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API 6A Expanding Gate Valves

API 6A Expanding Gate Valves

    The YFL API 6A expanding gate valve is widely used in thermal recovery wellhead with working temperature higher than 300

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  • Features
  • Specification

  • The YFL API 6A expanding gate valve has metal seal between disc & seat and bonnet & body;
  • Secondary seal of seat can prevent impurity from going into sealing surface.
  • Plastic/chevron packing stays clean and free from contaminants to reduce maintenance costs;
  • Tight mechanical seal is assured with parallel expanding gate design;
  • Parallel expanding gate design provides upstream and downstream sealing simultaneously which is not affected by pressure fluctuation and vibration;
  • A double row roller thrust bearing on the stem makes operation easy, even under full pressure;
  • When open and close the YFL API 6A expanding gate valve, there is space between gate and seat, this reduce torque.

  • Pressure ratings: 2000psi 3000psi 5000psi
  • Sizes: 2-1/16"; 2-9/16"; 3-1/8"; 4-1/16" 5-1/8" 7-1/16" 9"
  • Working temperature: LU-XX YY
  • Material classes: AA to EE
  • Production Specification Level: PSL 1 to 4
  • Performance Requirement (PR): PR 1-2