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Casting Trunnion Ball Valve

Trunnion-mounted for large diameter and high pressure pipelines.

Ball Valve Series

Casting Trunnion Ball Valve

The trunnion-mounted ball is fixed by upper and lower bearings, so spring-loaded seats push against the ball — keeping torque low and sealing stable on large diameter, high pressure pipelines up to 40" Class 600 and beyond.

As part of the VTXFLOW ball valve range, every casting trunnion ball valve is produced under our certified quality system — from in-house casting and CNC precision machining to 100% pressure and seat-tightness testing before shipment, with EN 10204 3.1 material certificates supplied.

  • Trunnion design keeps torque low on large sizes
  • Double block & bleed (DBB) capability
  • Emergency sealant injection for seat and stem
  • API 6D with cavity self-relief seats
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Casting Trunnion Ball Valve
Casting Trunnion Ball Valve — VTXFLOW Ball Valve Series

Technical Specifications

Size Range1/2" – 40" (DN15 – DN1000)
Pressure ClassASME 150 – 2500 LB / PN16 – PN160 / 10K – 20K
Body MaterialsWCB, CF8, CF8M, CF3, CF3M, Duplex, A105, F304, F316
Design StandardsAPI 6D, API 608, ISO 17292, DIN 3357, JIS B2071
End ConnectionsRF, RTJ, FF, BW, SW, NPT

Typical Applications

Oil & gas pipelinesChemical processingPower stationsWater treatmentLNG terminals

How to Order — What to Specify

  1. Size and bore: full bore or reduced bore
  2. Pressure class: ASME 150–2500 / PN16–PN160 / JIS 10K–20K
  3. Body and trim materials (WCB, CF8M, A105, F316, Duplex...)
  4. Seat type: soft (PTFE / RPTFE / PEEK) or metal hard-faced
  5. End connections: RF, RTJ, BW, SW or NPT
  6. Operation: lever, gear, electric or pneumatic actuator
  7. Design standard: API 6D, API 608, ISO 17292 or DIN
  8. Options: fire-safe API 607, NACE MR0175, DBB, stem extension

Every casting trunnion ball valve is shell and seat tested to API 598 / ISO 5208 before shipment and delivered with EN 10204 3.1 material certificates. PMI, NDE and third-party inspection (SGS / BV) are available on request.

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Interested in the casting trunnion ball valve? Tell us your size, pressure class, material, standard and quantity — our engineers respond within 24 hours.

Your inquiry goes directly to our sales team. You can also email us at SALES@VTXFLOW.COM.