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Marine Explosion Proof Electric Gate Valve for LNG Carrier Fuel Management Systems
Product Spotlights
Designed for hazardous zones on LNG carriers, this explosion-proof electric gate valve ensures safe, remote fuel gas isolation. It features cryogenic-compatible construction, reliable electric actuation with fail-safe options, and robust marine-grade materials. Enhances operational safety, reduces manual intervention risk, and integrates seamlessly into shipboard control systems for efficient fuel management.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Stainless steel, bronze, or other marine-grade alloys
Application:
Other, LNG carrier fuel gas supply and management systems
Valve Type:
Electric actuated gate valve
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Stainless steel, bronze, or other marine-grade alloys
Application
Other, LNG carrier fuel gas supply and management systems
Valve Type
Electric actuated gate valve
Explosion Proof Rating
Class I, Division 1 or 2; Zone 1 or 2 compliant
Power Supply
Standard 24V DC, 110V/220V AC, or customizable
Connection Type
Flanged (ANSI/ASME, DIN, JIS, GB) or threaded
Size Range
DN15 to DN300 (1/2“ to 12“)
Pressure Rating
Class 150 to Class 600 (PN16 to PN100)
Temperature Range
-196°C to +80°C (cryogenic to ambient)
Certification
Manufacturer holds ISO9001 quality management system
As a professional manufacturer with ISO9001-certified processes, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in engineering robust fluid control solutions for demanding maritime applications. Our Marine Explosion Proof Electric Gate Valve is engineered specifically for the critical task of managing fuel gas supply on LNG Carriers. It delivers reliable, safe, and automated on/off control in hazardous areas, ensuring operational integrity and personnel safety. This valve represents our commitment to providing high-performance components that meet the stringent requirements of modern marine fuel systems.
The core function of this valve is to provide secure isolation within the LNG fuel gas system. Its design prioritizes safety in potentially explosive atmospheres, a non-negotiable requirement for vessels carrying liquefied natural gas. The electric actuator enables remote operation from the ship's control room, reducing the need for manual intervention in hazardous zones and enhancing overall operational efficiency.
Key Product Features & Technical Advantages:
- Inherently Safe Design: The valve and its electric actuator are housed within an explosion-proof enclosure, preventing internal sparks or arcs from igniting surrounding flammable gases. This is crucial for areas where LNG vapors may be present.
- Cryogenic Service Compatibility: Constructed from materials and with seals designed to withstand the extreme low temperatures of vaporized LNG, ensuring reliable performance without embrittlement or seal failure.
- High-Cycle Durability: The gate valve mechanism offers a straight-through flow path when open, minimizing pressure drop and turbulence. Its robust construction ensures long service life even with frequent cycling required in fuel management.
- Fail-Safe Options: Available in fail-open or fail-close configurations. In the event of a power loss, the valve automatically moves to a predetermined safe position (open or closed) as required by the specific system logic for safety.
- Precise Sealing: Features a tight-sealing gate and seat design to ensure zero leakage in the closed position, which is vital for system isolation, maintenance safety, and preventing gas wastage.
- Integrated Control & Feedback: The electric actuator typically includes limit switches and potentiometers to provide precise open/close position feedback to the ship's control system, enabling monitoring and integration into automated sequences.
Technical Specifications Overview:
| Parameter | Specification Range / Details |
| Body Material | Stainless Steel (CF8M, 316L), Bronze, Duplex Steel |
| Nominal Diameter (DN) | 15, 20, 25, 32, 40, 50, 65, 80, 100, 150, 200, 250, 300 |
| Pressure Class | Class 150, Class 300, Class 600 (ANSI); PN16, PN25, PN40, PN63, PN100 |
| Seat & Seal Material | PTFE, Reinforced PTFE, Metal-seated (for high temp) |
| Actuator Voltage | 24V DC, 110V AC, 220V AC (Single/Three Phase) |
| Operating Temperature | -196°C to +80°C (Standard); Higher ranges available |
| Connection Standards | Flanged: ANSI B16.5, DIN, JIS, GB; Threaded: NPT, BSP |
| Ingress Protection (IP) | IP66 / IP67 (Actuator Enclosure) |
Benefits for Your LNG Carrier Project:
- Enhanced Safety Compliance: Meets the fundamental safety requirements for equipment in hazardous zones on gas carriers, aiding in overall vessel classification and approval.
- Operational Reliability: Reduces unscheduled downtime through durable construction and reliable actuation, critical for vessel availability and mission success.
- Reduced Manning & Risk: Remote electric operation minimizes the need for crew to access valve locations in potentially hazardous areas during routine operations.
- System Integration Ease: Standard electrical interfaces and feedback signals simplify integration into the vessel's central control and monitoring system (IAS).
- Lifecycle Value: Designed for maintainability with accessible parts, contributing to lower total cost of ownership over the vessel's lifespan.
Backed by our ISO9001 quality management system and years of experience serving global markets from North America and Europe to Southeast Asia and Oceania, Shanghai Zhibang delivers valves that shipowners and shipyards can trust. We understand the critical nature of every component on an LNG carrier. Our valves undergo rigorous testing to ensure they perform under the demanding conditions at sea. With an annual export value reflecting consistent international demand and major shipment ports like Shanghai and Guangzhou ensuring smooth logistics, we are a reliable partner for your marine valve needs. Choose our Marine Explosion Proof Electric Gate Valve to add a layer of safety, control, and reliability to your LNG carrier's fuel management system.
Frequently Asked Questions (FAQ):
-
Q: What specific explosion-proof standards does this valve comply with?
A: The valve is designed and constructed to meet the requirements for Class I, Division 1 or 2 (Hazardous Locations per NEC/CEC) and Zone 1 or 2 (ATEX/IECEx standards). The exact certification can be specified based on project requirements and flag state regulations. -
Q: Is this valve suitable for direct contact with liquid LNG?
A: This valve is primarily designed for fuel gas (vaporized LNG) service within the management system. For liquid LNG lines, specific cryogenic valves with extended bonnets are recommended. Please consult with our engineers for liquid service applications. -
Q: Can you provide valves with different flange standards (e.g., ANSI to DIN adaption)?
A: Yes. We commonly supply valves with ANSI, DIN, JIS, or GB standard flanges. Flange adaptors or valves with specific combination ends can also be provided to meet your piping interface requirements. -
Q: What is the typical lead time for an order of these valves?
A: Lead time depends on the quantity, size, material, and actuator specifications. Standard configurations typically have shorter lead times. We provide accurate delivery schedules upon receipt of detailed specifications. -
Q: Do you offer manual override on the electric actuators?
A: Yes, a manual handwheel or lever override is a standard or optional feature on most of our electric actuators. This allows for manual operation during commissioning, maintenance, or in case of a power failure. -
Q: How do you ensure the valve's performance in the marine corrosive environment?
A: We select marine-grade materials like 316L stainless steel or bronze. Additional protective coatings or specific material grades (e.g., duplex stainless steel) can be applied for particularly aggressive environments or based on the client's specification. -
Q: What kind of warranty or after-sales support do you provide?
A> We offer a standard warranty on our products. Our support includes technical documentation, installation guidance, and access to spare parts. Our experience in exporting to global ports ensures we understand the need for reliable support. -
Q: Can the actuator control signals be integrated with a PLC-based ship control system?
A> Absolutely. The electric actuators are equipped with standard dry contact limit switches (open/close) and often optional analog feedback (4-20mA or 0-10V) for position indication, making integration with PLCs straightforward.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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