Pneumatic Piston Actuator

WYE series scotch yoke pneumatic piston actuator are designed in many different model number combinations of actuator sizes, cylinder diameters. The scotch and yoke actuator can provide a wide torque output range from 110Nm to 500000Nm, which the high torque can support big size ball valve, butterfly valve etc quarter turn valves.These pneumatic piston actuators can be used for on/off application and the special torque characteristic make them ideal for control applications.

一.Product Introduction

WYE series scotch yoke pneumatic piston actuator are designed in many different model number combinations of actuator sizes, cylinder diameters. The scotch and yoke actuator can provide a wide torque output range from 110Nm to 500000Nm, which the high torque can support big size ball valve, butterfly valve etc quarter turn valves.These pneumatic piston actuators can be used for on/off application and the special torque characteristic make them ideal for control applications.

二.Product Features

  1. Wide Torque Range & High Versatility

    It offers a broad torque output range from 110Nm to 500,000Nm, which can support large-size ball valves, butterfly valves, and other quarter-turn valves, making it suitable for valves of different diameters and pressure ratings, especially advantageous in large pipeline systems.

  2. Dual Application Capability

    It is applicable for both on/off and control applications. Its unique torque characteristic makes it ideal for precise control of valve openings to regulate flow, pressure, and other process parameters.

  3. Efficient Scotch Yoke Mechanism

    Adopting the Scotch Yoke structure, it efficiently converts the linear motion of the piston into 90° angular rotation, ensuring high transmission efficiency and stable power output, even under high-load conditions.

  4. Modular Design for Flexibility

    It comes in various model combinations of actuator sizes and cylinder diameters, allowing flexible configuration based on actual needs. It also facilitates later maintenance, spare parts replacement, and inventory management.

  5. Robust Construction & Long Durability

    Key components like the cylinder are made of high-strength materials and precision-machined to ensure structural stability. It can operate stably for a long time in harsh industrial environments such as chemical, petrochemical, and pipeline industries, with excellent impact and vibration resistance.

  6. Potential for Precision Control

    When paired with accessories like positioners, it can achieve high-precision control of valve openings, with a control accuracy of up to ±1%, meeting the precise regulation requirements of process industries for process parameters.

  7. Easy Integration & Mounting

    It complies with universal mounting standards (e.g., ISO 5211), enabling convenient integration with various quarter-turn valves, significantly reducing installation time and engineering implementation difficulty.

三.Technical data

Technical Parameter Details
Actuator Type Scotch Yoke Pneumatic Piston Actuator (WYE series)
Torque Range 110 Nm – 500,000 Nm (covers all model combinations)
Pressure Rating 0.4 – 1.0 MPa (gauge pressure, pneumatic supply)
Stroke Angle 90° (for quarter-turn valves like ball valves, butterfly valves)
Cylinder Diameter Range Multiple specifications available, matching different torque and size requirements
Materials – Cylinder & Housing: Aluminum alloy, Carbon steel, Stainless steel (304, 316) – selected by application

– Internal Components: Hardened steel, Engineering plastics (for wear resistance)

– Seals: NBR, FKM (Viton), EPDM – selected by temperature and media compatibility

Temperature Range – Ambient: -20℃ – +80℃ (standard); Custom ranges available (e.g., -40℃ – +120℃ for extreme environments)

– Media: Compatible with valve media temperature (varies by application)

Application Types – On/Off Applications: For valve opening/closing in batch processes

– Control Applications: For precise flow/pressure regulation in continuous processes

Mounting Standard ISO 5211 (compatible with standard quarter-turn valves)
Accessories (Optional) – Control: Positioners (analog, digital, HART/Fieldbus), Solenoid valves, Limit switches

– Manual Override: Side-mounted handwheel, Jackscrew (if required)

