Air Actuated Butterfly Valves, Keystone Valves

We stock a variety of Keystone Air Actuated Butterfly Valves using F89U Series Air Actuators in both Double Acting (Air to Open and Close) and Spring Return (Air to Open and Spring to Close, commonly referred to as “Fail Close”). These Actuators are mounted atop Keystone Series 221 Wafer Body and Series 222 Lug Body Butterfly Valves with the proper sleeve adaptor for a compact “direct” mount with no brackets.