API 6D Standard Trunnion Mounted Ball Valve with Double Block and Bleed and Fire-Safe Anti-Static Design

The API Standard Trunnion Mounted Ball Valve series is engineered for high-pressure industrial applications requiring exceptional reliability and safety. Compliant with API 6D and ASME B16.34 standards, these valves are designed for heavy-duty service in oil and gas transmission, petrochemical plants, and power generation.

The trunnion-mounted design features a fixed ball with floating seats, ensuring consistent sealing performance and significantly lower operating torque compared to floating ball valves, especially in large-diameter and high-pressure systems.

• Trunnion-Supported Ball: The ball is supported by high-strength bearings at the top and bottom, distributing hydraulic loads to the body and ensuring stable operation.
• Double Block and Bleed (DBB): Provides independent sealing on both upstream and downstream sides, allowing for safe cavity venting and integrity testing.
• Automatic Cavity Relief: Integrated seat design automatically relieves excess pressure from the body cavity to the downstream pipeline.
• Low Operating Torque: Self-lubricating bearings and advanced seat materials reduce friction, making them ideal for automated actuation.
• Blow-out Proof Stem: High-security stem design prevents stem ejection under system pressure.
• Fire-Safe & Anti-Static: Engineered to meet API 607/API 6FA standards for fire safety and anti-static protection.

• Design: API 6D, ASME B16.34
• Face-to-Face: ASME B16.10, API 6D
• Flange Dimensions: ASME B16.5, MSS SP-44
• Butt-Weld Ends: ASME B16.25
• Inspection & Testing: API 6D, API 598

• Face-to-Face (L): From 292mm (2") to 1397mm (28")
• Flange Diameter (D): Up to 1035mm for 28"
• Weight: Ranging from 25kg (2") to 5000kg (28")

• Face-to-Face (L): From 292mm (2") to 1549mm (28")
• Flange Diameter (D): Up to 1073mm for 28"
• Weight: Ranging from 25kg (2") to 6500kg (28")