As critical shut-off equipment for oil & gas transmission, petrochemical processing, coal chemical plant, cryogenic LNG storage and power industry, 3PC flanged trunnion ball valve features three-piece split body and trunnion-supported ball structure to guarantee stable zero leakage under fluctuating working pressure. Established with integrated forging, CNC machining and testing workshops, J-VALVES is a professional factory manufacturer of trunnion mounted ball valve, supplying worldwide EPC contractors, valve distributors and end-user factories with reliable customized valves, with plenty of successful global project references.
1. Structure & Specification Selection of J-VALVES 3PC Trunnion Ball Valve
The 3-piece split valve body is assembled with left end cap, central forged body and right flanged end cap locked by high-strength bolts. Different from integral cast ball valves, maintenance crews can replace seat and sealing parts on-site without detaching the whole valve from pipeline, cutting maintenance downtime by over 70%.
Body Material Option: A105 carbon steel, F304/F316 stainless steel, LF2 cryogenic steel; FBE anti-corrosion coating available for underground pipeline application. Pressure class from Class150 to Class2500, size range 1/2''~24'', flange conforms to ASME B16.5, DIN, JIS and GB standards.
Two Sealing Options: PTFE/RPTFE soft seat for clean medium under normal temperature; tungsten carbide hard-facing seat for high-temperature, abrasive and corrosive sour fluid service. All valves are certified API6D, API607 fire safe & anti-static, SIL3 certification available for critical safety piping.
Automation Compatibility: Standard ISO5211 top mounting pad allows direct installation of pneumatic, electric or hydraulic actuator for automatic DCS pipeline control.
2. Five Core Factory Advantages of J-VALVES Trunnion Ball Valve
Vertical integrated production & strict QC: Self-owned forging workshop controls raw material quality, ultra-precision ground ball with smooth sealing surface. Every finished valve passes 100% hydrostatic and air tightness test before shipment.
Flexible custom solution: In-house engineering team develops extended stem buried valve, cryogenic LNG dedicated trunnion valve and special alloy anti-corrosion valve, short lead time 7~15 working days for bulk order.
Complete international certifications: Full set of API6D, API607, SIL3, CE, PED certificates to satisfy global tender standards for international chemical giants like BASF and Shell.
Extended global after-sales service: 24-month warranty for all products (longer than average industry 12-month warranty), universal spare seal kits and remote online technical support via worldwide distributor network.
Standard fumigated wooden export packing: All valves are well protected and packed in heat-treated wooden cases for ocean freight, bulk container shipment to Middle East, Australia, North America and Southeast Asia; factory direct price helps clients save nearly 40% purchase cost vs European & US imported valves.
3. Three Global Real Successful Application Cases
Case 1: Saudi Arabia Sour Crude Oil Gathering Pipeline Project
Working condition: Class1500 high pressure, H₂S contained crude oil, -29℃ low ambient temperature. J-VALVES supplied F316 forged trunnion ball valve with Hastelloy hard seat and full API fire-safe design; total 286pcs packed in 3 fumigated wooden containers. After 3 years continuous operation with zero leakage, the customer placed repeated order for phase two pipeline construction.
Case 2: Fine Chemical Park Renovation Project in Jiangsu China
Replace leaky old 2-piece ball valves for hydrochloric acid & acetic acid corrosive pipeline with J-VALVES 316 stainless steel 3PC trunnion ball valve with passivated body and modified RPTFE seat. In-line maintenance design reduces annual park maintenance cost by 62%, the park selects J-VALVES as exclusive supplier for phase 3 expansion.
Case3: Queensland Australia LNG Refueling Station Cryogenic Project
Custom LF2 forged steel cryogenic trunnion ball valve for -196℃ LNG service, all units passed liquid nitrogen low-temperature test before wooden-case export. 200pcs have run smoothly for over 4 years without body crack or seal failure, J-VALVES becomes fixed valve supplier for local LNG operators.
Conclusion
Whether for corrosive chemical pipeline, high-pressure oil & gas trunk line or ultra-low temperature LNG facility, J-VALVES provides one-stop solution including parameter selection, customized manufacturing, factory inspection, export packing and after-sale technical support for global buyers of 3PC flanged trunnion ball valve.
