Stainless Steel Double Disc Check Valve with Non-Return Spring Type Metal Seal
Crafted from premium stainless steel, this double disc check valve boasts exceptional anti-corrosive properties and structural ruggedness for harsh operating conditions. Its hard seal design delivers durable, leak-free shutoff, withstanding high temperatures (-20°C to 250°C) and abrasive media. The dual-disc structure ensures unobstructed fluid flow and minimal pressure drop, while inline mounting allows easy integration. Suited for high-pressure pipelines, steam systems, and chemical processing, it complies with ANSI B16.34 standards for consistent, low-maintenance performance.
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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.
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.
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.
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