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GE Oil & Gas Launches CHA Hydraulic Actuator Series at ONS 2012

29 August 2012

Expanding its portfolio of hydraulic actuators for the surface drilling sector, GE Oil & Gas is launching the CHA Hydraulic Actuator Series at the Offshore Northern Seas (ONS) 2012 Conference and Exhibition being held August 28-31 in Stavanger.

Since its acquisition of the John Wood Group PLC Well Support division in 2011, GE has been supplying customers with the RA Series of actuators product line, a reliable, cost-effective solution capable of managing supply pressures up to 3,500 psi. GE’s new CHA Series exceeds the RA Series by accepting supply pressures up to a maximum of 6,000 psi.

"With our new CHA Series, GE now provides a more robust line of actuators,” said Ian Milne, president of the GE Oil & Gas Pressure Control business. "This introduction increases our market competitiveness, as we continue to provide a full array of products with added-value services. We believe the CHA Series offers key features that will appeal to operators who are concerned with increased safety.

Improved safety features offered by the CHA Series include:

  • Quick-disconnect design enables removal of the actuator from the bonnet within the valve operating stroke, without depressurizing the valve and releasing hydrocarbons.
  • Powerful dual-coil spring package is capable of shearing standard 7/32” braided cable, allowing valve closure.
  • A captured spring design prevents release of the preloaded spring during repair or actuator removal.
  • Top access rising stem provides both a visual confirmation of the valve’s position and an interface for the use of safety-related accessories.
The CHA Series offers two large-diameter (1/2”) LP actuator ports: one for easy alignment to supply lines, minimizing debris buildup and one with an optional safety head designed to protect the actuator from over-pressurization and costly repairs. Operating at a maximum supply pressure of 6,000 psi allows use of a smaller actuator and greater control system flexibility. Fewer housing penetrations prevent the ingress of dust or water for easy maintenance.