Stainless Steel Tilting Disc Check Valve

NSV Stainless Steel Tilting Disc Check Valve

This tilting disc check valve is engineered for reliable automatic flow control in high-pressure, high-temperature, and corrosive service. The standard body material is CF8C stainless steel, offering excellent resistance to intergranular corrosion and good strength at elevated temperatures.

The valve features a tilted-disc design that ensures low pressure drop during forward flow and rapid, stable closure under reverse flow conditions. A spring-assisted mechanism provides positive shut-off even at low differential pressures. Its compact Y-body configuration simplifies installation and maintenance, especially in space-limited piping systems.

Key Features

Body Material CF8C stainless steel; other stainless options available (e.g., CF8, CF3, CF8M, CF3M)

Valve Type Tilted-disc check valve

Operation Automatic, spring-assisted closing

Pressure Rating Class 150 to Class 2500

Size Range 2" to 30" (DN50 to DN750)

Design Standard API 6D, ASME B16.34

End Connection Flanged (RF, RTJ) or Butt-Weld (optional)

Operation & Advantages

During normal flow, the disc lifts smoothly with minimal turbulence. When flow reverses or pressure drops, the disc closes quickly due to hydraulic force and spring assistance, effectively preventing backflow and mitigating water hammer. This design delivers long-term reliability and low maintenance in demanding services.

CF8C excels in high-temperature and mildly aggressive environments. Grades like CF3M (316L) enhance resistance to chlorides and acids, making the valve suitable for chemical, marine, and sour service applications. Fire-safe performance is verified per API 607.

Typical Applications

The valve is widely used in oil & gas pipelines, chemical and petrochemical plants, power generation feedwater and steam systems, LNG terminals, seawater injection and cooling circuits, refinery process lines, and offshore platforms where dependable non-return function, high pressure capability, and corrosion resistance are essential.

Quality Control & Service

Valve design and manufacturing comply with ASME B16.34, and sealing performance is verified through API 607 fire-safe testing. All materials are fully traceable, and EN 10204 3.1 material test certificates (MTC 3.1) are provided with each shipment. Technical support includes sizing, selection guidance, and field commissioning assistance.

FAQ

1.Q:Is there have MOQ?

 A：No.we can accept 1set,but there have additional cost $150.00(process of export) if the order value within $2000.00.
2. Q:How can I get your company catalog?

A: For your reference, basic catalogue is same as "Download>E-Catalog” of homepage. If you need printed material or request more specific data like PQ material, please contact sales team.

3. Q:Do you have any valve in stock?

A:There have a lot of GGC valves(2”&within) in stock,and that can delivery within one week.

4. Q:Do you have customized valve?

A:Yes,we can supply customized valves.