Threaded Check Valves
Ductile IRON Threaded Swing Check Valve
General Service
Designed for standard oil and gas applications, this valve provides reliable backflow prevention in low to mid-pressure systems. Built with durable internals for consistent performance in everyday field conditions.
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Highlights
- Ductile iron body (A395); A351-CF8 stainless steel disc; Viton B seat
- Sizes 1″ through 4″ female NPT; pressure ratings 300 to 2,000 PSI depending on size
- Designed for salt water and corrosive production fluid applications
- NACE MR0175-2009 compliant; tested per API 598; threads per ASME B1.20.1
- Temperature range -20°F to 400°F
Application
- Oil and gas production manifold backflow prevention
- Salt water disposal and corrosive fluid check valve service
Carbon Steel Threaded Swing Check Valve
High Pressure Service
Built for higher pressure threaded systems, this valve delivers dependable backflow protection in more demanding environments. Designed for strength, serviceability, and long-term performance in the field.
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Highlights
- WCB carbon steel body and bonnet; A351-CF8 stainless steel disc; Viton B seat and O-ring
- Sizes 1″ through 3″ female NPT; pressure ratings 2,160 to 5,000 PSI depending on size
- Top-entry design for in-line inspection and repair without line removal
- NACE MR0175/ISO 15156-1 compliant; design per ASME BPVC Section VIII Div. 1
- Tested per API 598; temperature range -20°F to 400°F; threads per ASME B1.20.1
Application
- Oil and gas production manifold and flowline backflow prevention
- High-pressure threaded check valve service on wellheads and production equipment
Stainless Steel Threaded Swing Check Valve
Corrosive Service
Engineered for corrosive and harsh media, this valve offers reliable backflow prevention where material integrity is critical. Ideal for applications involving saltwater, chemicals, or aggressive fluids.
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Highlights
- CF8M stainless steel construction
- Viton seals; o-ring style design
- Threaded end connections
- Sizes: 1/2″ to 2″
- Pressure class: 1,000 PSI NSCWP
- Design per ASME B16.34
- Tested per API 598
Application
- Oil and gas production manifolds
- Corrosive fluid service
- Salt water and chemical injection lines
- Separator and treater piping
- General production line backflow prevention