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Home > Industrial Equipment & Components > Valve > Gate Valve > DN50-DN300 Electric Marine Gate Valve Compliant With GB/T Standard, PN6.4MPa

DN50-DN300 Electric Marine Gate Valve Compliant With GB/T Standard, PN6.4MPa

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Product Spotlights

DN50-DN300 electric marine gate valve compliant with GB/T, rated PN6.4MPa. Features electric actuation for remote/automated control, enhancing safety and efficiency onboard. Constructed with corrosion-resistant materials (cast steel/stainless steel) for durability in seawater. Full-bore design minimizes pressure drop. ISO9001 certified manufacturing ensures reliable quality for global marine and offshore applications.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Application:

Other, Marine and Offshore Systems

Material:

Other, Cast Steel / Stainless Steel (Optional)

Valve Type:

Electric Marine Gate Valve

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Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
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Application Other, Marine and Offshore Systems

Material Other, Cast Steel / Stainless Steel (Optional)

Valve Type Electric Marine Gate Valve

Size Range DN50 to DN300

Pressure Rating PN6.4MPa

Compliance Standard GB/T Standard

Operation Mode Electric Actuator

Connection Type Flanged (Standard)

Sealing Type Metal Seated / Resilient Seated (Optional)

As a dedicated manufacturer with years of experience in fluid control solutions, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our DN50-DN300 Electric Marine Gate Valve. Engineered to meet the rigorous demands of maritime applications, this valve combines robust construction with precise electric actuation, ensuring reliable isolation and control of pipelines in challenging marine environments. Our commitment to the GB/T standard and a pressure rating of PN6.4MPa underscores our focus on delivering products that prioritize safety, durability, and operational efficiency for shipbuilders, offshore platform operators, and marine engineering contractors worldwide.

The core value of this electric marine gate valve lies in its seamless integration of manual valve reliability with automated control convenience. Designed for critical service where remote operation or frequent cycling is required, it eliminates the need for manual labor in hard-to-reach areas, enhancing onboard safety and operational workflow. Built to withstand corrosive seawater, high pressure, and constant vibration, it is a cornerstone for modern vessel piping systems, ballast systems, fuel lines, and other essential marine circuits.

Key Product Features & Technical Advantages:

Superior Corrosion Resistance: The valve body and internal components are typically crafted from high-grade cast steel or optional stainless steel (upon request), offering excellent protection against saltwater corrosion and extending service life in harsh marine conditions.
Precise Electric Actuation: Equipped with a reliable electric actuator, the valve allows for smooth, accurate opening and closing. Features include local control, remote signal compatibility (e.g., 4-20mA, switch signals), and optional fail-safe modes (spring return) for enhanced system security.
Robust Pressure Handling: Rated for PN6.4MPa, the valve is designed to maintain a tight seal and structural integrity under high-pressure conditions common in marine hydraulic systems, fire-fighting lines, and tanker pipelines.
Full-Bore Design: The gate valve features a full-port design when fully open, minimizing pressure drop and allowing for the unobstructed passage of fluids, which is crucial for efficient system performance and pigging operations.
Easy Installation & Maintenance: Standard flanged connections per relevant standards facilitate straightforward installation. The design often allows for in-line maintenance of seats and seals without removing the entire valve body, reducing downtime and maintenance costs.
Compliance & Quality Assurance: Manufactured in compliance with relevant GB/T standards, ensuring dimensional interchangeability and performance reliability. Our production is backed by an ISO9001 certified quality management system, guaranteeing consistent product quality from raw material to finished valve.

