BS 5351 Trunnion
Ball Valve, API 6D, 2-1/2 Inch, CL 2500 LB, 3pcs Bolted Body, Side Entry.
Valve Description
1811177 Trunnion Mounted Ball Valve
Design Standard: API 6D, BS 5351
Nominal Size: 2-1/2 Inch, DN65
Nominal Class: CL 2500 LB, PN420
Body Material: Carbon Steel ASTM A105N or ASTM A350 LF2
Structure: 3pcs Body, Side Entry, Bolted Bonnet, Soft Seat
Seat Insert: RPTFE, DEVLON, NYLON, PEEK
Bore Type: Full Bore or Reduced Bore
Operation: Lever/Gear
Test and inspection: API 598, API 6D
Face to Face: ASME B16.10
End Connection: RTJ Flanged
Trim Material: ASTM A182 F6A, ASTM A182 F304, ASTM A182 F316, ASTM A182 F51, ASTM A182 F53, ASTM A182 F55, ASTM A105+ENP, ASTM A350 LF2+ENP
Key Features: Double Block & Bleed (DBB), Anti-static Device, Fire-Safe Design, Anti-Blowout Stem, Emergency Sealant Injection, Low Emission (Optional), DIB (Optional).
Product Range
| Body Material: |
Carbon Steel, Stainless Steel, Alloy Steel |
| Normal Diameter: |
1/2 Inch - 48 Inch (DN15 - DN1200) |
| Pressure Range: |
150 - 2500 LB |
| Operation: |
Manual (lever, gear), Pneumatic Actuator, Motor Actuator |
| Working Temperature: |
-26°C to +150°C |
| End Connection: |
RF, RTJ, BW, Hub |
| Body Types: |
1 pc body, 2pc split body, 3pcs split body |
| Body&Bonnet Connection: |
Bolted Bonnet, Full Welded Bonnet(for Hazardous service need longer working life with less leakage point) |
Trunnion Mounted Ball Valve (TMBV) Introduction
The trunnion mounted ball valve is designed for on-off applications in pipelines. This quarter-turn valve opens when the ball’s bore aligns with the flow inlet and closes with a 90-degree rotation, blocking the flow. It can be locked in various positions for fluid control.
The ball is held by a stem and trunnion, with spring-loaded metal seat retainers and soft seat inserts ensuring a seal. It supports a wider range of sizes and pressures compared to floating ball valves, with lower operational torque, which reduces actuator costs.
