Voith Way Valves
Voith Selcon Self-Contained Linear Actuator:
A SelCon self-contained actuator is a linear, electrohydraulic drive without external oil supply.It is mounted to the control valve and actuates it directly. The control variable is the strokes of the piston rod. The rod position feedback is integrated into the drive. The self-contained hydraulic system is also integrated into the drive.
Woodward VariStroke-I
The VariStroke-I is a linear electro-hydraulic actuator that is designed to provide the linear actuation force to operate steam turbine control valves or valve racks. This integrated actuator is intended for use on mechanical-drive or generator-drive steam turbines, and uses a lowpressure hydraulic oil source (typically turbine lube oil) to provide its output shaft force.
Woodward VariStroke-II
The VariStroke-II is a linear electro-hydraulic actuator that is designed to provide the linear actuation force to operate steam turbine control valves or valve racks. This integrated actuator is intended for use on mechanical-drive or generator-drive steam turbines, and uses a lowpressure hydraulic oil source (typically turbine lube oil) to provide its output shaft force.
Woodward TM-25LP and TM-200LP:
These are electrohydraulic, proportional actuators for positioning steam and fuel-control valves requiring either 111 or 890 N (25 or 200 lb) of linear force.
Woodward Hydraulic Amplifier:
The electrically controlled Hydraulic Amplifier is a pilot-operated, linear servo actuator with up to 76 mm (3 inches) of stroke and up to 20 kN (4500 lb) of force. It is capable of operating the control mechanisms for steam turbines or large engines which require relatively large forces and work capacity.
Woodward PGPL Actuator/Driver:
The PGPL Actuator/Driver is a drop-in replacement for PG-PL mechanical governors. It has a proportional driver interface that can be used with electronic controls providing a 0 to 200 mA position signal. It can be used with all Woodward controls.
Woodward TG-13E and TG-17E:
The TG-13E and TG-17E self-contained electrohydraulic actuators are drop-in replacements for TG mechanical governors, for use on steam turbines where isochronous control, load sharing, or other functions are required. They can be used with all Woodward electronic governor controls and accessories.
Woodward UG and UG-40 Actuators:
The UG and UG-40 Actuators are drop-in replacements for UG mechanical governors. They offer the advantages of electronic control and load sharing systems while using the convenient, existing UG-type drives and linkages. They provide the muscle (up to 54 J / 40 ft-lb) for Woodward analog and digital controls. For use with diesel, gasoline, or natural gas engines, as well as steam and industrial gas turbines. The self-contained oil sump does not require a separate oil supply.
