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Three-Piece Electric Marine Ball Valve, DIN 3357, With Position Feedback Signal
Product Spotlights
DIN 3357 compliant three-piece marine ball valve for easy in-line maintenance. Features an electric actuator with continuous position feedback signal for remote monitoring and control integration. Constructed from marine-grade materials (SS316/carbon steel) for corrosion resistance. Includes manual override for fail-safe operation. Ideal for seawater, fuel, and oil systems on ships and offshore platforms.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Carbon Steel / Stainless Steel / Other Marine-grade alloys
Application:
Other, Marine piping systems
Connection Standard:
DIN 3357 Flanged
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Carbon Steel / Stainless Steel / Other Marine-grade alloys
Application
Other, Marine piping systems
Connection Standard
DIN 3357 Flanged
Configuration
Three-Piece Design
Actuator Type
Electric, with Position Feedback Signal
Valve Type
Ball Valve
Operation
Electric quarter-turn (90°)
Optional Features
Manual override, limit switches, various IP ratings
Suitable Media
Seawater, fuel, oil, air, other marine fluids
As a specialized manufacturer of industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to introduce our robust Three-Piece Electric Marine Ball Valve built to DIN 3357 standards. Engineered specifically for the demanding marine and offshore environments, this valve combines reliable quarter-turn operation with precise electric actuation and critical position feedback. It is designed to offer superior sealing, easy maintenance, and enhanced control for shipboard piping systems, offshore platforms, and coastal infrastructure, ensuring safe and efficient fluid handling in critical applications.
Core Product Features & Technical Advantages:
-
Three-Piece Construction: This design is a cornerstone of marine valve reliability.
- The body can be separated from the end connections without disturbing the pipeline, allowing for easy in-line maintenance, inspection, and seat replacement.
- Eliminates the need for extensive pipe disassembly, significantly reducing vessel downtime and maintenance costs.
- Provides superior alignment of the ball and seats, enhancing seal integrity and service life.
-
DIN 3357 Flanged Connection: Complies with the widely recognized European standard for PN10/PN16 flanged ball valves.
- Ensures dimensional interchangeability and compatibility with a vast range of European-designed marine piping systems.
- Facilitates straightforward installation and replacement within existing infrastructure.
-
Electric Actuator with Position Feedback: The integrated electric actuator provides automated, remote operation.
- The position feedback signal (typically 4-20mA or potentiometer) is a critical feature, providing real-time, continuous indication of the valve's open/closed status to the ship's control system or control room.
- Enables integration into automated control loops, monitoring systems, and alarm circuits for enhanced operational safety and process control.
- Available with various control voltages (e.g., 24VDC, 110VAC, 220VAC, 380VAC) to match shipboard electrical systems.
-
Marine-Grade Materials & Construction: Built to withstand harsh sea conditions.
- Body and ball materials typically include CF8M (316 stainless steel), WCB carbon steel with appropriate coatings, or other alloys resistant to seawater corrosion.
- Seats and seals are made from durable polymers like PTFE, reinforced PTFE, or other materials compatible with the specific media (fuel, seawater, lube oil).
- Actuator housing is often rated to high IP (Ingress Protection) standards (e.g., IP67, IP68) for protection against water and dust.
-
Enhanced Functionality & Options:
- Manual Override: A handwheel or lever is typically provided on the actuator for manual operation in case of power failure or for local control.
- Limit Switches: Can be equipped with auxiliary switches to provide discrete open/closed signals in addition to the analog position feedback.
- Heating Jacket: Optional steam or electric tracing jacket available for applications requiring freeze protection or viscosity maintenance of the media.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Valve Design Standard | DIN 3357 F4 / F5 (Flanged) |
| Pressure Rating (PN) | PN10, PN16, PN25 (Standard: PN16) |
| Size Range (DN) | DN15 (1/2") to DN200 (8") commonly available |
| Body Material Options | WCB (A216 Gr.WCB), CF8 (304 SS), CF8M (316 SS), Duplex Stainless Steel |
| Ball Material | Typically matches body material or is chrome-plated |
| Seat Material | PTFE, RPTFE, PEEK, Metal Seated options |
| Actuator Power Supply | 24VDC, 110VAC, 220VAC, 380VAC, 50/60Hz |
| Position Feedback Signal | 4-20mA (2-wire), 0-10VDC, Potentiometer (1kΩ, 5kΩ) |
| Operation Time | Typically 15-60 seconds for full 90° travel (depends on size) |
| Ambient Temperature Range | -20°C to +80°C (Actuator), wider range available for valve |
| Ingress Protection (IP) | IP65, IP67, IP68 (Standard: IP67) |
| Optional Features | Manual Override, Limit Switches, Local Position Indicator, Heating Jacket, Solenoid Valve (for emergency shutdown) |
Key Benefits for Marine Operators:
- Reduced Maintenance & Lifetime Cost: The three-piece design allows for seat replacement and seal maintenance without removing the valve body, minimizing labor and downtime.
