The Woodward 3151A Water Valve with TM-40LP Actuator is designed for gas turbine NOx emission reduction through precision water injection into the combustion chamber. The assembly accurately meters water to follow the fuel-flow schedule, preventing excess injection during transients that could cause turbine damage while holding water consumption to the minimum required for effective emission control.
Key Features
Metering & Performance
- Precision water metering for NOx emission reduction
- Closely follows fuel-flow schedule via electronic control positioning
- Fast actuator response prevents excess water injection during transients
- Internal metered bypass flow for pump stability and efficient utilization
- Flow accuracy: 5% of point or 0.5% of maximum flow (whichever is greater)
- Capacity up to 250 L/min (66 gal/min) of water
Specifications
- Supply pressure range: 2,413–10,342 kPa (350–1,500 psi)
- Flow capacity independent of supply pressure
- Standard seal material rated to 66 °C (150 °F) supply water temperature
- TM-40LP actuator for precise valve positioning
- Designed for integration with Woodward electronic turbine controls
Applications
- Gas turbine NOx emission reduction systems
- Water injection into combustion chambers
- Industrial and utility gas turbines
- Environmental compliance applications
Drake Controls Services
Drake Controls is a Woodward Authorized Distributor. We stock 3151A valve assemblies and provide repair, overhaul, and field support. For repair or overhaul, submit a repair request or email service@drakecontrols.com.