Real Factory 3PC Trunnion Ball Valve Built To API Standards

I. Real Workshop View: Mass‑Production 3‑Piece Trunnion Ball Valve Finished Goods

Inside J‑VALVES manufacturing workshop, batches of finished 3PC trunnion‑mounted ball valves are neatly stacked on wooden pallets. The worm‑gear operator, flange ends and heavy‑duty three‑piece valve body are clearly visible. Every valve undergoes hydro‑pneumatic test and visual inspection before delivery for oil & gas, chemical and power‑plant projects.

Different from floating ball valves, trunnion‑supported ball structure keeps the ball fixed by upper‑lower shafts. Media pressure will not push ball against seats. It delivers low operating torque and stable sealing under high‑pressure service, widely adopted for process pipelines and long‑distance transmission lines. The displayed model adopts flange connection with worm‑gear reducer. It can be further fitted with pneumatic or electric actuators for automatic control for large‑size high‑pressure conditions.

II. Built to Authoritative API Standards for Harsh Industrial Safety

API 6D Core Specification for Pipeline Valves

This series of 3‑piece trunnion ball valves is strictly designed, manufactured and type‑tested according to API 6D (American Petroleum Institute standard for pipeline valves), also compliant with ASME B16.34 pressure‑temperature rating and API 598 valve inspection & testing standard, meeting strict industry requirements for oil and gas sector.

1. Three‑piece bolted body structure, easy for on‑site maintenance without full valve removal from piping

2. Full‑port / reduced‑port optional, full‑port version supports pigging service

3. Optional API 607 fire‑safe & anti‑static construction. Metal‑to‑metal backup sealing prevents leakage under fire hazard

4. Bi‑directional seating with spring‑loaded preload, maintains tight sealing both in low‑pressure and high‑pressure working conditions

Material Options for Difficult Working Conditions

Body material choices include WCB cast carbon steel, A105 forged steel, CF8M stainless steel. Sealing options range from PTFE, PEEK soft seats to Stellite hard‑faced metal seats. Suitable for crude oil, natural gas, steam and corrosive chemical fluids. Pressure rating covers Class150‑2500LB for refinery, pipeline, power station and coal‑chemical custom‑built projects.

III. Key Benefits of 3PC Trunnion Mounted Ball Valves for Industrial Projects

1. High‑pressure Durability: Trunnion support minimizes seat abrasion, extends service life for continuous‑cycle pipeline service.

2. Easy Field Maintenance: Three‑piece body design simplifies disassembly and repair, cuts long‑term operational cost.

3. Actuator‑Friendly: Stable break‑out torque. Worm‑gear unit enables simple upgrade to electric / pneumatic automation.

4. Authoritative Standard Compliance: API‑certified documentation supports tender submission and third‑party inspection.

IV. Typical Application Fields

API‑standard 3‑piece trunnion ball valves serve as critical isolation & shut‑off equipment for long‑distance oil‑gas pipelines, refinery & chemical plants, power‑plant process piping, coal‑chemical facilities, high‑pressure water treatment lines and storage tank farms.

V. J‑VALVES Industrial Valve Manufacturing Capacity

Founded in 2009, J‑VALVES delivers comprehensive industrial valve solutions. Full‑range in‑house control covers forging & casting, machining, assembly, hydro‑pneumatic test and final packing. We provide custom‑built valves per project drawings, complete data sheets and test reports for bulk order delivery.

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Contact our engineering team for detailed datasheets, quotation and project‑oriented solution of 3PC trunnion mounted ball valves.