Pneumatic Actuators - Hayward Flow Control Systems


Hayward Flow Control is proud to announce the launch of our GF-PP (Glass Filled Polypropylene) PMD4/PMS4 Series Pneumatic Actuator line.  The PMD4/PMS4 features a GF-PP housing that provides the actuator superior corrosion resistance and performance in environments and atmospheres where most metal actuators cannot. With the GF-PP material, the PMD4/PMS4 actuators are also very robust, lightweight and compact, allowing for ease of installation.   

The PMD4/PMS4 Series are available in several sizes for use with Hayward ball valves up through 6", and butterfly valves through 4".  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. 

Other Key Features & Benefits Include:

  • GF-PP Housing · Anodized Aluminum Two Piston Rack & Pinion
  • 303 Series Stainless Steel Shaft
  • External Position Indicator
  • Alternative Operating Media for 40 psi to 120 psi Service
  • Permanent Lubrication
  • Buna-N Seals
  • 304 Series Stainless Steel Fasteners


  • GF-PP housing
  • ease of installation
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