Illustrated and described are modulating, solar powered, stored energy, linebreak protection, and ESD valve automation designs.
Rotary actuators are highlighted for fail-safe operation of ball, plug, and butterfly valves or dampers. They are designed to eliminate the need for stored air, high-pressure natural gas or nitrogen power sources.
Linear actuators are presented to provide direct yoke mounted, powerful fail-safe automation for a wide range of gate valves. They are always ready for emergency service and can be regularly operated for normal automation duty.
Solar-powered actuators are shown in the field and described for remote SCADA control and fail-safe stored energy applications on remote pipeline valves where electrical power is not available or unreliable. Microprocessor-driven electro-hydraulic modulating actuator systems are declared to serve 2 to 42-in. rotary and linear control valves.