Counterclamp Swing 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

Counterclamp Swing Check Valve

Model: H74X,H74W

Subtitle：Ultra-Thin Swing Check Valve

The Wafer Type Slim Check Valve is a compact, lightweight non-return valve designed to prevent reverse flow in piping systems where space and weight are key considerations. Featuring a wafer-style design, the valve is flange-to-flange mounted, which is ideal for applications that require a low-profile solution without compromising performance.

Tags:Water Hammer Elimination Check Valve

Classification:Clamping check valves, Swing Check Valve

Working conditions:drugs manufacturing factory, chemical plant, paper mills, food factory

Product Overview	The Butt Clamp Slimline Check Valve is a compact, lightweight non-return valve designed to prevent reverse flow in piping systems where space and weight are key considerations. Featuring a butt-clamp design, the valve is flange-to-flange mounted, which is ideal for applications that require a low-profile solution without compromising performance. Constructed of carbon steel, stainless steel or ductile iron, this durable and corrosion-resistant valve is suitable for water, steam, oil and natural gas systems. Its swing design ensures a minimum amount of reliable sealing, while its compact profile simplifies installation and reduces overall system weight.

Main characteristics	Counter-clamp design: compact and lightweight, ideal for space-constrained installations. Mounts between flanges, eliminating the need for additional bolts or washers. Swing-open design: hinged disk allows for smooth forward movement, low resistance, and immediate sealing upon flow reversal. Reduced water hammer effect compared to other check valve types. Durable Construction: Body Material: Carbon Steel (ASTM A216 WCB), Stainless Steel (ASTM A351 CF8M), or Ductile Iron (EN-GJS-400-18).Internals: Stainless Steel Steel Trim for corrosion resistance and extended service life. Lower Maintenance: Self-cleaning disc design reduces wear and prolongs service life. Compliance: Meets API 594, ASME B16.34 and ISO 17292 for general industrial applications.

Product Advantages	Space-saving design: Compact counterclamp reduces installation space and system weight. Reliable sealing: The oscillating disc design ensures zero backflow, even at low pressures. Energy efficiency: Minimal pressure drop reduces pump energy consumption. Easy to install: no other bolts or washers required; fits between standard flanges.

Why Choose Us	Proven performance: trust in general purpose industrial and commercial applications. Cost-effective: affordable solution with low installation and maintenance costs. Global Compliance: Meets API, ASME and ISO standards for international programs. Versatility: Suitable for a wide range of media and installation orientations.

Medium of use

working condition

drugs manufacturing factory, chemical plant, paper mills, food factory

summarize

The Wafer-Type Slim Check Valve is a reliable, cost-effective solution for preventing reverse flow in water, steam, oil and gas systems. Its compact, butt-mounted design, durable construction and adherence to industry standards make it ideal for space-constrained installations. Whether you're managing municipal water supplies, designing industrial process systems or supplying commercial equipment, this valve delivers consistent performance with minimal maintenance.

Product Parameters

Nominal diameter	2" to 24" (DN50 to DN600)
Nominal pressure	Class 150 to Class 600 (ASME B16.34)
Applicable temperature	-29°C to 425°C (-20°F to 800°F)
Valve Material	carbon steel (WCB), stainless steel (CF8M).
Valve material	Stainless Steel (410/316)
Seat Material	Metal-to-metal or PTFE/graphite for high temperature applications
connection method	Clamp-on type (fits between flanges)