Manual / Mechanical Valves Series ST Pneumatic Directional Control Valves Mechanically actuated 3/2-way and 5/2-way directional control valves with ISO G metric ports. All Stainless Steel body and spool make it a rugged valve with compact dimensions, suitable for wash down applications and corrosive environments. All versions have mounting holes in the body to simplify installation. Actuating options: Plunger Roller Roller lever, one-way trip Push button Lever Ball Nozzle Spring loaded rod Roller with single-action lever Roller with articulated lever Panel installation Panel mount operators: Push button Mushroom button Mushroom button with detent and rotary release Lever switch Rotary switch with 2 notched positions Push button with detent and rotary release Rotary lock with 2 keys Download Series ST catalog (pdf 1.2MB) New! Series ST valves available on GoTo Quick Ship Delivery Program