Detailed Technical Specifications:

Parameter	Specification / Value
Valve Type	Electric Operated Marine Gate Valve
Size Range (Nominal Diameter)	DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300
Pressure Rating	PN6.4MPa (Class 400)
Design & Test Standard	GB/T Standard (e.g., GB/T 12234 for gate valves)
Body Material (Typical)	WCB Cast Steel / CF8 Stainless Steel (Optional)
Seat & Seal Material	Stainless Steel / Enhanced Rubber (Customizable)
Actuator Type	Multi-turn Electric Actuator
Power Supply	AC/DC, various voltages available (e.g., 110VAC, 220VAC, 24VDC)
Control Signal	Switch Control, 4-20mA Analog Control, Profibus/Modbus (Optional)
Operating Temperature	-29°C to +425°C (depending on seat material)
Connection End	Flanged (RF, FF), dimensions per GB/T, ANSI, JIS, etc.
Protection Class (Actuator)	IP67, IP68 (Optional for submersible applications)

Benefits for Your Marine Operations:

Enhanced Operational Safety: Remote operation minimizes personnel exposure to hazardous areas or high-pressure zones onboard.
Improved Process Efficiency: Rapid and reliable valve actuation supports automated control sequences, reducing cycle times for ballasting, cargo handling, or system isolation.
Reduced Lifetime Costs: Durable construction and corrosion-resistant materials lower the frequency of repairs and replacements. The electric actuator's reliability reduces manual intervention costs.
System Integration Flexibility: Compatible with various control systems (DCS, PLC) through standard signals, enabling seamless integration into modern vessel automation networks.
Global Compliance Support: Adherence to GB/T standards facilitates acceptance in many international markets, particularly where Chinese standards or equivalent specifications are recognized.

Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, has rapidly grown into a trusted supplier with an annual export value ranging between US$1 Million and US$1.5 Million. Our valves reach diverse global markets, including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Mid East, and across Europe and Asia. This extensive reach is a testament to the reliability and competitive quality of our products. Our ISO9001 certification is not just a badge; it's a systematic guarantee of our manufacturing rigor. Combined with efficient logistics from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely delivery to keep your projects on schedule. Choose our DN50-DN300 Electric Marine Gate Valve for a solution that delivers unwavering performance, simplifies your operations, and provides long-term value. Contact us today to discuss your specific requirements or to request a detailed quotation.

Frequently Asked Questions (FAQ)

Q: What is the primary advantage of an electric gate valve over a manual one for marine use?
A: The key advantage is the ability for remote and automated operation. This enhances safety by keeping crew away from potentially dangerous valve locations, improves operational speed in critical sequences (like emergency shutdowns), and allows for integration into centralized control systems for more efficient vessel management.
Q: Can this valve be used with seawater directly?
A: Yes, it is designed for marine environments. When ordered with appropriate materials like stainless steel (CF8/CF8M) or corrosion-resistant coated cast steel, it is suitable for handling seawater, ballast water, and other corrosive marine fluids. Specify your fluid medium during inquiry for the correct material recommendation.
Q: Are the electric actuators waterproof?
A: Standard actuators typically have a protection rating of IP67, making them dust-tight and protected against temporary immersion. For permanently submerged or highly washdown applications, an IP68-rated actuator option is available upon request.
Q: Is the valve suitable for both on/off service and throttling (flow control)?
A: Gate valves are primarily designed for isolation (fully open or fully closed). Using them for frequent throttling can cause vibration, seat wear, and gate damage. For precise flow control in marine systems, we recommend considering our electric control valves or globe valves.
Q: What is the lead time for an order of these valves?
A: Lead time depends on the order quantity, specific size, material, and actuator configuration. Standard models in common sizes may have shorter lead times. We provide accurate delivery estimates upon receipt of your detailed specifications and quantity.
Q: Do you provide custom flanges to match non-GB/T piping standards?
A: Yes, customization is available. While compliant with GB/T, we can manufacture flanges to match other international standards such as ANSI, DIN, JIS, or BS based on your project requirements. Please provide the specific standard and pressure class needed.
Q: What after-sales support and warranty do you offer?
A: We provide comprehensive technical documentation, including installation and maintenance manuals. Our valves come with a standard warranty covering material and workmanship defects. Our engineering team is available for technical support regarding installation, troubleshooting, and spare parts.
Q: How does the PN6.4MPa rating compare to other pressure classes like ANSI Class?
A: PN6.4MPa is approximately equivalent to ANSI Class 400. This indicates the valve's maximum allowable working pressure at a reference temperature. It is suitable for a wide range of high-pressure applications in marine systems.