Actuators & Fuel Valves

Alberta Governor carries a series of Woodward actuators and fuel valves for turbines. We deal exclusively in Woodward actuators and valves, the industry leader in turbine products. As a Woodward Authorized Independent Service Facility, we can provide repairs and service to your actuators and fuel valves. We provide onsite service within our facility, as well as service calls within our designated service area.

We carry the following actuators and fuel valves for gas turbines:

Woodward GS6 Gas Valve with On-Board Driver

The Woodward GS6 gas fuel metering valves are designed to meet the high performance standards required for the control of fuel to industrial gas turbines. The assembly provides reliable, cost- effective interfaces between the electronic engine control system and the gas turbine as applied in power generation, compressor, or mechanical drive applications. The valve can be used in a single valve configuration for single- manifold base turbines or in multiple valve configurations for Dry Low Emission turbines.

Features include:

  • Single moving part for reliable performance
  • All-electric actuation
  • On-board driver
  • Fast dynamic response
  • Robust self-cleaning valve
  • Digital and/or 4–20 mA interface
  • Highly accurate fuel metering
  • Discrete fault output and independent shutdown
  • Certified for North American Hazardous Locations
  • Compliant with applicable CE Directives – ATEX, Pressure Equipment, EMC, and Machinery

Woodward GS16 Gas Valve with On-Board Driver

The Woodward GS16 gas valve is suitable for use on industrial gas turbine engines with maximum power ratings between 10 and 50 MW. The assembly provides a reliable, cost-effective interface between electronic control systems and gas turbines used in electrical power generation, compressor, or mechanical drive applications. The valve assembly can be used for base turbines or in multiple valve configurations in Dry Low Emission turbines.

Features include:

  • Highly accurate fuel flow metering
  • Single moving part for reliable performance
  • All-electric actuation
  • On-board driver
  • Fast dynamic response
  • Robust self- cleaning valve
  • Gas flow shut-off in conformance with ANSI B16.104 Class IV
  • Digital and/or 4–20 mA analog signal interfaces
  • Discrete fault output and independent shutdown
  • Certified for North American Hazardous Locations
  • Compliant with applicable CE Directives—ATEX, Pressure Equipment, EMC, and Machinery

Woodward GSOV25 HT Fuel Isolation Valve

The GSOV25 HT fuel isolation valve provides shutdown on a gas turbine by rapidly halting the flow of gaseous fuel. The supply pressure is used to move a spring- loaded piston in the valve. When the valve is energized, gas pressure drives the spring-loaded piston open, admitting fuel to the turbine. When the current signal to the electrical solenoid is interrupted, the spring loaded second-stage piston changes states to vent off primary control pressure. The main spring then forces the primary piston to the seal, stopping all flow.

Features include:

  • Rated at <10 psi (69 kPa) pressure drop at flow of 25 000 lb/hr (11 340 kg/hr)
  • Fuel temperature range -4 to +350 °F (-20 to +177 °C)
  • Closes in <0.100 seconds at 900 psig (6200 kPa)
  • Better than Class VI shutoff
  • 100 to 900 psig (690 to 6200 kPa) operating pressure
  • 500 psig (3448 kPa) reverse pressure capable
  • Certified for North American Hazardous Locations
  • Compliant with applicable CE Directives — ATEX, Pressure Equipment, Machinery, Low Voltage, and EMC
  • Certified for use in explosive atmospheres within the Russian Federation
  • Designed for natural gas, propane, ethane, or methane
  • Operates from line pressure with no external connections required or with external pilot pressure

Woodward 3103 Gas Valve with TM-55P Actuator

Woodward’s 3103/TM-55 gas fuel control valve is an electro-hydraulic, stainless steel control valve for use on aeroderivative gas turbines. The valve is capable of metering gas flow between 50 and 40 000 lb/hr (23 and 18,144 kg/hr). It is designed to be corrosion resistant and self-cleaning, allowing it to operate in sour gas environments (high sulfur content gas) that can cause problems for other valves. The proven TM-55 hydraulic actuator provides for robust position control of the 3103 gas metering valve.

Features include:

  • Optional porting configurations
  • Contaminant resistance
  • Internal mechanical feedback
  • Optional electrical position transducer
  • Dry coil torque motor
  • Redundant coil options
  • Integral part of the total turbine control system
  • UL and CSA Approved

Woodward TM-55P Actuator

The TM-55P Actuator is used on diesel, natural gas, and gasoline engines, or turbines. It is particularly well suited for use in control systems requiring a rotary mechanical output that is proportional to electrical input.

Features include:

  • Proportional electro-hydraulic
  • 45° rotary output
  • Maximum work 30 to 75 Nm (22 to 55 lb-ft)
  • Corrosion resistant construction
  • UL and CSA Listed Class 1, Division 1, Groups C&D
  • CENELEC Zone 1 Group IIC ATEX
  • CE Compliant
  • Workswith Woodward analog and digital controls

Woodward TG-13E and TG-17E Actuators

Woodward’s TG-13E/TG-17E self-contained electro-hydraulic actuators are used in the replacement of TG governors with an actuator and electric control system. The TG-13E and 17E proportional electro-hydraulic actuators convert an electrical signal to a corresponding proportional output shaft position in order to position the valve that controls the flow of steam (or energy medium) to the turbine. The actuators are intended for controlling small steam turbines that drive loads such as alternators, dc generator pumps, compressors, fans or papermaking machines.

