The Woodward F-Series ITB (Integrated Throttle Body) is designed to throttle air or air/fuel mixtures for gaseous engines in industrial and on-highway service. It directly replaces traditional throttle valves with no linkage between valve and actuator, eliminating setup, non-linearity, and wear problems associated with mechanical linkages. Available in 48, 60, and 68 mm bore sizes with a built-in return spring compliant with US DOT 571.124.
Key Features
Design
- Integrated butterfly valve with F-Series electric actuator
- Direct replacement for traditional throttle valves — no linkage required
- Available in 48, 60, and 68 mm bore sizes
- Return spring compliant with US DOT 571.124
- 0–70 degree output shaft travel
- Internal shaft position sensor
- No hydraulics, pneumatics, or gear train required
Control & Communications
- FST — PWM position demand input
- FSTP — PWM, J1939 CAN, 4–20 mA, or 0–5 Vdc position demand
- Optional non-linear position demand curve
- SAE J1939 CANbus protocol
- 0–5 Vdc configurable position feedback (TPS)
- FSTP: relay driver fault output, Run Enable/Key Switch discrete input
- Operating range: 10–32 Vdc, –40 to +105 °C
Applications
- Gaseous engine air and air/fuel throttle control
- Industrial reciprocating engines
- On-highway gaseous fuel engines
- Natural gas, landfill gas, digester gas, and biogas applications
- Replacement for mechanical linkage throttle systems
Drake Controls Services
Drake Controls is a Woodward Authorized Distributor. We supply F-Series ITB assemblies and provide application support and repair.