The A350 Gr.LF2 Full Bore Ball Valve 150LBS is a low-temperature quarter-turn valve engineered for maximum flow efficiency and reliable shut-off in cryogenic services. The forged body is constructed from A350 Gr.LF2 low-temperature carbon steel, heat-treated to ensure exceptional impact toughness at sub-zero temperatures down to -46°C (-50°F). The full bore (full port) design eliminates flow restrictions, allowing unrestricted pigging and minimal pressure drop—critical for pipelines, LNG terminals, and petrochemical plants. Rated for Class 150, it offers moderate-pressure capability with the durability of a quarter-turn mechanism, providing rapid open/close operation, bubble-tight sealing, and extended service life in demanding low-temperature environments.
Technical Attributes & Specifications
1. **Body Material:** ASTM A350 Grade LF2 (Forged Low-temp Carbon Steel).
2. **Port Design:** Full Bore (Full Port) for unobstructed flow.
3. **Pressure Class:** ASME Class 150 (150LBS).
4. **Service Temperature:** Reliable performance down to **-46°C**.
5. **Operation:** 90-degree (Quarter-turn) lever or gear operation.
6. **Ball Material:** Stainless steel (SS304/SS316) or LF2 with ENP coating.
7. **Seat Material:** Soft-seated (PTFE, RPTFE, or Devlon) for bubble-tight shut-off.
8. **Design Standard:** API 6D, ASME B16.34, or BS 5351.
9. **Fire Safety:** Fire-safe design certified to API 607 or API 6FA.
10. **Connection Type:** Flanged (Raised Face) per ASME B16.5.
11. **Face-to-Face Dimension:** Compliant with ASME B16.10.
12. **Stem Design:** Blow-out proof stem for enhanced operator safety.
13. **Anti-Static Device:** Built-in grounding between ball, stem, and body.
14. **Sealing:** Double-D or flatted stem design to indicate valve position.
15. **Impact Testing:** Verified by Charpy V-Notch testing per ASTM A350.
16. **Body Construction:** 2-piece or 3-piece bolted body design.
17. **Top Flange:** ISO 5211 mounting pad for easy automation.
18. **Testing Standards:** Hydrostatic and pneumatic testing per API 598/API 6D.
19. **Low Emissions:** Stem packing designed to meet fugitive emission standards.
20. **Applications:** Gas processing, LPG/LNG handling, and Arctic-grade pipelines.
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
