| | | Three sizes of air operators (medium, heavy duty or extra heavy) are offered for remote on-off operation or automatic operation of AE medium or high pressure valves. The actuators are available in air-to-open (normally closed) and air-to-close (normally open) designs. Ordering Procedure (Consult factory to insure proper selection) To order a valve with an air operator, select the duty rating and type of the air operator from the chart below. Add the air operator identifying suffix to the catalog number of the AE valve. To order a 2-way straight, 30VM vee stem, 9/16" (14.3 mm) valve with a medium duty air-to-close air operator, specify: ex: 30VM9071-C1S for a yoke style piston air actuated valve or 30VM9071-CM for an integral style industrial diaphragm air operated valve. | | |