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Help CenterJIS F7481 Electric Wafer Butterfly Valve for Marine Water Treatment Systems 24V Remote Control
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As a professional manufacturer with over 8 years of experience in industrial valve production, Shanghai Zhibang Valve is proud to present our JIS F7481 Electric Wafer Butterfly Valve, engineered specifically for demanding marine water treatment applications. This valve combines robust construction with precise remote control capabilities, offering a reliable solution for managing fluid flow in shipboard systems. Our commitment to quality, backed by ISO9001 certification, ensures that every valve meets stringent performance standards for durability and operational efficiency. Designed for integration into modern marine vessels, this product provides ship operators with enhanced control, reduced maintenance, and long-term reliability in critical water treatment processes.
The core of this valve's performance lies in its specialized design and construction. The electric actuator, powered by a standard 24V DC supply, allows for seamless remote operation from a central control panel, eliminating the need for manual intervention in hard-to-reach areas. This feature is particularly valuable in marine environments where space is limited and operational safety is paramount. The wafer-type connection design simplifies installation between flanges, reducing piping complexity and overall system weight—a critical consideration for vessel efficiency.
- Marine-Grade Construction: All components are selected and treated to withstand the corrosive effects of saltwater environments, ensuring extended service life.
- Precise Flow Control: The butterfly disc provides excellent throttling capabilities, allowing for accurate regulation of water flow in treatment processes such as filtration, chlorination, and reverse osmosis feed.
- Low Torque Operation: The optimized disc and seat design minimizes operating torque, reducing the power requirements of the electric actuator and contributing to energy efficiency.
- Fail-Safe Options: The actuator can be configured with fail-safe modes (spring return) to automatically move the valve to a predetermined position (open or closed) in case of power loss, enhancing system safety.
- Position Feedback: Integrated limit switches and potentiometers provide real-time valve position feedback to the control system, enabling precise monitoring and automation.
- Compact Design: The wafer-style body offers a space-saving profile compared to lug or flanged valves, which is ideal for the compact machinery spaces found on ships.
The technical specifications of the valve are designed to meet the rigorous demands of marine service. Below is a summary of key parameters available for this model range:
| Parameter | Specification / Option |
| Design Standard | JIS F7481 (Marine Standard) |
| Nominal Diameter (DN) | DN50 to DN300 (2" to 12") |
| Pressure Rating | PN10 / PN16 / Class 150 |
| Actuator Supply Voltage | 24V DC (Standard), Other voltages available |
| Actuator Protection | IP67 (Water and dust proof) |
| Body Material Options | Cast Iron, Ductile Iron, Stainless Steel (CF8M) |
| Disc Material Options | Stainless Steel 316, Nickel-Plated, Coated |
| Seat Material Options | EPDM (for fresh water), NBR, Viton (for chemicals) |
| Control Signal | On/Off, 4-20mA modulating, Profibus/Modbus optional |
| Operating Temperature | -10°C to +120°C (depending on seat material) |
For customers, the advantages translate into tangible operational benefits. The remote control capability centralizes valve operations, reducing crew workload and enhancing response times. Compliance with the JIS F7481 standard provides assurance of suitability for marine applications, often a requirement for vessel classification society approvals. The modular design of the actuator allows for easy maintenance or replacement without removing the valve body from the pipeline, minimizing downtime. Furthermore, the energy-efficient 24V DC system is compatible with standard shipboard power supplies, avoiding the need for complex voltage conversions.
Our global reach, with exports valued between US$1-1.5 million annually to markets including North America, Europe, Southeast Asia, and Oceania, demonstrates the international acceptance of our quality. We ship efficiently from major ports like Shanghai, Guangzhou, and Hong Kong, ensuring reliable delivery. The trust of shipbuilders and marine system integrators worldwide is built on our consistent delivery of valves that perform reliably in critical applications. Choosing our electric wafer butterfly valve means investing in a component that contributes to the overall efficiency, safety, and compliance of your marine water treatment system.
Frequently Asked Questions (FAQ)
Q1: Is this valve suitable for seawater applications?
A1: Yes, when configured with appropriate materials such as Stainless Steel 316 body/disc and EPDM or Viton seats, this valve is designed to handle seawater and other corrosive fluids common in marine systems.
Q2: What does "JIS F7481" compliance mean?
A2: JIS F7481 is a Japanese Industrial Standard specifically for marine butterfly valves. It defines requirements for design, materials, pressure ratings, and testing, ensuring the valve is fit for purpose in marine environments.
Q3: Can the valve be operated manually if the power fails?
A3: The standard electric actuator typically requires power. However, a manual override feature (handwheel) is available as an optional accessory for emergency manual operation.
Q4: What is the lead time for this product?
A4: Lead time varies based on size, material specification, and order quantity. Standard configurations often have shorter lead times. Please contact us with your specific requirements for an accurate delivery schedule.
Q5: Do you provide technical support for system integration?
A5: Yes, as a manufacturer, we provide technical documentation, wiring diagrams, and support to assist with the integration of the valve and actuator into your marine control system.
Q6: Are spare parts readily available?
A6: We maintain an inventory of common spare parts such as seals, seats, and gaskets to ensure quick availability for maintenance needs, supporting the long-term operation of your equipment.
Q7: Can the valve be used for modulating (throttling) control, not just on/off?
A7: Absolutely. While the standard offering is for on/off service, we can provide actuators with proportional control (e.g., 4-20mA input) for precise flow modulation in water treatment processes.
Q8: What certifications accompany the valve?
A8: Our manufacturing process is ISO9001 certified, ensuring consistent quality control. Specific product certifications can be discussed based on your project's classification society requirements (e.g., ABS, DNV, LR).
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