Ball Valves Β· Trunnion Mounted Ball Valves
SS316L Trunnion Ball Valves (API 6D)
The large-diameter anchor of the SS316L ball-valve axis: an API 6D full-bore trunnion-mounted execution at 24 inch (DN600), 900LB (PN150), SS316L ball and stem, nylon seat, butt-weld ends with 600 mm API 5L X60 pups and gas-over-oil actuation with remote telemetry (model LV 14 TBV 06). Trunnion mounting is what lets a 24-inch ball carry Class 900 without the seat load and torque of a floating design.
Part of the Trunnion Mounted Ball Valves family
Last updated: 2026-11
Specifications
| size range | 24 Inch (DN600) |
|---|---|
| pressure class | 900LB (PN150) |
| seat materials | NYLON |
| ball materials | Stainless Steel SS316L |
| stem materials | Stainless Steel SS316L |
| operation | Gas Over Oil Actuator with remote telemetry |
| design standards | API 6D |
| testing standards | API598/API 6D |
| model designation | 24 Inch, 900LB |
| design type | Ball Valve, Full Bore, Trunnion Mounted |
| end connection | butt welded, Welded Ends C/W 600mm pups API 5L X60 12.7mm WT |
| body material options | ASTM A105N, A182 F304, A182 F316, A182 F304L, A182 F316L |
| seat options | Soft Seated (PTFE/RPTFE /PEEK/NYLON/DEVLON), Metal Seated |
| fire safe test | API607, API6FA |
| special design | NACE MR-01-75 |
| bore options | Full or reduced bore |
| body construction | Bolted Body β Two Piece/Three Piece and Fully Welded |
| operator options | Lever/Wrench, Gear, Actuator (Pneumatic, Hydraulic, Electric, Motorized, Electro-Hydraulic, Gas over Oil) |
| sealing features | Anti- Static Device, Blow- Out Proof Stem, Fire Safe Design, Emergency Sealant Injector, DBB / DIB-1 / DIB-2 |
Application & selection guidance
Specify this execution class for large-diameter stainless transmission and process headers to API 6D: SS316L for corrosion duty, full bore for pigging, welded ends for buried or fully-welded pipelines, and actuated operation for remote installations. Confirm the seat material (nylon here) against medium temperature - the polymer seat, not the SS316L body, sets the temperature window.
Frequently asked questions
Why trunnion mounting at 24 inch and 900LB?
A floating 24-inch Class 900 ball would press the full line load onto the downstream seat and need enormous operating torque; trunnion mounting fixes the ball on bearings so seat load and torque stay manageable - the standard design route for large-diameter high-class ball valves under API 6D.
What are the exact specifications of the benchmark model?
Model LV 14 TBV 06: 24 inch (DN600), 900LB (PN150), full bore, trunnion mounted, SS316L ball and stem, NYLON seat, API 6D, butt-welded ends with 600 mm API 5L X60 pups of 12.7 mm wall, gas-over-oil actuator with remote telemetry.
Is this execution pipeline-service compliant?
API 6D is the pipeline-valve standard covering trunnion design, welded ends and testing; the welded ends with X60 pups are intended for direct field welding into an API 5L pipeline. Verify additional pipeline requirements (double block and bleed, sealant injection) at enquiry.
Ordering & documentation
Documents
Ask for the documentation set you need with the inquiry β typical items for this execution (material certificates, test reports to the listed inspection standard, dimensional drawings) are confirmed and supplied with the quotation.
Quotation
A quotation-ready inquiry states: nominal size and pressure rating, body and seat material preference, end connection, operation, and the service medium with temperature. Typical values on this page are benchmark reference ranges; the binding values are confirmed at quotation.
Sample & supply
Supply terms, order quantities and lead time are agreed per order β state the destination country and required schedule with the inquiry.
Storage & shipping
Store valves with seats and seals protected from UV, ozone and deformation, keep end-face protectors on until installation, and for elastomer- or PTFE-seated executions avoid prolonged outdoor storage β seat compounds age fastest in direct sunlight and freezing conditions.
Knowledge: selection guides
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