Sanitary Hygienic Stainless Steel Check Valve

  • Sanitary thread check valve
  • Sanitary butt-weld check valve
  • Sanitary union type check valve
  • Sanitary flange check valve
  • Sanitary clamp check valve
  • Sanitary ball check valve
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Product Description and Applications:
The sanitary hygienic stainless steel check valve is sometimes referred to as a non-return valve. These units are installed in pipeline systems to prevent fluids from flowing backwards. The sanitary non return valve is constructed form SUS304 or 316L stainless steel, which meets all of the strict sanitary requirements for various food and chemical processing applications. The surface of the check valve is smooth and seamless. It is also designed for steam and CIP systems.

Sanitary hygienic stainless steel check valves are widely installed into the pipelines of processing and production lines of food, dairy, beverages, beer, pharmaceutical and chemical mediums. The processing systems are:
* C.I.P. (clean in place) facilities and systems
* Liquid blending and mixing systems
* Aseptic dosing systems
* Some other pipe lines with corrosion medium flows.

Working Principle:
Automatic open and close the valve disc through the flow pressure of medium, the pressure of the lower part of the valve stem exceeds the pressure of the upper part or spring pressure, valve disc open, the pressure of both ends returned to balance, when the valve disc closed, the media flows back.

Main Parts:

Item Part Name Material Q'ty
1 Valve cover 304 / 316L stainless steel 1
2 Seal / Gasket VQM / EPDM / FPM 1
3 Petal 304 / 316L stainless steel 1
4 Clamp 304 / 316L stainless steel 1
5 Spring 304 / 316L stainless steel 1
6 Valve disc Plastic 1
7 O ring VQM / EPDM / FPM 1
8 Valve body 304 / 316L stainless steel 1
Main Specifications:
Product Name: Sanitary Hygienic Non Return Check Valve
Material: 304 or 316L stainless steel, forged or casting
Standard: 3A, ASME BPE, EN 10357, DIN 11850, DIN 11866, ISO 1127, ISO 2037
Size: 1/2" - 4" or DN15-DN100
Thickness: 1.2mm - 2mm
Connection Way: Weld, clamp, thread, union, flange
Seal Material: Silicone, EPDM, Viton, NBR
Surface Finish: Ra≤0.8
Working Temperature: -10°C to +120°C
Opening Pressure: 0.3 Bar (DN25), 0.2 Bar (DN32/40), 0.1Bar (DN-50/100)
Packing: Bubble bag + carton + plywood case

Features and Advantages:
• Valve cover and seat can be fixed by tri clamp, or union connection method
• Fast and easy assembly, valve parts can be replaced immediately after making us aware of the issue
• Highly engineered connection design, high sealing function, no leakage problem
• Simple and fast installation, convenient for daily repair and maintenance
• Highly hygienic grade, CIP/SIP process friendly
• Installed in vertical pipelines to prevent fluids from flowing backwards

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