Woodward HRT R-DDV 27E50F-4A02-999 Servo Valve

Woodward HRT R-DDV 27E50F-4A02-999 The servo valve is a high-performance, two-stage electrohydraulic device engineered for precise flow regulation in rigorous industrial applications. It incorporates a rotary direct drive mechanism with embedded electronics for dependable performance in adverse conditions.

The Woodward HRT R-DDV 27E50F-4A02-999 is a tough and reliable servovalve that uses a limited-angle rotary torque motor to directly drive the spool via an eccentric on the motor shaft. This changes rotary motion to linear spool movement for precise fluid modulation. Integrated electronics compare the position of the spool (measured by an internal LVDT) to the input command. This creates a corrective current signal that ensures the best linearity and performance, no matter what the supply pressure is. It has low internal leakage, can handle contamination (no nozzles, jets, or filters), and is rated for 5000 psi, 40g of vibration, and 60g of shock. It works best in hydraulic or pneumatic systems that need to respond quickly and last a long time.

Specifications

Benefits:

1. Rapid valve actuation unaffected by pressure owing to the electric drive system.
2. Minimal internal leakage and absence of a hydraulic first stage for enhanced efficiency.
3. Outstanding contamination resistance (lacking small clearances, filters, or nozzles that may become obstructed).
4. Resistant to shock (60g), vibration (40g), and pressure surges.
5. Compact dimensions, stainless steel construction, and minimal component count for enhanced reliability and seamless integration.
6. Extensive fluid compatibility (hydraulic oil, air, fuel) and operational pressures ranging from vacuum to 5000 psi.

Applications in Industry:

1) Fuel metering and guide vane actuation in industrial turbines (power generation, oil and gas).

2) Illustrate mechanisms, subsurface instruments, and deceleration systems in oil and gas exploration.

3) Log and saw positioning, paper tension regulation in wood and paper processing.

4) Parison regulation in blow molding and sheet gap regulation in plastics processing.

5) Shot control in die casting, as well as press, bending, and hydro-forming in metal processing.

6) Control of displacement, force, and pressure in testing and simulation within aerospace and automotive sectors.