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Help CenterDN25 to DN200 Marine Electric Control Ball Valve, 4-20mA Input, PN16 Pressure Rating
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As a leading manufacturer with a strong commitment to quality and innovation, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our DN25 to DN200 Marine Electric Control Ball Valve. Engineered for the demanding environments of maritime and offshore applications, this valve integrates precise 4-20mA control with robust PN16 pressure handling, offering reliable flow management for critical shipboard systems. Since our establishment in 2016, we have dedicated ourselves to producing valves that meet the rigorous standards of the global marine industry, ensuring operational safety and efficiency for our clients worldwide. This product exemplifies our expertise in combining automated control with durable valve construction, providing a solution that enhances system automation and reduces manual intervention.
This marine-grade electric control ball valve is designed to deliver exceptional performance in controlling the flow of liquids and gases in piping systems. Its core functionality is driven by an electric actuator that responds accurately to a standard 4-20mA control signal, allowing for precise modulating control or straightforward on/off operation. This capability is essential for automated processes in engine rooms, ballast systems, fuel lines, and cooling circuits on various vessels and offshore platforms.
Key Technical Specifications and Advantages:
- Precise Flow Control: The 4-20mA input signal interface ensures high-precision positioning of the ball, enabling fine-tuned flow rate control which is crucial for process stability and efficiency.
- Robust Pressure Handling: With a PN16 pressure rating, the valve is built to withstand significant system pressures commonly encountered in marine hydraulic and pneumatic systems.
- Wide Size Range: Available from DN25 (approximately 1 inch) to DN200 (approximately 8 inches), this valve series can be integrated into various pipeline diameters across a ship's infrastructure.
- Corrosion Resistance: Constructed with materials like carbon steel with protective coatings or stainless steel options, the valve offers excellent resistance to saltwater corrosion and harsh marine atmospheres.
- Durable Seal Design: Seats made from advanced polymers like PTFE provide a tight, long-lasting seal, ensuring minimal leakage and reliable shut-off even after prolonged use.
- Integrated Actuator Design: The electric actuator is often housed in a weatherproof or even explosion-proof enclosure (optional), making it suitable for challenging marine environments.
Primary Benefits for Your Operations:
- Enhanced System Automation: Enables seamless integration into shipboard PLCs and control systems, reducing the need for manual valve operation and improving overall system responsiveness.
- Improved Safety and Reliability: Automated control allows for rapid response to emergency shutdown (ESD) signals or process deviations, enhancing the safety profile of critical systems.
- Reduced Maintenance Costs: The robust construction and quality materials lead to extended service intervals and lower lifetime costs due to reduced downtime and part replacements.
- Operational Flexibility: The modulating control capability allows for optimized process parameters, such as precise cooling water flow or fuel dosing, which can contribute to energy savings and operational efficiency.
Detailed Technical Parameters Table:
| Parameter | Specification / Option |
|---|---|
| Valve Size Range | DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200 |
| Pressure Rating | PN16 (16 bar) |
| Control Signal | 4-20mA DC (Standard) |
| Power Supply (Actuator) | 24V DC, 110V AC, 220V AC, 380V AC (Available upon request) |
| Body Material | WCB Carbon Steel, CF8/CF8M Stainless Steel, Duplex Steel (Optional) |
| Ball & Stem Material | Stainless Steel (Standard) |
| Seat & Seal Material | PTFE, Reinforced PTFE, PEEK (Customizable) |
| Connection Type | Flanged (RF, RTJ), Threaded (Optional) |
| Operating Temperature | -20°C to +180°C (Depends on seat material) |
| Flow Characteristic | Approximately Equal Percentage |
| IP Protection (Actuator) | IP65, IP67, IP68 (Optional) |
| Explosion Proof Certification | Available upon request for hazardous areas |
Frequently Asked Questions (FAQ):
Q1: What is the primary advantage of using a 4-20mA signal for this valve?
A1: The 4-20mA analog signal is a robust industry standard for process control. It allows for precise, continuous positioning of the valve (modulating control) rather than simple open/close commands, enabling fine-tuned flow regulation. This signal type is also less susceptible to electrical interference over long cable runs common on ships.
Q2: Can this valve be used for seawater applications?
A2: Yes, it is designed for marine environments. For seawater service, we recommend specifying body materials like 316 stainless steel or duplex steel, along with compatible seat materials, to ensure superior corrosion resistance and long service life.
Q3: What is the delivery lead time for a custom order, such as a specific size or material?
A3: Standard sizes and configurations typically have shorter lead times. For customized orders involving special materials, certifications, or actuator specifications, the lead time may vary. We recommend contacting our sales team with your specific requirements for an accurate production schedule.
Q4: How does the PN16 pressure rating translate to other standards like ANSI Class?
A4: PN16 is a metric pressure rating equivalent to approximately 16 bar at ambient temperature. This is roughly comparable to ANSI Class 150 for the given size range. Our technical team can provide detailed pressure-temperature charts for your specific application.
Q5: Is manual override available on the electric actuator?
A5: Yes, most of our electric actuators come equipped with a manual handwheel or crank for emergency or maintenance override, allowing for manual operation in case of power loss or during system commissioning.
Q6: Do you provide support for integrating the valve into an existing shipboard control system?
A6: We provide detailed wiring diagrams, communication protocols (if applicable), and technical specifications to facilitate integration. For complex system integrations, our engineering team is available for consultation to ensure compatibility.
Q7: What are the main shipping ports and delivery terms?
A7: We ship globally from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing. Delivery terms (e.g., FOB, CIF) can be negotiated based on your location and order volume.
Q8: What after-sales services do you offer?
A8: We provide comprehensive after-sales support including technical documentation, a standard warranty on materials and workmanship, and access to spare parts. Our service network covers our main markets to assist with any operational queries.
Backed by our ISO9001 certified manufacturing processes and nearly a decade of industry experience since 2016, Shanghai Zhibang Valve guarantees a product built to exacting standards. Our annual export value of US$1-1.5 Million and presence in key markets across North America, South America, Europe, Asia, Africa, and Oceania testify to the global trust in our marine valves. We understand the critical nature of marine components and are committed to delivering reliability. Choose our DN25 to DN200 Marine Electric Control Ball Valve for a solution that combines precise automation with marine-grade durability, and contact us today to discuss how we can meet your specific project requirements.
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