Cast Steel Swing Check Valve 900LBS - API 6D, BS 1868, 2" to 24"
Tengs Valve supplies high-quality Cast Steel Swing Check Valves (Non-Return Valves) for ANSI Class 900LBS, manufactured to API 6D, ANSI B16.34, and BS 1868 standards. These high pressure swing check valves feature bolted bonnet or pressure sealing bonnet, swing type disc design with flanged (RF, RTJ) or butt weld (BW) ends. Available in sizes 2″ to 24″ (DN50 to DN600). Materials include carbon steel (WCB, LCB), stainless steel (CF8, CF8M, CF3, CF3M), alloy steel (WC6, WC9, C5, C12), and duplex stainless steel (4A, 5A). Trim options include 13Cr, half Stellite, and full Stellite. Ideal for oil & gas, chemical, power generation, and water treatment high pressure pipeline systems. Industrial cast steel high pressure swing check valve supplier and exporter.
Specifications for Swing Check Valve 900LBS (Flanged, BW Ends)
• Design & Manufacture: API 6D, ANSI B16.34, BS 1868
• Construction: Bolted Bonnet, Pressure Seal Bonnet, Swing Type Disc
• Size Range: 2″ to 24″ (DN50 to DN600)
• Pressure Ratings: ANSI 900LBS / Class 900 / PN150
• End Connections: Flanged (RF, RTJ), Butt Weld (BW)
• Body Materials: WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12, 4A, 5A or Equivalent
• Trim Materials: Various trim materials available to suit service conditions
• Sour Service: NACE MR 0175 on Request
Swing Check Valve 900LBS Main Parts and Materials
| Part Name | Material | ||
|---|---|---|---|
| Carbon Steel (WCB) | Stainless Steel (CF8 / CF8M) | Alloy Steel (WC6 / WC9) | |
| Body | A216 WCB | A351 CF8 / CF8M | A217 WC6 / WC9 |
| Bonnet / Cover | A216 WCB | A351 CF8 / CF8M | A217 WC6 / WC9 |
| Disc | WCB + 13Cr / STL | CF8 / CF8M | WC6 / WC9 + 13Cr / STL |
| Seat | 13Cr / STL | SS304 / SS316 | 13Cr / STL |
| Hinge Pin | A182 F6a | A182 F304 / F316 | A182 F6a / F11 |
| Bolts/Nuts | A193 B7 / A194 2H | A193 B8 / A194 8, B8M / 8M | A193 B7 / A194 2H |
| Gasket | Graphite / PTFE | Graphite / PTFE | Graphite / PTFE |
Reference: API 6D, BS 1868. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
Reference: API 6D, BS 1868. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
Industrial Check Valve Dimension Details
Typical Applications of 900LBS Swing Check Valve
• Oil & gas transmission pipelines: high pressure crude oil, natural gas, and refined product lines.
• Refinery and petrochemical plants: process lines requiring reliable non-return protection.
• Power generation: high pressure steam, feedwater, and cooling water systems.
• Water treatment and pump discharge: preventing backflow and protecting pumps.
• Sour service: available with NACE MR 0175 compliance on request.
FAQ - Cast Steel Swing Check Valve 900LBS
Q1: What is a 900LBS swing check valve?
A: A 900LBS swing check valve is a non-return valve designed for ANSI Class 900 pressure rating. It uses a swing type disc that opens with forward flow and closes automatically to prevent backflow. It is manufactured to API 6D, ANSI B16.34, and BS 1868 standards.
Q2: What is the pressure rating of ANSI Class 900?
A: ANSI Class 900 is a high pressure rating, approximately equivalent to PN150. It is suitable for high pressure oil, gas, petrochemical, and power generation pipeline systems.
Q3: What materials are available for 900LBS swing check valves?
A: Common body materials include WCB, LCB, CF8, CF8M, CF3, CF3M, WC6, WC9, C5, C12, 4A, and 5A. Trim materials such as 13Cr, half Stellite, and full Stellite are available to suit different service conditions.
Q4: What end connections are available?
A: 900LBS swing check valves are available with flanged ends (RF or RTJ) and butt weld (BW) ends. Flanged RTJ is commonly used for high pressure applications.
Q5: Is the 900LBS swing check valve suitable for sour service?
A: Yes. NACE MR 0175 compliance is available on request for sour service applications. Please specify this requirement when requesting a quotation.
Q6: What is the difference between bolted bonnet and pressure seal bonnet?
A: Bolted bonnet is suitable for general high pressure service and is easy to maintain. Pressure seal bonnet uses internal pressure to tighten the seal, making it more suitable for very high pressure and high temperature applications. Both options are available for 900LBS swing check valves.
Get a Fast Quote for 900LBS 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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