Fire Safe Double Isolation Trunnion Mounted Ball Valve designed for critical pipeline applications requiring maximum safety and reliability. This valve features advanced double isolation and bleed capabilities for superior performance in demanding industrial environments.

• Construction Options: Cast type with 2-piece split body or forged type with 3-piece body design
• Material Selection: WCB, CF8, CF8M, CF8C, Duplex Stainless Steel, A105, F304, F316, and other materials available upon request
• Operation Methods: Manual handle (normal or lockable), gear operated, pneumatic, electric, or hydraulic actuation
• Pressure Ratings: Class 150, 300, 600, 900, 1500, and 2500
• Size Range: 1/2" to 18"
• Fire Safe Design: 100% pass rate on fire safe tests with secondary metal sealing capability

• Design: API 6D
• Flange Dimensions: ANSI B16.5
• Face to Face: ANSI B16.10
• Pressure Rating: ASME B16.34
• Fire Safe Standards: API 6FA/API 607
• Inspection & Test: API 6D/API 598

Dual sealing system with O-ring seals and metal graphite spiral wound gasket. In fire conditions, non-metallic materials burn away while the metal-to-metal contact maintains sealing integrity, fully compliant with API 607, API 6FA, BS 6755, and JB/T 6899 standards.

Separate stem design with integral T-type round shoulder, retained by gland for maximum safety and reliability.

Spring plus graphite anti-static device ensures electrical continuity between all metallic components, maintaining resistance below service requirements.

Standard on DN150 (NPS 6) and larger valves, optional on smaller sizes. Provides emergency sealing capability when O-rings are damaged.

Available with soft seat (metal to metal O-ring seal) for reliable sealing with low torque requirements across various media conditions.

Independent sealing on both sides with cavity pressure bleeding capability for pressure flushing and seat verification.

Double piston effect seat design creates resultant thrust that pushes seat ring against ball, requiring cavity pressure relief for optimal performance.

Ball fixed by trunnion and stem for sizes 4" and smaller, with trunnion plate support for sizes 6" and larger.