High Pressure Sealing Check Valve

Technical Specifications
- Design & Manufacturing Standards: API 6D / BS 1868
- Face-to-Face Standard: API 6D / ASME B16.10
- End Connection Standard: ASME B16.5 / ASME B16.47
- Testing & Inspection Standard: API 598 / API 6D

Product Range
- Body Material: Carbon Steel, Stainless Steel, Alloy Steel, Monel, Duplex, Inconel
- Size Range: 1/2" to 48"
- Pressure Rating: Class 900 to Class 2500
- End Connection: RF, RTJ, BW
- Working Temperature: -29℃ to +560℃

Key Features & Advantages
Pressure Seal Design for Enhanced Performance
One of the defining characteristics of the High Pressure Sealing Check Valve is its pressure seal bonnet, which provides good sealing capabilities compared to traditional bolted bonnet designs. The metal-to-metal seal in the pressure seal bonnet tightens as system pressure rises, ensuring long-term reliability and leak prevention.

Compact and Rigid Structure
The High Pressure Sealing Check Valve is designed to offer a more compact and rigid structure than conventional bolted bonnet valves. The elimination of bolted joints reduces the potential for leakage, enhancing safety and operational efficiency, particularly in high-temperature and high-pressure environments.

Durable Seat Sealing Surface
To maximize durability and service life, the sealing surfaces of the valve seat and disc are reinforced with full stellite overlay. This ensures good wear and corrosion resistance, even under aggressive flow conditions.

Versatile Material Selection
The High Pressure Sealing Check Valve is available in a wide range of materials, including carbon steel, stainless steel, alloy steel, Monel, Duplex, and Inconel. This material versatility allows the valve to be tailored to different operating conditions and media requirements.

Good Bonnet Joint Sealing
Unlike bolted bonnet designs that may require periodic maintenance and retightening, the pressure seal bonnet of this valve provides absolute leak-proof performance. This relatively small downtime and reduces long-term maintenance costs, making it a cost-effective solution for high-pressure applications.

Optional Bypass and Hinge Pin Designs
The High Pressure Sealing Check Valve can be customized with an optional bypass design to help balance pressure and enhance operational efficiency. Additionally, both internal and through-body hinge pin designs are available, offering flexibility based on system requirements.

Additional Features for Operational Stability
For enhanced stability, extra lever, counterweight, and damper options can be incorporated into the design. These additional features help regulate valve operation, preventing sudden pressure fluctuations and ensuring smooth functionality.

Application & Industries
The High Pressure Sealing Check Valve is widely used in industries where high pressure and temperature conditions demand absolute sealing reliability. These include:
- Fossil fuel power plants
- Oil & gas refineries
- Petrochemical industries
- High-pressure steam systems
- Industrial processing plants

With its good sealing capabilities, durable construction, and versatile customization options, the High Pressure Sealing Check Valve is an good choice for high-pressure applications. Its pressure seal design ensures a leak-proof and maintenance-friendly operation, making it a reliable and cost-effective solution for industries requiring robust performance in to the limit conditions.