You Are Here: Home

Products

Ball Valves

Side Entry Forged Steel Trunnion Mounted Ball Valve

Side Entry Forged Steel Trunnion Mounted Ball Valve

    The YFL side entry forged steel trunnion mounted ball valve has a trunnion mounted ball supported by two floating seats.

    The pressure of media will push the two floating seats seal ring at both ends to attach the ball’s surface tightly to ensure bidirectional reliable sealing.

    The YFL high pressure forged trunnion mounted ball valve has forged steel body which is suitable for higher pressure than casting body and can avoid shrinkage cavities, pin holes, cracks, sand holes and other defects may occurring in casting body.

Inquiry Now
  • Features
  • Specification

  • The YFL split body forged steel trunnion mounted ball valve can be divided into two pieces split body and three pieces split body;
  • The two pieces split body and three pieces split body is connected by bolts and nuts;
  • The YFL full bore forged steel trunnion mounted ball valve can be soft seal structure and metal to metal seal structure;
  • Designed according to API or DIN standards;
  • The trunnion ball is supported by upper and lower bearing to reduce the friction between ball and seat so that the operate torque is small for easy operation;
  • Spring loaded seat is self-tightening to ensure reliable tight seal;
  • Cavity pressure self relief when spring loaded single piston effect seat structure;
  • Double block and bleed for residue discharge and pressure relief;
  • Full bore and reduced bore structure;
  • Optional extended stem or extended bonnet;
  • Optional bare stem with ISO 5211 top flange;
  • Fire safe, anti-static and anti-blowout stem design.

API three pieces body forged trunnion mounted ball valvesDIN three pieces forged steel trunnion mounted ball valvesthree pieces trunnion mounted metal seated ball valves

Product range:

  • Size: 2"56" (DN501400)
  • Pressure rating: Class 1502500 (PN16PN420)
  • End connection: RF RTJ BW
  • Body materials: Carbon steel A105 Low temperature steel LF2 LF3 Stainless steel F304 F304L F316 F316L Duplex stainless steel F51 F53 F55 904L etc.
  • Ball materials: A105+ENP F304 F316 F304L F316L F51 F53 F55 904L etc.;
  • Seat materials: PTFE RPTFE NYLON DEVLON PEEK PPL FKM or metal to metal seal etc.
  • Operation: Bare stem wrench gear electric pneumatic electro-hydraulic gas over oil actuator

Technical standards:

  • Design: API6D ASME B16.34 DIN 3357-1EN12516-1
  • Face to Face: ASME B16.10 DIN 3202F1/F4/F5/F17/F18
  • BW ends: ASME B16.25 ASME B31.8 EN12627
  • Flanged ends: ASME B16.5 ASME B16.47 EN1092
  • Wall thickness: ASME B16.34
  • Fireproof test: API 607 API 6FA
  • Test and inspection: API 598 API 6D DIN3230/3 EN12266
  • Pressure and temperature rating: ASME B16.34