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Shafer Emissions Controlled Actuation Technology (ECAT)
A field proven and highly reliable ’Gas-Under-Oil’ valve operating system with no associated gas emissions.

ECAT Single Stroke Cycle Demonstration

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Zero Emissions Shafer ECAT - Emissions Controlled Actuator Technology

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Shafer Emissions Controlled Actuation Technology (ECAT)


Power Source
Pipeline gas powers the actuator and a unique electro-hydraulic power pack is used to re-inject gas back into the pipeline
Product Type
Rotary Vane Hydraulic Actuator
NEC Explosion proof for Class I, Div. I hazardous areas

This product is only intended for use in large-scale fixed installations excluded from the scope of Directive 2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS 2).
Control Type
On/off, ESD, Station blow-down, Remote 2-way electric control, Linebreak, Station by-pass etc.
Valve Type
Ball, Plug


  • Ideal for gas pipeline applications in environmentally sensitive areas