Hing Pin: Stainless Steel (EN10088-1 / ASTM A959)
- Plug: Carbon Steel (EN10083-2 / ASTM A29)
- Gasket (Nylon): Nylon
- Gasket (NBR): NBR (ISO4633)
- Bolt: Carbon Steel (EN10083-2 / ASTM A29)
- Nut: Carbon Steel (EN10083-2 / ASTM A29)
- Bonnet: Ductile Iron (DIN1691 / BSEN 1561)
- Durable Body: Made of high-quality Cast Iron or Ductile Iron for long service life.
- Reliable Sealing: Brass/Bronze seat and disc ring ensure tight shut-off and prevent backflow.
- Corrosion-Resistant Components: Stainless steel hinge pin and carbon steel fasteners improve durability.
- Flexible Rubber Disc: Provides excellent sealing, low noise, and reduces water hammer.
- Standard Specifications: DN50 size and PN16 pressure rating fit common pipeline systems.
- Easy Maintenance: Simple design allows quick inspection and replacement of parts.
- Wide Applications: Suitable for water supply, wastewater treatment, irrigation, and industrial pipelines.
- Swing Type Design: Allows smooth one-way flow with minimal pressure loss.
| Specification | Details |
|---|---|
| Size Range | 1 1/2“-24”/DN40-DN600 |
| Working Pressure | PN10/PN16/JIS10K/JIS16K/125LB/150LB |
| Body Materials | Cast Iron/Ductile Iron |
| Bonnet Materials | Cast Iron/Ductile Iron |
| Seat Ring Materials | Brass/Stainless Steel |
| Arm Materials | Ductile Iron |
| Disc Materials | Ductile Iron |
| Bolt Materials | Ductile Iron |
| Nut Materials | Carbon Steel |
| Pin Materials | Stainless Steel |
| Drain Plug | Stainless Steel |
| Application | Water, Oil & Gas |
| Shell Test | 1.5 times |
| Seat Test | 1.1 times |
What is a Swing Check Valve?
A swing type check valve, also called a swing check valve, allows fluid to flow in one direction and automatically closes to prevent reverse flow. The rubber disc design provides reliable sealing for long-term operation in demanding environments.
Features and Benefits
This rubber disc swing check valve features a GGG50 ductile iron body and a rubber disc that ensures tight sealing, quiet operation, and long service life. Its swing type design allows smooth one-way flow with minimal pressure loss and makes installation and maintenance simple.
Swing Check Valve Installation
Proper swing check valve installation is essential for optimal performance. Install the valve horizontally with the disc swinging freely and follow the flow direction indicated on the valve body.
Swing Check Valve vs Spring Check Valve
Compared with a spring check valve, a swing type check valve is better suited for larger pipelines due to smoother flow and lower pressure loss.


