AB / AU Series

AB / AU Series

Goodwin’s Axial Isolation Valves can be operated fully open to fully closed or vice-versa in less than 2 seconds. This is compared to a ball valve which usually requires 1 second per inch of bore to do the same operation. The streamlined flow path through an Axial Isolation Valve has minimal pressure drop. The flow is directed through the valve to avoid critical sealing areas, promoting the longevity of the sealing arrangement. This valve has a bi-directional flow because of the pressure-energized seals, bubble-tight shut-off is achieved in both directions. Actuation Options Include:Manual Operation Pneumatic Hydraulic Electric Electro-hydraulic

Brand: Goodwin
Category: Axial Isolation Valves
Body Axial
Materials Carbon, Low Temp Carbon, Stainless, Duplex, Super Duplex Steels, Low-High Alloy, Nickel Alloy and Titanium Alloy
Valve Size 12" to 72"
Body Design 2" – 72" – Three Piece Body 14” and above Single Piece Body
Trim Design Single or Multistage Cage
Flow Direction Bi-Directional or Uni-Directional
Wall Thickness ASME B16.34
Temperature Range -125°C to +220°C (-320.8°F – +364°F)
Pressure Class Range ASME 150-2500 API 3k – 15k
Trim Characteristics Linear, Equal Percentage, Quick-Open
Face to Face Standard ASME B16.10
Shut off Classification ANSI FCI 70-2 Class IV, V or VI

Streamlined Axial Flow Path

The streamlined flow path through an Axial Control 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 Control 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.