- Enhanced System Safety & Monitoring: The position feedback signal provides critical data for central control systems, allowing for remote monitoring, automated sequences, and immediate fault detection.
- Reliable Performance in Harsh Conditions: Constructed from corrosion-resistant materials and protected actuators, ensuring long-term reliability in salty, humid marine atmospheres.
- Operational Flexibility: Remote electric control reduces the need for manual intervention in hard-to-reach or hazardous areas onboard.
- Standard Compliance: DIN 3357 compliance ensures compatibility and ease of sourcing spare parts within the global marine industry.
Frequently Asked Questions (FAQ):
-
Q: What is the primary advantage of the three-piece design over a two-piece or one-piece ball valve for marine use?
A: The main advantage is maintainability. On a vessel, space is constrained and downtime is costly. The three-piece design allows the center section containing the ball and seats to be removed for service or seat replacement while the end flanges remain bolted to the pipe. This enables faster, easier repairs without full pipeline disassembly. -
Q: How does the "position feedback signal" work, and why is it important?
A: The actuator contains a sensor (like a potentiometer) that translates the valve's angular position (0°=closed, 90°=open) into an electrical signal, commonly a 4-20mA current loop. This signal is sent back to the control panel, giving operators a continuous, real-time readout of the valve's exact position, not just a simple open/closed status. This is vital for precise process control, automated sequences, and safety monitoring. -
Q: Can this valve be operated manually if the power fails?
A: Yes, absolutely. Our electric actuators are equipped with a manual override mechanism, usually a handwheel or a declutchable lever. This allows crew members to operate the valve locally in the event of an electrical failure, ensuring system control is never lost. -
Q: What materials do you recommend for handling seawater?
A: For seawater service, we strongly recommend CF8M (AISI 316 stainless steel) for the valve body, ball, and stem. For even more corrosive environments or higher chloride content, super duplex stainless steel or nickel-aluminum bronze are available options. Seat material would typically be PTFE or a similar chemically inert polymer. -
Q: Are these valves suitable for fuel oil service?
A: Yes, they are commonly used for fuel oil transfer, service, and vent lines. The material selection is key—carbon steel bodies with suitable coatings or stainless steel are used. Seat materials must be compatible with the specific fuel type to prevent swelling or degradation. Fire-safe design options per API 607/API 6FA standards are also available upon request. -
Q: What information do you need to provide an accurate quotation?
A> To ensure the valve meets your exact requirements, please provide: 1) Nominal Size (DN), 2) Required Pressure Class (PN), 3) Fluid Media and Temperature, 4) Preferred Body/Ball/Seat Materials, 5) Actuator Voltage and required feedback signal type, 6) Any special requirements (IP rating, heating jacket, certifications). -
Q: Do you offer different types of electric actuators?
A: Yes. We can supply actuators from several reputable brands or our own manufactured units. Options include on/off type (for simple open/close) or modulating type (for precise flow control), with varying torque outputs to match the valve size and differential pressure. -
Q: What is your typical lead time for such valves?
A> For standard configurations in common sizes and materials, lead time is typically 4-6 weeks ex-works. Customized configurations or special materials may require additional time. We maintain strategic inventory for some common items to expedite urgent orders.
Backed by our ISO9001 certified manufacturing processes and nearly a decade of industry experience since 2016, Shanghai Zhibang Valve delivers products that meet rigorous quality standards. Our valves are trusted across global markets including North America, Europe, Southeast Asia, and the Middle East, with an annual export value reflecting consistent international demand. Shipped efficiently from major ports like Shanghai and Guangzhou, this Three-Piece Electric Marine Ball Valve represents a reliable, technologically advanced solution designed to enhance the safety, efficiency, and control of your marine fluid systems. Contact us today to discuss your specific application requirements and receive detailed technical support and competitive pricing.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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