Ultra-thin pinch 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

Ultra-thin pinch check valve

Model: H74W,H74X

Subtitle：Thin Type Wafer Type Check Valve

The Ultra Slim Wafer Check Valve is an extremely compact check valve designed for piping systems where space is limited. The valve's slim design (30-50% thinner than standard butt check valves) minimizes installation space and weight while maintaining excellent backflow protection.

Classification:Clamping check valves

Working conditions:drugs manufacturing factory, waterwork, food factory

Product Overview	The Ultra Slim Wafer Check Valve is an extremely compact check valve designed for piping systems where space is limited. The valve's slim design (30-50% thinner than standard butt check valves) minimizes installation space and weight while maintaining excellent backflow protection. Constructed of stainless steel, carbon steel or duplex steel, the valve is ideally suited for applications where traditional check valves are too large, such as pumping units in tight spaces, modular piping systems or retrofit projects. Its low resistance design ensures efficient flow with minimal pressure drop and is suitable for water, oil, gas and chemical media.

Product Characteristics	Ultra-thin: 30-50% less thick than standard butt check valves (e.g., DN50 is 25 mm thick vs. 40 mm standard thickness). Ideal for confined spaces or dense piping in skid mounted systems. Lightweight design: Weight reduction of up to 40% reduces the structural load of pipe supports. Low resistance flow path: optimized internal geometry minimizes turbulence and pressure losses (Cv values ≥ 1.2). Quick closing mechanism: Spring assisted flap or double flap design ensures quick sealing and prevents water hammer. Corrosion resistance: Stainless steel (316/316L) or duplex steel options for corrosive media (e.g. seawater, acidic media). Compliance: Meets ASME B16.34, API 594 and ISO 17292.

Product Advantages	Space optimization: can be installed in ducts where space is limited. Energy saving: low pressure drop to reduce pump workload. Easy to retrofit: direct replacement of existing valves without the need for piping modifications. Low maintenance: self-cleaning design and corrosion-resistant materials.

Why Choose Us	Space-saving design: essential for modular systems and retrofits. Fast delivery: DN15-DN200 sizes in stock, 5 days lead time. Customization: Electrolytically polished (for sanitary) or NACE-compliant materials are available. Certification: Full material traceability (EN 10204 3.1/3.2).

Medium of use

Water/hot water, Air (compressed air)

working condition

drugs manufacturing factory, waterwork, food factory

summarize

The Slimline Wafer Check Valve redefines compact flow control, offering unrivaled space efficiency without compromising performance. Its slim profile, lightweight construction and compliance with international standards make it ideal for skid mounted systems, marine applications and retrofit projects. Whether optimizing a new design or upgrading an older system, this valve provides reliability and efficiency in the tightest of spaces.

Product Parameters

Nominal diameter	DN15 to DN300 (½" to 12")
Nominal pressure	Class 150 (ASME B16.34)
Applicable temperature	-29°C to 200°C (-20°F to 392°F)
Valve Material	Stainless Steel (CF8M/CF3M), Carbon Steel (WCB), Duplex Steel (1.4462)
Valve material	Stainless steel (316/316L) or PTFE coated for chemical resistance
connection method	Clamping (fits ANSI/DIN/JIS flanges)