Product Description
Woodward LR20949 Liquid Fuel Valve
Product Overview
- The Woodward LR20949 is a Liquid Fuel Valve designed for precise control of fuel flow in industrial gas turbine and engine applications, such as power generation, marine propulsion, and mechanical drive systems. This electromechanical valve regulates liquid fuel delivery to ensure accurate combustion control, supporting stable operation and efficient performance. The LR20949 is typically used in conjunction with Woodward’s electronic governors or control systems to modulate fuel flow based on engine demand. Known for its rugged construction, it operates reliably in harsh environments, offering high precision and durability. Compared to Woodward’s genset controllers (e.g., EasyGen-3500-5, 8440-2087), excitation systems (e.g., DECS-100-B15), or protection relays (e.g., IRI1-I5E05D), the LR20949 is a specialized fuel control component, not a standalone control system. It is distinct from Woodward’s electronic governors (e.g., DYN1-10784-003-0-12), actuators (e.g., 8408-921), and other modules (e.g., 5466-1510 CPU).
Technical Specifications
- The LR20949 has the following specifications based on industry sources and Woodward documentation:
| Specification | Details |
|---|---|
| Model/Part Number | LR20949 |
| Manufacturer | Woodward |
| Description | Liquid Fuel Valve for Gas Turbine and Engine Applications |
| Series | Not specified (specialized fuel control component) |
| Function | Regulates liquid fuel flow for combustion control |
| Control Type | Electromechanical (servo-actuated) |
| Inputs | 1 control signal (4–20 mA or 0–200 mA, compatible with Woodward control systems) |
| Outputs | Mechanical fuel flow regulation (variable orifice) |
| Communication Interfaces | None (controlled via analog signal from external governor/control system) |
| Fuel Type | Liquid fuels (e.g., diesel, kerosene, jet fuel) |
| Flow Capacity | Application-specific (typically 0–1000 kg/h, depending on configuration) |
| Pressure Rating | Up to 100 bar (1450 psi, configuration-dependent) |
| Response Time | Approx. 50–100 ms (full stroke) |
| Protection Features | Overpressure protection, fail-safe design (spring return to closed position) |
| Redundancy | Non-redundant (system-level redundancy via multiple valves possible) |
| Diagnostics | Position feedback (optional, via LVDT or potentiometer); no onboard diagnostics |
| Compatibility | Compatible with Woodward governors (e.g., 505, 2301D), control systems (e.g., MicroNet), and third-party systems with 4–20 mA output; suitable for industrial gas turbines and engines |
| Power Supply | Powered via control signal (no separate power required) |
| Environmental Specifications | Operating Temperature: -40°C to +120°C (-40°F to +248°F) Storage Temperature: -40°C to +150°C (-40°F to +302°F) Relative Humidity: 5% to 95% non-condensing Vibration: MIL-STD-810 compliant Shock: MIL-STD-810 compliant |
| Enclosure | IP65 (ruggedized for industrial environments) |
| Materials | Stainless steel body, corrosion-resistant seals |
| Dimensions | Approx. 200 mm (H) x 100 mm (W) x 100 mm (D, configuration-dependent) |
| Weight | Approx. 2–5 kg (configuration-dependent) |
| Mounting | Flange-mounted (per application-specific requirements) |
| Certifications | CE, marine certifications (e.g., DNV, ABS, configuration-dependent); ATEX/IECEx Zone 1/2 (optional, configuration-dependent) |