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600LBS Flanged Ball check valve F304 F316

The 600LBS Flanged Ball Check Valve F304/F316 is a high-pressure, non-return valve designed for automatic backflow prevention in demanding industrial systems. Constructed from F304 (CF8) or F316 (CF8M) stainless steel castings, it offers excellent corrosion resistance and durability across a wide range of aggressive media. The ball check design utilizes a spherical ball that seats against a precision-machined seal, providing bubble-tight shut-off with minimal pressure drop during forward flow. Rated for Class 600, it is capable of handling high-pressure applications in oil and gas, petrochemical, chemical processing, and power generation. The flanged ends ensure secure, leak-proof installation, while the compact design allows for vertical or horizontal mounting, making it an ideal choice for systems requiring reliable, low-maintenance flow reversal protection.

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 Technical Attributes & Specifications


1.  **Body Material:** Forged Stainless Steel ASTM A182 F304 or F316.

2.  **Pressure Class:** ASME Class 600 (600LBS).

3.  **Connection Type:** Flanged (Raised Face or Ring Type Joint) per ASME B16.5.

4.  **Ball Material:** Solid Stainless Steel (SS304/SS316) or hollow ball for low-pressure seating.

5.  **Design Standard:** ASME B16.34, API 6D, or BS 5352.

6.  **Face-to-Face:** Compliant with ASME B16.10.

7.  **Seating:** Metal-to-metal or Resilient (Viton/PTFE) for bubble-tight shut-off.

8.  **Flow Direction:** Unidirectional (indicated by flow arrow on body).

9.  **Self-Cleaning:** Rotating ball design prevents sediment accumulation.

10. **Service Temperature:** -196°C to +538°C (depending on seal material).

11. **Bonnet Type:** Bolted cover for easy internal inspection and ball replacement.

12. **Gasket:** Spiral wound SS316 with Graphite or PTFE filler.

13. **Full Bore:** Large flow area minimizes pressure drop ($\Delta P$).

14. **Vertical/Horizontal:** Suitable for vertical (upward) or horizontal installation.

15. **Corrosion Resistance:** Excellent against organic acids, salts, and steam.

16. **Anti-Vibration:** Heavy forged body absorbs system vibrations effectively.

17. **Testing Standards:** Shell and seat pressure testing according to API 598.

18. **Surface Finish:** Precision machined internal surfaces for smooth ball travel.

19. **Durability:** High resistance to "chatter" or slamming compared to swing checks.

20. **Applications:** Chemical processing, high-pressure water injection, and oil refining.


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