Vertical quarter turn Pentair Pneumatic Actuators F257 (formerly sold under the brand Keystone) are used to drive butterfly, ball and shutter type valves. The pneumatic actuators are commonly used in all segments of hygienic applications.
Pentair Pneumatic Actuators use an unique helix to convert liner motion of the pistion into 1/4 turn rotary action. On some sizes the helix is characterized to optimize the generated output torque.
The Pentair Pneumatic Actuators can be supplied in two configurations, Spring return (SR), or Double acting (DA) and the SR models can be configured in the valve build up to provide a mechanical fail to close or fail to open condition.
The pneumatic actuators are made from corrosive resistant materials and clean lines important for applications in the food, dairy, brewing, pharmaceutical, beverage and chemical industries. The Pentair Pneumatic Actuator Vertical SS in combination with the Easymind Electronic Control Top creates a simple and cost effective automation package for all 1/4 turn valve options.
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