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China Stainless Steel Double Disc Check Valve Suppliers - Factory Direct, Metal Seal, High Temp, Leak-Free Performance
Product Specification
| Product Name | Check Valve | Material | Stainless Steel |
| Type | Double disc | Medium | Water/Sea water |
| Size | DN50-DN1200 | Seal | Stainless Steel |
| Power | Automatic | Standard | DIN/ANSI/GOST/JIS/BS |
Product Description
Check valves boast diverse material selections tailored to different working conditions. Common options include PVC, brass, and stainless steel. PVC check valves excel in corrosion resistance, making them ideal for low-pressure fluid systems like domestic water pipelines. Brass check valves offer excellent durability and conductivity, suitable for medium-pressure industrial applications. Stainless steel variants stand out in high-temperature and high-pressure environments, such as chemical processing equipment.
Structure design: In terms of structure, the dual-plate check valve features a compact design with two symmetrical valve discs. This structure reduces flow resistance and ensures quick closing responses. The lift check valve adopts a vertical disc movement structure, which provides tight sealing performance, especially in pipelines with strict leakage requirements.
Installation & Usage: When it comes to usage, check valves need to be installed in the correct flow direction as indicated by the arrow on the valve body. They should be placed at the outlet of pumps or the end of pipelines to prevent backflow effectively. Regular inspection of valve discs and springs is necessary to maintain their functional reliability.
Their applications cover a wide range of fields. They are extensively applied in water supply and drainage systems to protect water pumps from damage caused by backflow. They also play a key role in sump pump systems, ensuring that pumped water does not flow back into the sump.
Frequently Asked Questions
Q
What materials are check valves commonly made of?
Check valves are commonly made from PVC, brass, and stainless steel. PVC is ideal for low-pressure systems due to its corrosion resistance, brass is suited for medium-pressure industrial use, and stainless steel is preferred for high-temperature and high-pressure environments.
Q
What are the benefits of a dual-plate check valve structure?
A dual-plate check valve features a compact design with two symmetrical valve discs. This specific structure reduces flow resistance and ensures quick closing responses to prevent backflow efficiently.
Q
Where should check valves be installed in a pipeline?
Check valves must be installed in the correct flow direction as indicated by the arrow on the valve body. They are typically placed at the outlet of pumps or at the end of pipelines to prevent backflow effectively.
Q
What maintenance is required for check valves?
To maintain functional reliability, check valves require regular inspection of the valve discs and springs to ensure they open and close properly and remain free of debris.
Q
In what systems are check valves primarily applied?
They are widely applied in water supply and drainage systems to protect pumps from backflow damage, as well as in sump pump systems to ensure pumped water does not flow back into the sump.