J-VALVES is a professional Chinese manufacturer specialized in trunnion mounted ball valve, our 2-piece WCB Class150 flanged trunnion ball valve including customized 12×10 inch reduced bore model has been widely exported to Middle East, Southeast Asia & European oil refinery projects, here are our core competitive strengths:
Advantage 1: Integral Cast WCB Body for Reduced Bore Size
Instead of common welded reducer structure, J-VALVES adopts investment casting for one-piece WCB A216 body for 12×10” reduced bore trunnion valve, smooth internal bore eliminates turbulence & weld erosion risk. Extra 12% wall thickness over API6D minimum requirement improves resistance against pipeline water hammer under Class150 working pressure.
Advantage 2: Dual Spring-loaded Seat + Hardened Trunnion for Bi-directional Zero Leakage
Top & bottom trunnion pins are heat-treated for wear resistance, ball forged from solid F304 stainless steel with dual spring preloaded floating seats, realizing bi-directional bubble tight shut-off. Optional PTFE/PEEK soft seat or Stellite hardfaced metal seat passes API6FA fire safety test to prevent leakage under fire emergency for flammable gas & fuel oil service.
Advantage3: Optimized Two-piece Bolt Layout for Easy On-site Maintenance
Uniform circumferential bolt arrangement reduces flange gap leakage caused by pipeline thermal expansion; technicians can disassemble internal ball & seat parts without full valve removal from piping, cutting maintenance cost by over 60% for remote oilfield sites.
Advantage4: Full Global Certifications for Worldwide Project Approval
All J-VALVES trunnion ball valves are certified with API6D, API6FA fire safe, ISO9001 & CE PED certification, fully compliant with ANSI/ASME standard to meet North America, EU & Middle East engineering specification requirements.
Advantage5: Flexible OEM & Customization Service
Custom reduced bore size (12×10"), RTJ ring joint flange, cryogenic LCC body, metal-to-metal seal & special actuator (electric/hydraulic) are available to match different EPC project customized requirements, long-term designated valve supplier for global EPC contractors.
