Hayward's PMD pneumatic actuator offers an air-to-air or air-to-spring 2-piston rack & pinion design with manual override, position indicator, Namur-style mounting and cycle speed controls.
The PMD4 variation, which also offers air-to-air and air-to-spring operation, is the same as the PMD/PMS except its polypropylene housing is better suited for corrosive environments. These are also used for the larger ball valves and for butterfly valves.
The following pricing table matches the actuator series to valve size. The table afterwards indicates various options.
If you have any questions about your specific application please contact us or complete our inquiry form so that we can assist you further.