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Vickers SM4 Servo Valve | SM4-20(15)57-80/40-10-S182 | SM4-40(40)151-80/40
| Model Number | SM4, SM4-20(15)57-80/40-10-S182, SM4-40(40)151-80/40-10-H919H |
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Product Description
Vickers SM4 Series High-Performance Two-Stage Electro-Hydraulic Servo Valves
Product Overview: The Vickers SM4 Series servo valves are specifically engineered for applications demanding ultimate dynamic response and high-precision flow control. Utilizing a proven two-stage design—a high-sensitivity nozzle-flapper pilot stage and a precision-ground spool/sleeve second stage—this series ensures massive hydraulic force is controlled by minute electrical signals. From the SM4-20(15) for complex motion control to the SM4-40(40) for high-flow requirements, this series delivers near-perfect linear output and minimal hysteresis.
This page prominently features specialized custom models: SM4-20(15)57-80/40-10-S182 and SM4-40(40)151-80/40-10-H919H.
Key Technical Advantages:
High Frequency Dynamic Response: Nozzle-flapper technology provides exceptional bandwidth, enabling real-time tracking of complex frequency command signals.
Exceptional Null Stability: Precision-engineered feedback wire mechanisms minimize null shift during prolonged continuous operation.
Two-Stage Power Amplification: Controls powerful hydraulic forces via micro-level electrical inputs, achieving micron-level adjustment of actuator speed and position.
Custom Specification Support: Specialized suffixes like S182 and H919H denote custom optimizations for flow gain, seal materials, or electrical connectivity to suit specific industrial environments.
Detailed Specifications & Parameters:
Core Series: Vickers SM4 High Performance Series.
Featured Model Matrix:
SM4-20(15)57-80/40-10-S182 (Rated Flow: 15gpm / 57Lpm)
SM4-40(40)151-80/40-10-H919H (Rated Flow: 40gpm / 151Lpm)
Core Performance Specs:
Frame Sizes: SM4-20 and SM4-40.
Rated Flow Range: From 57 L/min (15 USgpm) to 151 L/min (40 USgpm).
Max Operating Pressure: Rated up to 210 Bar (3,000 PSI) or custom per spec.
Control Command: Differential servo current input.
Feedback Type: Mechanical Feedback.
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.
Our Advantages
Fast & Reliable Delivery
Extensive Partnerships
We collaborate with numerous factories, offering a wide range of product selections and providing you with instant quote responses
Strict Quality Assurance
Quality first is our principle. We provide a one-year warranty service, ensuring you receive top-tier quality products with confidence.
Competitive Pricing
Through efficient production and close cooperation, we offer highly competitive prices, guaranteeing a cost-effective experience for you.
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