A351 CF8C Stainless Steel Swing Check Valve - ANSI 150Lb, API 594, 2" to 24"
Tengs Valve supplies high-quality A351-CF8C Stainless Steel Swing Check Valves (Non-Return Valves) for ANSI Class 150Lb / CL150, manufactured to ANSI B16.34, API 594, and API 6D standards with inspection and test per API 598. These swing check valves feature bolted bonnet, swing type disc design with double flanged ends (Raised Face / Flat Face). Available sizes 2″ to 24″ (DN50 to DN600). The body, bonnet, and disc are made of A351-CF8C stainless steel, providing excellent resistance to intergranular corrosion at elevated temperatures. Ideal for oil & gas, refinery, petrochemical, power generation, and high temperature pipeline systems. NACE MR 0175 available on request. Industrial CF8C stainless steel swing check valve supplier and exporter.
Specifications for A351 CF8C 150Lb Swing Check Valve
• Design & Manufacture: ANSI B16.34, API 594, API 6D
• Types of Disc: Swing Type
• Types of Bonnet: Bolted Bonnet, Bolted Cover
• Types of Bonnet Gasket: Stainless Steel + Graphite, EPDM, PTFE
• Types of End Connections: Flange
• Types of Flange Face: Raised Face (RF), Flat Face (FF)
• Types of Material: Stainless Steel, A351-CF8C
• Type of Trim: Stainless Steel
• Valve Size: 2 inch to 24 inch (DN50 to DN600)
• Valve Pressure: ANSI Class 150Lb, CL150
• Special Design: NACE MR 0175
• Inspection and Test: API 598
• Other materials and pressure ratings are available.
A351 CF8C Swing Check Valve Main Material List
| Part Name | Material |
|---|---|
| Body | A351-CF8C |
| Bonnet | A351-CF8C |
| Disc | A351-CF8C |
| Bolts / Nuts | Stainless Steel |
Reference: ANSI B16.34, API 594, API 6D, API 598. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
Industrial Check Valve Dimension Details
Typical Applications of A351 CF8C Swing Check Valve
• High temperature oil & gas pipelines: CF8C (347) stainless steel resists intergranular corrosion at elevated temperatures.
• Refinery and petrochemical plants: process lines with corrosive media and high temperature service.
• Power generation: steam, feedwater, and auxiliary systems requiring stable austenitic stainless steel.
• Chemical processing: corrosive chemical pipelines where 304/316 may not be sufficient.
• Sour service: available with NACE MR 0175 compliance on request.
• Low pressure non-return protection: ANSI Class 150Lb suitable for general industrial pipelines.
FAQ - A351 CF8C Stainless Steel Swing Check Valve 150Lb
Q1: What is A351 CF8C stainless steel?
A: A351 CF8C is a cast austenitic stainless steel equivalent to 347 stainless steel, containing niobium (columbium) as a stabilizing element. It provides excellent resistance to intergranular corrosion at elevated temperatures, making it suitable for high temperature and corrosive service.
Q2: What is the difference between CF8, CF8M, and CF8C?
A: CF8 is the cast equivalent of 304 stainless steel, CF8M is the cast equivalent of 316 stainless steel with molybdenum for improved corrosion resistance, and CF8C is the cast equivalent of 347 stainless steel with niobium stabilization for high temperature resistance. CF8C is preferred for elevated temperature service where intergranular corrosion is a concern.
Q3: What are the pressure rating and size range?
A: This A351 CF8C swing check valve is rated ANSI Class 150Lb (CL150), with sizes from 2″ to 24″ (DN50 to DN600). Other pressure ratings and sizes are available on request.
Q4: What end connections are available?
A: This valve is available with double flanged ends, Raised Face (RF) or Flat Face (FF), conforming to ANSI Class 150 flange dimensions. Other end connections are available on request.
Q5: What standards does this valve comply with?
A: Design and manufacture per ANSI B16.34, API 594, and API 6D. Inspection and test per API 598. NACE MR 0175 compliance is available on request for sour service.
Q6: What is the difference between swing check valve and lift check valve?
A: A swing check valve uses a hinged disc that swings on a hinge pin, suitable for larger sizes and horizontal pipelines. A lift check valve uses a piston / lifting disc that moves along the flow axis, suitable for smaller sizes and vertical pipelines with faster closing response.
Get a Fast Quote for A351 CF8C Swing Check Valve
Send us your size, pressure rating, material, end connection, and quantity. Our team will reply within 24 hours with price, drawing, and delivery time.
Email: sales@tengsvalve.com
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