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Help CenterElectric Actuated Butterfly Valve With Position Feedback, 4-20mA Signal, DN80-DN400
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As a leading manufacturer with ISO9001 certified production processes, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in delivering high-performance flow control solutions. Our Electric Actuated Butterfly Valve with Position Feedback represents a pinnacle of precision engineering, designed for demanding industrial automation applications. This valve integrates a reliable electric actuator with precise 4-20mA signal feedback, offering remote monitoring and control capabilities that enhance operational efficiency and system reliability. Since our establishment in 2016, we have focused on providing robust and intelligent valve solutions that meet the stringent requirements of global markets, including North America, Europe, and Southeast Asia.
This valve is engineered for superior performance and long-term durability. Its intelligent design allows for seamless integration into modern Distributed Control Systems (DCS) and Supervisory Control and Data Acquisition (SCADA) systems.
- Precise Position Feedback: The integrated 4-20mA analog signal provides continuous, real-time feedback on the valve disc position (0-90°), enabling accurate process control and immediate fault detection.
- Robust Construction: Available in a range of body materials including cast iron, ductile iron, and stainless steel to suit various media and environmental conditions, from water treatment to chemical processing.
- Flexible Actuation: Equipped with a high-torque electric actuator that can be specified for simple on/off duty or precise modulating control, supporting multiple control signals.
- Excellent Sealing Performance: Features a variety of seat material options like EPDM, NBR, or PTFE, ensuring tight shut-off and compatibility with different fluids, temperatures, and pressures.
- Easy Installation & Maintenance: The compact wafer or lug design simplifies installation in pipeline systems, while the modular actuator design allows for easy field servicing or replacement if needed.
- Wide Application Range: Ideal for HVAC systems, water and wastewater treatment plants, power generation, chemical and pharmaceutical industries, and food & beverage processing.
Below is a summary of key technical specifications for our standard product range:
| Parameter | Specification |
|---|---|
| Nominal Diameter (DN) | DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400 |
| Pressure Rating (PN) | PN10, PN16, PN25 (Standard) |
| Valve Body Material | Cast Iron (GG25), Ductile Iron (GGG40), Stainless Steel (304/316) |
| Disc Material | Stainless Steel (304/316), Coated Ductile Iron |
| Seat Material | EPDM, NBR, PTFE, Viton (Available upon request) |
| Connection Type | Wafer (Standard), Lug Type (Optional) |
| Actuator Control | On/Off (2-point control) or Modulating (Proportional) |
| Feedback Signal | 4-20mA (Standard), 0-10V, Potentiometer, Switch Signal (Selectable) |
| Input Signal | 4-20mA, 0-10V, 24VDC/110VAC/220VAC Switch Signal |
| Operating Temperature | -10°C to +120°C (Depends on seat material) |
| Ambient Temperature | -20°C to +60°C |
| Protection Class | IP65, IP67 (Standard), IP68 (Optional) |
| Manual Override | Integrated Handwheel (Standard) |
The primary advantage of this valve is its ability to provide closed-loop control. The position feedback allows control systems to verify command execution, significantly improving process accuracy and safety. This is crucial in applications like chemical dosing or temperature control loops. Furthermore, the modular and field-replaceable components reduce downtime and lifecycle costs. Clients benefit from reduced manual intervention, lower labor costs, minimized risk of human error, and enhanced data collection for predictive maintenance.
Trust is paramount in B2B relationships. Shanghai Zhibang Valve backs its products with a solid track record. Our annual export value of US$1 Million to US$1.5 Million and our presence in diverse markets from North America and Western Europe to Africa and Oceania testify to the reliability and acceptance of our valves worldwide. Sourced from major ports like Shanghai and Guangzhou, our products reach clients efficiently. The ISO9001 certification underpins our commitment to consistent quality. Choosing our Electric Actuated Butterfly Valve means investing in a component that delivers precise automation, robust construction, and reliable performance, helping you optimize your processes and reduce operational costs. Contact us today to discuss how this valve can be integrated into your specific application.
Frequently Asked Questions (FAQ)
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Q: What is the main purpose of the 4-20mA position feedback signal?
A: The 4-20mA signal provides a continuous, analog representation of the valve's disc position (typically 0-90°). It allows your control system (like a PLC or DCS) to monitor the valve's actual position in real-time, enabling precise modulating control, verifying that the valve has moved to the commanded position, and facilitating alarm generation for faults like jamming. -
Q: Can this valve be used for both on/off and flow regulation (throttling) duties?
A: Yes. The valve can be ordered with either a standard on/off (2-point) electric actuator or a more advanced modulating (proportional) actuator. The modulating type, combined with the position feedback, is specifically designed for precise flow regulation applications. -
Q: Are different seat materials available, and how do I choose?
A> Absolutely. We offer EPDM for general water applications, NBR for oils and fuels, PTFE for aggressive chemicals and high temperatures, and Viton for specific solvents. Selection depends on the fluid type, temperature, and required chemical resistance. -
Q: What is the delivery time for a standard DN200 valve?
A: For standard configurations from our DN80-DN400 range, typical lead time is 15-30 working days. This can vary based on specific material choices, actuator options, and order quantity. Expedited production is available upon request. -
Q: Does the electric actuator include manual operation capability?
A: Yes. A manual handwheel override is integrated as a standard feature. This allows for manual operation in case of a power failure or during maintenance, ensuring system continuity and safety. -
Q: What voltage options are available for the electric actuator?
A: The actuators are available in common voltage specifications to suit different regional standards, including 24VDC, 110VAC, 220VAC, and 380VAC. The specific voltage should be specified at the time of ordering. -
Q: How is the valve protected for outdoor or harsh environment installation?
A> The actuator enclosure typically comes with a standard IP65 or IP67 rating, making it dust-tight and protected against water jets or temporary immersion. An IP68 rating for prolonged underwater protection is available as an optional upgrade. -
Q: Can you provide custom configurations outside the standard DN80-DN400 range?
A: As a manufacturer, we have the capability to engineer and produce valves in sizes larger than DN400 or with special requirements. Such projects are evaluated on a case-by-case basis. Please contact our technical sales team with your detailed specifications.
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