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Help CenterKOBOLD Messring Ball Valve KUA Industrial Pipeline Flow Control Ball Valve
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Product Description
This electric actuator is specifically designed to operate 2-way and 3-way ball valves as well as butterfly shut-off valves. It features a compact design, with the gear section completely isolated from the electrical components and cable connections—a particularly notable feature. The valve stem is connected to the actuator end of the gear reducer, which is driven by a series-connected motor.
Two standard limit switches and a position indicator provide electrical and visual feedback. For example, in the event of a power failure, you can manually reset the valve using the emergency manual override. The actuator, adapter, and valve are fully matched and supplied as a complete unit to ensure trouble-free operation.
Performance Features
2-way/3-way electric ball valves with optical indicator, manual override, and two additional limit switches
Suitable for corrosive media environments
Flange connection, DN15 … DN50
The KOBOLD KUA ball valve is engineered with precision to provide bubble-tight shut-off and excellent flow characteristics. Below are the key features and specifications:
Robust Construction: Available in stainless steel, carbon steel, or alloy steel, offering high resistance to corrosion, erosion, and high temperatures.
Versatile Connection Options: Choose from flanged, threaded, or welded ends to suit your piping system requirements.
Pressure Ratings: Customizable from PN16 to PN40 or Class150 to Class300, ensuring compatibility with a wide range of operating pressures.
Size Range: DN15 to DN200 (1/2" to 8") to accommodate various pipeline diameters.
High-Quality Sealing: PTFE or reinforced PTFE (RTFE) seats provide low friction, excellent chemical resistance, and long-lasting sealing performance.
Bidirectional Flow: Designed for full bidirectional flow, minimizing pressure drop and allowing easy installation.
Anti-Blowout Stem: Safety feature ensures the stem cannot be ejected under pressure, enhancing operator safety.
Fire-Safe Design (Optional): Available with fire-safe construction compliant with API 607 standards upon request.
Multiple Actuation Options: Manual handle, gearbox, pneumatic actuator, or electric actuator can be customized for remote or automated control.
Low Torque Operation: Optimized ball and seat design reduces operation torque, extending actuator life and reducing energy consumption.
| Parameter | Specification |
| Body Material | Stainless Steel (SS304, SS316, SS316L), Carbon Steel (WCB, WCC), Alloy Steel |
| Ball Material | Same as body or chrome-plated, stainless steel |
| Seat Material | PTFE, RTFE, PPL, Nylon (optional) |
| Stem Material | Stainless steel, alloy steel |
| Working Pressure | PN16, PN25, PN40, Class150, Class300 (customizable) |
| Working Temperature | -20°C to +180°C (standard); higher temperature range available upon request |
| Connection Type | Flanged (RF, FF, RTJ), Threaded (NPT, BSP), Welded (BW, SW) |
| Applicable Media | Water, oil, gas, steam, corrosive fluids, etc. |
| Standards | API 6D, ISO 17292, ASME B16.34, EN 12516-1 (compliant) |
One of the standout advantages of the KOBOLD KUA ball valve is its superior flow control capability. The full port design offers minimal pressure drop, allowing maximum flow efficiency. This is critical in industrial pipelines where energy savings and process optimization are priorities. Additionally, the valve's rugged construction reduces maintenance frequency and downtime, directly contributing to lower total cost of ownership.
For customers who require automation, the KUA series can be easily integrated with pneumatic or electric actuators. Rossonix provides expert consultation to select the right actuator torque and control accessories (such as positioners, limit switches, and solenoid valves) to ensure seamless operation in your process control system. Our team also offers tailored solutions for special media, extreme temperatures, and high-cycle applications.
At Rossonix Co., Limited, we have built a strong reputation since 2011 through our dedication to quality and global reach. With an annual export value of US$5 million to US$10 million and a presence in markets across North America, South America, Europe, Oceania, the Middle East, and Asia, we have extensive experience in international logistics and customs compliance. Our overseas office ensures prompt communication and after-sales support for clients worldwide. All shipments are carefully packed and dispatched from our ports in Shenzhen, Hong Kong, or Europe, ensuring timely delivery.
We are ISO9001 and ISO9000 certified, which guarantees that our products undergo rigorous quality control procedures. Each KOBOLD KUA ball valve is factory-tested for pressure, seat leakage, and operation before dispatch. This commitment to quality has earned us the trust of many repeat customers in demanding industries such as petrochemical, pharmaceutical, and water treatment. We also offer a comprehensive warranty and technical support to give you complete peace of mind.
Choose the KOBOLD Messring Ball Valve KUA for your next project and experience the difference in reliability and performance. Contact us today for a quote or more information – our team is ready to assist you with customized solutions.
Frequently Asked Questions (FAQ)
Q: What is the typical lead time for the KOBOLD KUA ball valve?
A: Lead time depends on quantity and specifications. Standard sizes (DN15-DN100) are usually available within 15-25 working days after order confirmation. Customized orders may take 30-45 days. Please contact us for exact delivery schedules.Q: Can this valve be used for high-temperature applications above 200°C?
A: Yes, with optional high-temperature seat materials such as PPL or metal-seated design, the valve can handle temperatures up to 350°C (or higher based on construction). Please provide your specific temperature requirements for a tailored solution.Q: Is the valve suitable for corrosive media like acids or alkalis?
A: Absolutely. The stainless steel body (SS316 or SS316L) combined with PTFE seats offers excellent resistance to many corrosive chemicals. For more aggressive media, we can recommend lining options or alternative materials. Always consult our technical team for media compatibility.Q: Do you offer fire-safe certification for the KUA ball valve?
A: Yes, fire-safe design compliant with API 607 is available as an option. Please specify when ordering, and we will provide the necessary documentation.Q: What is the warranty period for this valve?
A: We offer a standard 12-month warranty from the date of shipment against manufacturing defects. Extended warranty options can be negotiated for large or long-term projects.Q: How do I select the correct actuator for the KUA ball valve?
A: Actuator selection depends on valve size, pressure rating, and required torque. We provide a detailed torque chart and actuator sizing guide. Our engineers can assist in selecting pneumatic or electric actuators with appropriate accessories (e.g., positioners, solenoids) for your control system.Q: Can you provide samples before bulk order?
A: Yes, sample orders are welcome. We can produce a sample valve according to your specifications, and the cost will be deducted from the bulk order if placed. Please discuss sample details with our sales team.Q: What packing and shipping methods do you use?
A: Each valve is individually wrapped with anti-rust oil, then packed in plywood cases or pallets suitable for sea or air freight. We ship from Shenzhen, Hong Kong, or European ports, and we can arrange door-to-door delivery with reliable logistics partners.
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