– Filter/Regulator: For pneumatic supply purification and pressure regulation

Efficiency High transmission efficiency via Scotch Yoke mechanism, ensuring reliable torque output with low air consumption
Control Precision Up to ±1% (when equipped with smart positioners)
Industry Applications Chemical, Refining, Pipeline, Water Processing, Power, etc. (for ball valves, butterfly valves, etc.)
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About Us

Founded in 2016, Shanghai Wangye Valve Manufacturing Co., Ltd. is a professional industrial fluid control manufacturer with nearly a decade of experience, integrating R&D, intelligent production, sales, and customized solutions. Leveraging Shanghai’s advanced manufacturing advantages, we’ve built a reliable brand across petrochemicals, power, metallurgy, water treatment, and new energy industries, offering gate/ball/butterfly valves and tailored solutions for harsh conditions. Backed by advanced equipment, full-process quality control, and ISO certifications, we adhere to “Integrity, Quality, Customer Focus, Innovation” and provide comprehensive services, striving for long-term cooperation and continuous technological upgrading.

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Why Choose Us

Talent and Efficient Team

WYE always insists that employees are the most valuable asset of the enterprise and the future of WYE; Adhere to prioritizing talent selection, education, and utilization in the development of enterprises; introducing talent as the highest return investment behavior. We regard talent as the primary resource for effective management, and pursue a high degree of harmony and unity between employee personal development and enterprise development.We encourage you to have a special perspective, think independently, and be good at organizing resources from all parties. Always maintain a responsible attitude towards results and a positive team spirit that is willing to share in every task..

High End Processing Equipment Creating Excellent Product Quality

Advanced automated production equipment and sophisticated assembly line production demonstrate first-class quality.Technical experts directly participate in production to ensure the concealment and reliability of the product.The increasing awareness of high-quality products and the continuous supply of industrial products have made WYE constantly changing.No matter how the world changes, the persistent spirit of excellence among WTE people remains unchanged.

Warehouse Strength

In our facility, raw materials (including core components and packaging supplies) are strictly controlled via a real-time digital inventory system—tracking batches, shelf life, and storage conditions to boost traceability and cut waste. Semi-finished products, post-preliminary quality checks, are stored per strict industry standards: labeled with progress/inspection records to avoid cross-contamination and damage. Finished products are sorted into specialized warehouses by type, market, and delivery schedule, streamlining picking and reducing dispatch delays. This standardized process effectively boosts efficiency: cutting redundant steps by 30%, shortening fulfillment cycles by 20%, and minimizing inventory/shipment errors.

Customized Solutions & After-Sales Support

Tailored to the distinct demands of industries like petrochemicals, new energy, and metallurgy, WYE provides personalized industrial fluid control solutions—covering pre-project demand assessment, customized valve design (matching specific working conditions like pressure or medium type), and on-site technical consultation to align with clients’ operational scenarios. Additionally, we offer comprehensive after-sales support: including on-site installation guidance, regular equipment maintenance inspections, and 24/7 responsive fault troubleshooting, which ensures the stable operation of clients’ systems and strengthens long-term cooperative partnerships.

Our Services

Our company is a one-stop solution for all valve-related needs, offering customization to tailor valves to unique specifications, professional installation & commissioning for seamless integration and optimal performance, maintenance & repair to keep valves in top condition and extend their lifespan, and technical support & consultation for expert advice on selection, optimization, and troubleshooting throughout every project stage.

Valve Customization Service

We design and manufacture valves tailored to your unique specifications, ensuring perfect compatibility with your systems and enhanced operational efficiency.

Valve Installation & Commissioning

Our expert team provides professional installation and commissioning services, guaranteeing seamless integration and optimal performance of your valves from day one.

Valve Maintenance & Repair

We offer regular maintenance, prompt repair, and parts replacement services to keep your valves in top condition, minimizing downtime and extending their lifespan.

Technical Support & Consultation

Get expert advice on valve selection, system optimization, and troubleshooting. Our technical team is available to guide you through every stage of your valve-related projects.

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