The Shafer SH-Series is a helical spline gas-over-oil actuator.
This series has been discontinued.
Shafer SH-Series Gas Over Oil Helical Spline Valve Actuator (Discontinued Product)
Gas Over Oil
Gas Over Oil Actuator
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).