• API 6D trunnion mounted ball valve.
• Full welding design reinforce the connection of
  body and caps for high pressure application.
• ISO 5211 mounted pad design for actuator
  application.
• Double block and bleed design, single valve with
  two seating surfaces that, in the closed position, 
  provides a seal against pressure from both ends
  of the valve with a means of bleeding the cavity
  between the seating surfaces. And single piston
  effect seats design, as known as self-relieving
  seats, permits the automatic release of nay over
  pressure in the body cavity when the valve is in
  the fully open or fully closed position.
• Emergency sealant injection which provide an
  effective temporary solution for minor leakage
  problems. Sealant can be injected directly to the
  stem sealing area and seat  sealing area to affect
  a temporary emergency seal in the event of the
  stem seal or seat seal is dmaaged. Valves would be 
  complete with emergency sealant injection over 6".
• API 607 fire safe design. In case of fire during the use
  of valve, the seat ring, stem O-ring and middle flange 
  O-ring made of PTFE, rubber or other non-metal 
  materials will be decomposed or damaged under high 
  temperature. Under pressure of the media, the ball 
  itself will push the seat retainer rapidly towards the 
  ball and make the metal to metal sealing structure, 
  which can effectively control valve leakage.
• Other flange drilling standards (EN1092, AS2129,
  BS10, etc.) are available upon request.
• Variety of material is available upon request, please
  consult Terofox for specific application.
• Drain / Vent / Emergency injection / Supporting legs / 
  Lifting lug are available upon request.
• NACE MR0175 / MR0103 are available upon request.