The rotary actuators are designed to operate rotating valves ball valve, v-notch ball valve, plug valve & butterfly valve for control as well as on-off service. Small size, up to ESD-160, ESA-160 are Scotch-Yoke mechanism which produces a torque curve that most closely match as the torque requirements of rotating valves. It produces great torque at the beginning and the end position of ball valves and butterfly valves. 

Features

• Supply : dry or lubricated filtered compressed air; max. pressure 10 bar
• Inside surface finish to minimize friction and to maximize the life of the actuator.
• Double lower drilling, for fastening of the valve and centering, according to ISO5211 / DIN3337 standards.
• Lower female shaft key, according to ISO5211 / DIN3337
• standard, for assembly on valves with square key on line and 45.shaft.
• Solenoid connections according to NAMUR standards.
• Top drilling for fastening of the accessories and upper shaft end according to VDI/VDE 3845.
• Ambient temperatures : -20 to 80

Part Name and Materials

• BODY : Aluminum Alloy
• END CAP : Die-cast in aluminum alloy, painted with epoxy polyester powder.
• PISTON : Die-cast in aluminum alloy
• SHAFT : Nickel plated steel
• SCOTCH YOKE : Heat treatment steel
• PISTON O-RING : NBR(Nitrile Butadien Rubber)
• SEAL : NBR(Nitrile Butadien Rubber)

Dimension