Ductile Iron Flange Check Valve PN16 DN100 for Water, Oil, and Gas Pipelines
Product Specifications
| Attribute | Value |
| Product Name | Ductile Iron Flange Check Valve Metal Valve PN16 DN100 One-Way Valve |
| Key Words | Check Valve, Swing Check Valve, No Return Valve |
| Power | Automatic |
| Temperature | 600-900°C |
| Warranty | 18 months |
| Connection | Flanged |
| Application | General, Oil and Gas, Petrochemical and Chemical Industry, Water and Wastewater, HVAC |
| Media | Corrosive |
| Body Material | Ductile Iron |
| Packing | Wood box |
| Customized Support | OEM, ODM, OBM |
| Pressure | 150/300/600/900/1500/2500/3000/4500LB |
Product Description
This flange check valve (also called non-return valve or one-way valve) only allows one-way flow of the medium and prevents backflow in fluid pipelines.
Core Structure & Working Principle
- Valve Body: Made of ductile iron with surface anti-corrosion spray, pressure-resistant and corrosion-resistant. Suitable for water, oil, gas and other media. Features flanges at both ends for easy pipeline connection.
- Markings: "PN16" indicates pressure rating (1.6MPa/16 kg/cm²), "DN100" indicates nominal diameter (100mm inner diameter).
- Valve Disc: The heart of the check valve. When medium flows forward, thrust opens the disc; reverse flow automatically closes the valve port via gravity and medium pressure.
- Flow Direction: Arrow indicates the only permitted flow direction - critical for proper installation and function.
Applications & Benefits
Water Pump Outlet: Prevents water backflow when pumps stop, avoiding water hammer damage to impellers and pipelines.
Drainage Systems: Ensures efficient condensate drainage in steam pipelines while blocking steam backflow.
Gas Pipelines: Prevents dangerous gas backflow and flashback situations.
Key Advantages: Automatic operation, simplified system design, space-saving, and cost-effective compared to valve/check device combinations.
This valve serves as the pipeline's "one-way gatekeeper," silently preventing backflow risks and protecting system safety - an essential component at water pump outlets and power equipment.
Technical Specifications
- Applications: Chemical Industry, Petroleum and Gas
- Origin: Zhejiang, China
- Media Temperature: High temperature (600-900°C)
- Brand: SND
- Structure: Swing type