Hayward Flow Control’s GF-PP (Glass Filled Polypropylene) PMD4/PMS4 Series Pneumatic Actuator line features a GF-PP housing that provides the actuator superior corrosion resistance and performance in environments and atmospheres where most metal actuators cannot survive. With the GF-PP material, the PMD4/PMS4 actuators are also very robust, lightweight and compact, allowing for ease of installation. The actuators are available in several sizes for use with Hayward ball valves up through 6 inches, and butterfly valves through 4 inches. Available in both double acting and spring-return designs, the PMD4 has a torque range at 80 PSI supply, from 125 in-lbs to 500 in-lbs, whereas the PMS4 features a range of 44 in-lbs to 230 in-lbs. All sizes have NAMUR VDI/VDE 3845 mounting for solenoids and ISO5211 mounting base. Typical applications or installations include, but are not limited to, waste and water treatment, chemical transfer and processing, food and beverage, pharmaceutical, pulp and paper, mining, marine, and other saltwater corrosive environments.