Features include:

  • Proportional electric mechanical transducer
  • Rotary output
  • 12.2 and 17.5 lb-ft (16.5 and 23.7 Nm) work capacity
  • Self-contained oil sump
  • UL Listed model available
  • Adjustable feedback

Woodward TM-25LP & TM-200LP

The TM-25LP and TM-200LP actuators are electric-hydraulic, proportional actuators for positioning steam and fuel-control valves requiring low/high force linear inputs. Factory setting determines if the actuator output shaft extends or retracts on increasing current.

Features include:

  • Proportional electric-hydraulic
  • 25 mm (1 inch) linear output
  • Maximum work ratings from 34 to 271 J (25 to 200 ft-lb)
  • Corrosion resistant construction
  • North American Division 1 / Division 2 and European Zone 1 Listings
  • CE Compliant

Woodward VariStroke-I Electro-Hydraulic Actuator

The patented dirt tolerant and self-cleaning technology of Woodward’s VariStroke actuators ensure greater overall reliability of your steam turbine. Their superb accuracy and resolution make them ideal for steam valve control and related turbine speed and load control, where turbine up-time and availability is essential.

Features include:

  • Dirt-tolerant design
  • Variable / configurable shaft stroke lengths
  • Fast slew rates/times
  • Precise position control
  • Side-load tolerant
  • Integrated driver
  • Redundant MLDT position sensors
  • Certified for Hazardous Locations

Woodward VariStroke-II Electro-Hydraulic Actuator

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 low-pressure hydraulic oil source (typically turbine lube oil) to provide its output shaft force.

Features include:

  • Dirt-tolerant design
  • Variable / configurable shaft stroke lengths
  • Fast slew rates/times
  • Precise position control
  • Side-load tolerant
  • Integrated driver
  • Redundant CANopen network communications
  • Redundant LVDT position sensors
  • Certified for Hazardous Locations

Woodward Electro-Hydraulic Power Cylinder (EHPC)

Woodward’s Electro-hydraulic Power Servo (EHPS) is a fully integrated, three-stage servo valve that drives low-pressure steam turbine control valve cylinders. The EHPS, in conjunction with a new or already installed steam valve cylinder, provides the linear actuation force to operate steam turbine control valves or valve racks. This servo is ideal for retrofits where it is desired to upgrade the turbine control and hydraulic system but replace the expensive steam valve power cylinder.

Features include:

  • Positions turbine steam valve
  • Double- or single-acting
  • Single integrated unit
  • Electronic position feedback Relay/pilot valve Power cylinder actuator
  • Variable stroke and work force
  • Operates on wide range of oil supply pressures
  • One source for control system components, mechanical and electrical
  • Models are available with listings for North American Hazardous Locations
  • Dual coil option available

Woodward SPC Servo Position Controller

The SPC is a field programmable servo-driver that controls one integrating or proportional servo-valve, and accepts single or dual feedback signals for valve position sensing.

This compact digital driver can be commanded via a DeviceNet based network, and functions as a DeviceNet slave device on this network. As an alternative or backup to DeviceNet, a (4 to 20) mA input signal can be used to command servo position.

Features include:

  • Fieldbus controlled (via DeviceNet)
  • Field configurable
  • Accepts redundant command signals
  • Accepts redundant feedback signals
  • Compatible with ac or dc feedback signals
  • Includes LVDT or RVDT excitation circuitry
  • (4 to 20) mA position readout
  • Sulfur-resistant conformal coated
  • Certified for Class I, Division 2, Groups A, B, C, D, T4 locations
  • Certified for Zone 2, IIC, T4 locations
  • CE compliant

Woodward CPC-II Current-to-Pressure Converter

Woodward’s Current to Pressure Converter (CPC-II) is an electrohydraulic pressure regulating control valve used to position single-acting steam turbine valve servos/actuators. The CPC-II’s superb accuracy and resolution make it ideal for steam turbine valve control and related turbine speed and load control.

The CPC accurately controls oil pressure to precisely position single-acting steam turbine governor-valves. Precise and stable steam valve control directly relates to improved steam turbine speed and load control.

Features include:

  • Oil contamination resistant
  • Precise fluid pressure control
  • Stable & linear valve control
  • Included valve linearization table
  • Redundant inputs/sensors for critical applications
  • Accepts signals from redundant controllers
  • Redundant (dual) CPCs (Master/Slave) functionality
  • Standard mounting and hydraulic connections
  • Self cleaning valve algorithm
  • Status & health indication
  • Control pressure readout
  • Software service tool with trending
  • Certified for North American Hazardous Locations
  • Compliant with applicable CE
  • Directives—ATEX, Machinery, PED, and EMC
  • Certified for use in explosive atmospheres within the Russian Federation