ASTM A351 CF8M Swing Check Valve, 1 Inch, 3000 PSI, FP, NPT
- Product Name:
- Oil Field Swing Check Valve
- Body Material:
- ASTM A351 CF8M
- Size:
- 1 Inch, DN25
- Pressure:
- 3000 PSI
- End Connection:
- NPT
- Port:
- FP, Full Port
Key Specifications / Features
This ASTM A351 CF8M Swing Check Valve features a full port design with a stainless steel body, offering excellent durability and corrosion resistance. With a compact 1-inch (DN25) size and a pressure rating of 3000 PSI, it is ideal for high-pressure applications. The valve is equipped with NPT threaded ends, ensuring easy installation and secure connections.
The top-entry swing check valve is available in ductile iron, carbon steel, and aluminum bronze, with sizes ranging from 1 inch to 4 inch. It features stainless steel discs as standard and is designed with an improved bonnet removal process for easier maintenance. The patented Hinge-Works feature extends the valve's service life.
This valve is ideal for a wide range of industrial applications, including hydraulics, pneumatics, pumps, and plumbing systems. It is particularly suited for oil and gas production lines where backflow prevention is essential. The swing check valve offers a simple, efficient solution with easy repairability, thanks to its top-entry design, allowing convenient access to internal components. Its primary function is to prevent backflow within the pipeline.
Technical Specification
» Size Range: NPS 1–4 Inch (DN25–DN100)
2 Inch, 3 Inch, 4 Inch: Equipped with a plug on the cap
1 Inch: Without a plug on the cap
» Pressure Rating: 300–5000 PSI WP
» Disc Material: Stainless Steel SS 304
» Seat and Seal: Viton
» Port: Full Open
» NACE MR-0175: Corrosion resistance for sour gas environments
» Threaded Ends: ANSI B1.20.1 (NPT)
» Inspection and Testing: According to API 598
» Temperature Range: -20°C to 80°C

Main Parts and Materials
| No. | Part Name | Material |
| 1 | Body | ASTM A351 CF8M |
| 2 | Disc | ASTM A351 CF8M |
| 3 | Seat | VITON, METAL |
| 4 | Bonnet | ASTM A351 CF8M |
| 5 | Gasket | VITON |
| 6 | Plug | ASTM A193 B8M |
Main Dimensions (mm)
| Size | Port | End | Pressure | L | H | d | NPT | Weight(kg) |
| 1 Inch | FB | FNPT | 3000 PSI | 108 | 82 | 25.4 | 11.5NPT | 2.66 |
| 2 Inch | FB | FNPT | 3000 PSI | 160 | 104 | 50.8 | 11.5NPT | 5.50 |
| 3 Inch | FB | FNPT | 3000 PSI | 210 | 136 | 77 | 8NPT | 8.99 |
| 4 Inch | FB | FNPT | 3000 PSI | 254 | 198 | 101 | 8NPT | 26.20 |



