CTB Modulating Motorized Butterfly Valve with 4-20mA Control
URL: /ctb-modulating-motorized-butterfly-valve
CTB Modulating Motorized Butterfly Valve
The CTB modulating motorized butterfly valve is designed for precise flow regulation in demanding applications. With 4-20mA analog modulation, it provides accurate control for municipal water networks, industrial piping, and large-bore HVAC systems. Built with a triple eccentric disc and bidirectional seal, it ensures zero leakage and long service life.
Key Selling Points
- Precise 4-20mA modulation with response time ≤0.5s and flow control error <±2% (as demonstrated in a French municipal project).
- Triple eccentric disc design (offset shaft + offset seal + offset rotation) reduces torque and wear, extending valve life.
- Wafer installation saves 50% space and 70% installation time compared to flanged butterfly valves.
- Bidirectional disc seal ensures zero leakage in both flow directions.
- Anti-corrosion epoxy powder coating protects against buried or wet environments for over 15 years.
Technical Specifications
| Parameter | Value |
|---|
| Voltage | AC220V / DC24V |
| Size Range | DN50–DN300 |
| Torque | 20–200N·m |
| Control Mode | On/Off & Modulating (4-20mA) |
| IP Rating | IP67 |
| Working Pressure | ≤1.6MPa |
Models and Options
Available in sizes from DN50 to DN300, with options for AC220V or DC24V actuators. The CTB series supports both on/off and modulating control, suitable for various automation levels. Custom voltage and control modes are available on request.
Materials and Structure
The valve body is made of cast iron or SS304, offering excellent corrosion resistance. The triple eccentric disc structure includes an offset shaft, offset seal, and offset rotation to minimize friction and maintain tight sealing. The body is coated with anti-corrosion epoxy powder for enhanced durability.
Applications
Ideal for municipal pipelines, sewage/drainage systems, industrial circulating water, large-bore HVAC, fire protection systems, pharmaceutical industry, and smart water management. The modulating version is particularly suited for flow regulation in water supply and treatment processes.
Customization
We offer customization in terms of actuator voltage, control signal, material selection (cast iron or SS304), and special coatings. Contact us for specific requirements.
Case Study
A large European municipal water group used 10,000 units of CTB valves for on/off control and flow regulation in water supply and drainage networks. The valves achieved precise control with 4-20mA modulation, response time ≤0.5s, and flow control error <±2%. Over 16 months of operation, zero leakage and zero major failures were reported. The low power consumption design saved more than 120,000 kWh annually, and maintenance costs were reduced by 40%.
FAQ
- Q: What is the minimum order quantity? A: MOQ is 1 unit.
- Q: What is the delivery time for bulk orders? A: Delivery time is not specified but we provide efficient logistics. Please inquire for specific lead times.
- Q: Does the valve support modulating control? A: Yes, it supports 4-20mA modulating control for precise flow regulation.
- Q: What certifications does the valve have? A: The CTB series complies with CE (EN 60335-1) and RoHS (IEC 62321) standards.
- Q: Can the valve be used in buried installations? A: Yes, the anti-corrosion coating is suitable for buried or wet environments.
- Q: What is the working pressure? A: The maximum working pressure is 1.6MPa.
- Q: Is remote monitoring supported? A: Yes, it can integrate with PLC, SCADA, and remote RTU systems.
Inquiry Information
For pricing and orders, please contact Mrs Wang at tf.co@tfjt.com or +86 022 85685296. We accept FOB/CIF terms and offer pre-shipment testing. Payment terms are 50/50.
Image Suggestions
- Main image: Front view of CTB valve, file: ctb-modulating-valve-front.png
- Detailed image: Side view showing wafer design, file: ctb-modulating-valve-side.png
- Alt text: "CTB modulating motorized butterfly valve with 4-20mA control"
