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Vickers SM4-20 Servo Valve | SM4-20(15)57-80/40-10-S182 | BFP Actuator Control
| Model Number | SM4-20(15)57-80/40-10-S182 |
|---|
Product Description
Vickers Type SM4-20 Series Servo Valve for BFP Actuator Control
Product Overview: The Vickers SM4-20(15)57-80/40-10-S182 is a high-dynamic, two-stage electro-hydraulic servo valve engineered for the most demanding industrial applications. As a critical control component for BFP (Boiler Feed Pump) Actuators, this model translates micro-electrical commands into precise hydraulic force, enabling microsecond-level regulation of pump speed and flow. Featuring a precision-ground spool and sleeve assembly with a two-stage nozzle-flapper design, the SM4-20 ensures exceptional linearity, repeatability, and long-term stability in power plant and heavy industrial environments.
Key Technical Advantages:
BFP Actuator Optimization: Specifically calibrated for the dynamic requirements of boiler feed pump actuators (S182 spec), ensuring system smoothness and zero overshoot during speed regulation.
Superior Dynamic Response: The two-stage pilot architecture provides an ultra-wide bandwidth, allowing real-time tracking of control commands to maintain constant system pressure.
High Resolution & Low Hysteresis: The mechanical feedback wire design ensures precise spool positioning with minimal hysteresis, significantly enhancing closed-loop system stability.
Industrial Durability: Robust body construction withstands extreme mechanical vibration and high-temperature conditions, compatible with standard industrial mineral oils.
Detailed Specifications & Parameters:
Core Model: SM4-20(15)57-80/40-10-S182
Primary Application: BFP Actuator Control, Steam Turbine Regulation.
Core Performance Specs:
Nominal Size: Size 20 (Two-stage servo architecture).
Rated Pressure: Operating pressure up to 210 Bar (3,000 PSI), peaks up to 315 Bar.
Rated Flow Capacity: Ranging from 57 L/min to 80 L/min at specified pressure drops.
Control Signal: Low-current servo command (typically ±8mA, ±10mA, or ±40mA).
Design Sequence: 10 Series.
Company Profile
We adhere to international quality management standards and provide a 1-year warranty including maintenance and replacement. We have established long-term strategic cooperation with many well-known brands and continuously launch new products to meet market development. Flexible payment terms are supported, including USD settlement, Alipay, Western Union and T/T.
Relying on our standardized production base and professional foreign trade team, we provide competitive factory direct prices, efficient logistics channels and punctual delivery. FJZY Hydraulic is devoted to being your trustworthy long-term partner in hydraulic and agricultural machinery fields.
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Strict Quality Assurance
Quality first is our principle. We provide a one-year warranty service, ensuring you receive top-tier quality products with confidence.
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Through efficient production and close cooperation, we offer highly competitive prices, guaranteeing a cost-effective experience for you.
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