Oil Field Swing Check Valve, ASTM A395, 2 IN, NPT
- Product Name:
- Oil Field Swing Check Valve, Full Port
- Body Material:
- Ductile Iron ASTM A395
- Size:
- 2 Inch
- End Connection:
- NPT Threaded
- Nace:
- NACE MR0175
- Disc Material:
- ASTM A351 CF8
Key Specifications / Features
The Oil Field Swing Check Valve, manufactured with a Ductile Iron ASTM A395 body and ASTM A351 CF8 disc, is designed for reliable backflow prevention in oilfield applications. It features a 2-inch size, a 2000 PSI pressure rating, and NPT threaded connections for easy installation. Fully compliant with NACE MR0175, this valve is resistant to sulfide stress cracking.
This 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 comes standard with stainless steel discs for enhanced durability. The check valve features a redesigned bonnet for easier removal, improving maintenance efficiency. Its patented Hinge-Works feature ensures an extended service life.
The valve is suitable for a wide range of industrial applications, including hydraulics, pneumatics, pumps, and plumbing. Specifically, the Oil Field Check Valve is an excellent choice for oil and gas production lines where backflow prevention is critical. The swing check design offers simplicity and easy maintenance, with convenient top entry access to internal components. The primary function of this check valve is to prevent backflow in pipelines, ensuring smooth and reliable operation.
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: 300–2000 PSI WP
» Body Material: ASTM A395 Ductile Iron
» Disc Material: Stainless Steel SS 304
» Temperature Range: -20°C to 80°C
» 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

Main Parts and Materials
| No. | Part Name | Material |
| 1 | Body | ASTM A395 |
| 2 | Disc | ASTM A351 CF8 |
| 3 | Seat | VITON |
| 4 | Bonnet | ASTM A395 |
| 5 | Gasket | VITON |
| 6 | Plug | ASTM A105 |
Main Dimensions (mm)
| Size | Port | End | Pressure | L | H | d | NPT | Weight(kg) |
| 1" | FB | FNPT | 300~2000 | 108 | 82 | 25.4 | 11.5NPT | 2.66 |
| 2" | FB | FNPT | 300~2000 | 160 | 104 | 50.8 | 11.5NPT | 5.50 |
| 3" | FB | FNPT | 300~2000 | 210 | 136 | 77 | 8NPT | 8.99 |
| 4" | FB | FNPT | 300~2000 | 254 | 198 | 101 | 8NPT | 26.20 |

