Process engineers have several choices when it comes to actuators for rising stem valves – manual, pneumatic, hydraulic and electric. Manual actuators satisfy simple on-off needs. Pneumatic valve actuators are fast and low cost. Hydraulic systems can be a solution for high force applications and remote installations. For critical process control applications, though, electric valve actuators can deliver what process engineers are striving for - increased productivity, greater efficiency and less downtime. In other words, electric actuators improve processes and save money.