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The 0508.919T0102.AW019 servo valve is a high-performance and highly sensitive flow control servo valve suitable for pressure or force control systems, speed and electro-hydraulic position control. It plays a crucial role in the control system of steam turbines in power plants, achieving precise control of components such as high-pressure control valves and main steam valves.
The 0508.919T0102.AW019 servo valve adopts a high-performance two-stage design, which can cover the pressure drop range of each valve with a valve core pressure of 35 bar (500 psi), and the flow range is between 95 and 225 l/min (25-60 gpm). It has the characteristics of high sensitivity and fast response, which can convert small electrical signals (such as 10 milliamperes) into large hydraulic power, thereby driving various types of loads.
Structure:
The servo valve consists of a polarized electric torque motor and a two-stage hydraulic power amplifier, with the motor's armature extending to the air gap of the magnetic flux circuit and supported by flexible pipes. Hoses are used as electromagnetic and hydraulic seals for valves. The design and performance of the 0508.919T0102.AW019 servo valve play an important role in the control system of power plant steam turbines, ensuring stable operation and precise control of the system.
| Technical Specification of Servo Valve for Reference | |
| Valve Type | Electro hydraulic servo valve |
| Connection | Aviation plug |
| Material | Stainless steel |
| Maximum Rated Flow | 76l/min |
| Maximum Total Null Leakage | 2l/min |
| Maximum Pilot Flow | 0.35l/min |
| Maximum Supply Pressure | 210bar |
| Minimum Supply Pressure | 14bar |
| Proof Pressure | 150% At Supply Port |
| Burst Pressure Return Port Open | 250% |
| Maximum Operating Temperature | 135°C |
| Hysteresis Around Null | ≤3% |
| Symmetry Error | <10% |
| Linearity Error | <10% |
| Threshold | ≤0.5% |
| Condition | Brand-New |
| After-service | Cleaning and testing |
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