Top Entry Trunnion Ball Valve, API 6D, WCB, 6 * 4 IN, 600 LB

Key Specifications / Features

The Top Entry Trunnion Mounted Ball Valve, built to API 6D standards, features an ASTM A216 WCB body with a one-piece design. It has a 6 * 4-inch (DN150 x DN100) size, Class 600 LB, and PN100 pressure rating. This valve is equipped with a Double Block and Bleed (DBB) function, ensuring safe and reliable operation in high-pressure systems.

Top-entry trunnion ball valves are ideal for both offshore and onshore systems. Their design makes operation and maintenance easy, allowing for in-line disassembly, even in tight spaces, for trim inspection or repairs. These valves provide excellent corrosion resistance and strong sealing performance at both high and low pressures. They are made from a single forged or cast piece, with two independent seats for bi-directional sealing. Each valve is built according to customer specifications and international standards.

Technical Specifications

» Size Range: NPS 2-60 Inch (DN50-DN1500)
» Design Pressure: Class 150-2500 LB (PN10-PN420)
» Materials: Cast Carbon Steel, Stainless Steel, Duplex, or Other Special Alloys (ASTM A216 WCB, WCC, A352 LCB, LCC, A351 CF8, CF8M, CF3, CF3M)
» Ends Connections: Flanged RF, RTJ, Welded BW
» Operation: Handle, Worm Gear, Electric, Pneumatic
» Temperature Range: -46°C to 200°C
» Medium: Water, Gas, Oil
» Standards:
   Design and Manufacture: API 6D, GB/T 19672, GB/T 12237
   Face-to-Face Dimensions: ASME B16.10, GB/T 12221
   Flanged Connections: ASME B16.5, ASME B16.47, GB/T 9113, JB/T 79
   Test and Inspection: API 598, API 6D, GB/T 13927
   Butt Welded End: ASME B16.25
   Fire Safety Standards: API 607, API 6A

Product Features

» One-piece flange top-entry trunnion design
» Double block and bleed (DBB/DIB-1/DIB-2) design options
» One-piece ball and stem for precise positioning
» Anti-blowout, one-piece ball/stem design
» O-rings and fire-safe packing to prevent leakage
» Corrosion-resistant, low-friction bearings
» Wave springs for upstream and downstream sealing
» Stainless steel sealant injection fittings for emergency stem or seat sealing
» Inline repairable with a well-designed seat retainer
» Minimized torque for easy valve operation
» Anti-static grounding between ball, stem, and body
» Integral top works with direct mounting pad
» Optional locking device or stem extension
» Emergency rescue and valve lubrication features
» Low torque operation for smooth functioning