High Pressure Wafer Type Check Valve

The butt-clamp check valve is suitable for water, steam, oil, gas and weak corrosive media, widely used in petroleum, chemical, electric power, HVAC and other systems. The valve has a compact structure and is suitable for horizontal or vertical installation, especially for pipelines with restricted space. The working temperature range is generally -29℃ to +425℃, depending on the selected material. The main function is to prevent backflow of media, relying on the fluid's own pressure to open and close automatically, without external drive. Commonly used materials include carbon steel, stainless steel, alloy steel, sealing surface can be selected rubber, PTFE or hard alloy, to adapt to a variety of complex working conditions.

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products

High Pressure Wafer Type Check Valve

Model: H77Y, H77H

Subtitle: Compact High Pressure Check Valve

The High Pressure Wafer Check Valve is a compact, robust check valve designed for high pressure applications in the oil and gas, petrochemical and power generation industries. The valve has a butt-mounted design and is mounted between flanges, making it ideal for systems where space and weight are critical.

Tags:High Pressure Check Valve

Classification:Clamping check valves

Working conditions:chemical plant, power plants, petrochemical industry

Product Overview	The High Pressure Wafer Check Valve is a compact, robust check valve designed for high pressure applications in the oil and gas, petrochemical and power generation industries. The valve has a butt-mounted design and is mounted between flanges, making it ideal for systems where space and weight are critical. Constructed of carbon, stainless, or alloy steel, the valve can withstand pressures up to Class 900 (ASME B16.34) and temperatures up to 800°F/427°C. The swing-valve or double-valve design ensures reliable sealing and minimizes pressure drop, while its compact profile simplifies installation and reduces overall system weight. The swing or double flap design ensures reliable sealing and minimizes pressure drop, while its compact form simplifies installation and reduces overall system weight.

Product Characteristics	High-Pressure Ratings: Pressure ratings from Class 150 to Class 900 (ASME B16.34) for pressures up to 150 bar (2,175 psi). Counter-clamp design: compact and lightweight, ideal for space-constrained installations. Mounts between flanges without additional bolts or gaskets. Durable construction: Valve body material: carbon steel (ASTM A216 WCB), stainless steel (ASTM A351 CF8M), or alloy steel (ASTM A217 WC6/WC9). Internal components: Stainless steel or Inconel internals for corrosion resistance and longer service life. Reliable sealing: Oscillating flap or double flap design ensures immediate sealing in the event of reverse flow. Reduces the effects of water shock in high-pressure systems. Compliance: Meets API 594, ASME B16.34, and NACE MR0175 for high pressure and acid applications.

Product Advantages	Space-saving design: Compact, clamp-on design reduces installation space and system weight. High Reliability: Designed for critical high voltage applications with zero leakage (Class VI). Energy saving: Minimum pressure drop reduces pump energy consumption. Easy to install: no additional bolts or washers required; fits between standard flanges.

Medium of use

Water/hot water, petrochemical

working condition

chemical plant, power plants, petrochemical industry

summarize

The High Pressure Wafer Check Valve is a rugged, high-performance solution for preventing backflow in high-pressure, high-temperature industrial systems. Its compact, baffled design, durable construction and API and ASME compliance make it ideal for critical applications in the oil and gas, petrochemical and power generation industries. Whether you're managing a high-pressure pipeline, designing a refinery system or supplying industrial equipment, this valve delivers unmatched reliability and efficiency under extreme conditions.

Product Parameters

Nominal diameter	2" to 12" (DN50 to DN300)
Nominal pressure	Class 150 to Class 900 (ASME B16.34)
Applicable temperature	-29°C to 427°C (-20°F to 800°F)
Valve body material	Carbon Steel (WCB), Stainless Steel (CF8M), Alloy Steel (WC6/WC9)
Valve material	Stainless steel (410/316) or Inconel for high temperature applications
sealing material	Metal-to-metal hard seals
connection method	clamp connection