AB / AU Series.

Features & Benefits

• • Streamlined Axial Flow Path
    • The streamlined flow path through an Axial Isolation Valve has minimal pressure drop and the flow is directed through the valve to avoid critical sealing areas promoting longevity of the sealing arrangement.
  • Fast Opening / Closing
    • Axial Isolation Valves can be operated fully open to fully closed or vice-versa in less than 2 seconds.
  • Pressure Balanced Design
    • Pressure balancing is equally effective in both forward and reverse pressure conditions and can be opened against full differential pressure.
  • Tight Shut-off
    • With pressure energised seals encapsulating the piston body and pressure energised seating seals in the piston head, tight shut-off to FCI 70-2 Class VI, i.e. bubble tight, can be achieved.
  • Bi-Directional Flow and Sealing
    • Axial Isolation Valves can be flowed in either direction and because of the pressure energised seals, bubble tight shut-off is achieved in both directions.
  • Low Fugitive Emissions
    • Through FET testing witnessed by Lloyds Axial Isolation Valves have been certified to Rate A Class (HS) of ISO 15848-2 which is the tightest rate achievable.
  • Rack-Pinion-Rack Gear Train
    • Goodwin Axial Isolation Valves utilise Goodwin’s patented Rack-Pinion-Rack gear train mechanism to transpose the linear motion of the actuator through 90° into axial motion of the piston which provides :
      • High durability, rapid and precise movement.
      • Closure in less than 2 seconds.
      • High rangeability.
      • Zero risk of gear teeth seizure with minimal or no lubrication.
      • Low Friction and high efficiency compared to sliding gear mechanisms.
      • Low backlash maintained over the lifetime of the product.