With a reputation built on reliable industrial process butterfly valves, Keystone portfolio also includes ball, knife gate, and slurry valves, as well as actuators and controls.
Keystone pneumatic actuators feature a compact rack and pinion design, helping to deliver maximum output torques in a small compact package. They also offer full bearing support on every moving part for long life. Keystone's spring return actuators incorporate man-safe designs that do not require special tools to dissemble and a hard, anodized epoxy-coated body offers higher levels of corrosion resistance. Keystone pneumatic actuators also be direct-mounted to Keystone butterfly valves.
The Keystone EPI-2 series of electric actuators offers the most innovative all-in-one actuator solution for the automation of quarter-turn valves and dampers. With a large number of standard features included in a small, compact design, the EPI-2 series simplifies valve, actuator, and control system integration. These actuators can also be direct-mounted to most Emerson-manufactured valves, eliminating the need for expensive mounting brackets. The EPI-2 can be tailored to fit customer requirements with the addition of options such as servo controls, feedback modules, network cards and local pushbutton station. This flexibility gives customers the ability to meet many of their quarter-turn electric actuator needs with a single actuator line.