The Beaver Quarter-Turn Pneumatic Actuator has a rack and pinion mechanism which transforms linear pressure applied on the rack into a rotational turn of the pinion.
The T01 model is a double-acting actuator which operates in both directions, having two ports for air and two pistons. It provides constant torque output and has a fail-last safety function.
The T02 model is a spring-return actuator with one port through which pneumatic force is supplied and a spring mechanism that provides the opposing force. It’s used for fail-open or fail-closed functions.
This compact actuator provides a wide range of rotational outputs for quarter-turn valves. It’s suited for use with dry or lubricated air, with maximum particle size not exceeding 30 microns.
T02 (Spring return)
3–8 bar (Spring return)
ISO 5211 interface sizes
VDI/VDE-3845, NAMUR standard (Interface for solenoid valve, shaft top end, and top drilling for assembling accessories)
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O-ring material and temperature range
HNBR (-40°C to +80°C)
Viton (-15°C to +150°C)