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Woodward 8915-879
Woodward 8915-879 is a 3151A Water Valve in Woodward’s turbine valve product range, designed for gas turbine water injection systems.
- Product Type: 3151A Water Valve
- Core Function: Metered water bypass for pump-stability and heat-balance in gas turbine water injection
- Medium: Water
Detailed content
- Flow Rate: 3.8–250 L/min (1–66 US gal/min)
- Supply Pressure: 2413–10 342 kPa (350–1500 psig)
- Maximum Bypass Pressure: 345 kPa (50 psig)
- Flow Accuracy: 5.0% of point or 0.5% of maximum flow
- Filtration: 10 μm nominal, 20 μm absolute
- Temperature Range: 0–66 °C (32–150 °F)
- Material Composition: Stainless steel primary construction; replaceable hardened stainless-steel sleeve; ceramic on metering and regulator components
- Structural Features: Variable-area-metering valve; single-stage throttling delta-P regulator piston; quarter-turn rotatable or replaceable cavitation sleeve
- Working Principle: Actuator positions the metering plunger to control port opening; the delta-P regulator maintains constant pressure differential across the metering ports so flow is unaffected by variations in valve inlet or discharge pressures
- Applications: Industrial gas turbine NOx reduction; water injection control; compatible with Woodward EM Digital Driver or 24 V DVP
- Installation Requirements: Follow Woodward 3151A outline drawings; ensure filtration to 10 μm nominal / 20 μm absolute
- Usage Notes: Do not operate outside rated mechanical/electrical limits; observe ESD handling rules; unauthorized modifications void warranty and invalidate product certifications
