Features
1、High-Performance Forged Valve Body Construction: The valve body is integrally forged from high-quality carbon steel, alloy steel, or stainless steel, effectively eliminating casting defects and significantly enhancing density and strength. The unique Y-pattern design positions the disc at an angle to the flow axis, effectively dispersing medium impact force and ensuring long-term stable operation under high-pressure, high-temperature, and severe conditions, completely avoiding the risk of pressure part failure.
2、Reliable Automatic Sealing System: The disc and seat sealing surfaces feature a metal-to-metal design, with sealing faces overlaid with cobalt-based hardfacing alloy (e.g., Stellite) and precision-lapped to ensure optimal mating. The valve opens automatically under forward medium pressure and closes rapidly upon flow reversal, utilizing disc weight, spring-assisted force (if equipped), and backpressure to achieve tight, reliable non-return function and prevent backflow.
3、Flexible Connection Options: Depending on system requirements, socket weld (SW), threaded (NPT, PT, BSPT), or flanged connections are available. Socket weld connections achieve permanent integration through full penetration welding, suitable for high-pressure, hazardous media systems. Threaded connections offer quick installation and easy maintenance, ideal for general industrial piping systems. Flanged connections facilitate installation and disassembly, suitable for applications requiring periodic maintenance.
4、Low Flow Resistance Y-Pattern Design: The valve features an internal Y-type flow passage with a streamlined flow path, significantly reducing vortex and turbulence caused by directional changes, effectively minimizing fluid resistance loss and pressure drop. The smooth transition in the flow passage prevents medium stagnation, particularly suitable for high-velocity, continuous operation industrial systems, offering energy savings compared to traditional lift check valves.
5、Wide Applicable Range: The product design covers pressure classes from Class 150 to Class 2500 with a broad temperature range. It is suitable for various industrial fluids including water, steam, oil, corrosive media, and high-temperature high-pressure gases, meeting piping control requirements across different sectors such as petroleum, chemical, power, metallurgy, refining, and general industry.
6、Fast Response and Installation Flexibility: As an automatic valve, it requires no external power source or manual operation, relying entirely on the medium's energy for opening and closing, providing sensitive response and reliable action. The Y-pattern design ensures smooth disc movement with short opening and closing times, effectively reducing water hammer risk. The valve can be installed horizontally or vertically (with upward flow) based on piping layout, offering installation flexibility to accommodate different space and process requirements.