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Marine Gate Valve, Ductile Iron Body per CB/T3591, Full Bore, DN80-DN250 Sizes Available
Product Spotlights
Marine-grade ductile iron gate valve compliant with CB/T3591 standard. Features a full bore design from DN80 to DN250 for minimal flow resistance. Offers robust construction for seawater, ballast, and fire-fighting systems. Available with handwheel or optional gear operation. Epoxy coated for superior corrosion resistance in harsh maritime environments.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Ductile Iron Body per CB/T3591
Application:
Other, Marine & Offshore Piping Systems
Size Range:
DN80, DN100, DN150, DN200, DN250
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Ductile Iron Body per CB/T3591
Application
Other, Marine & Offshore Piping Systems
Size Range
DN80, DN100, DN150, DN200, DN250
Port Type
Full Bore
Product Standard
CB/T3591 Marine Standard
Connection Type
Flanged (Standard), Optional
Operation Type
Handwheel (Standard), Gearbox Optional
Pressure Rating
Available in PN10, PN16, PN25
Temperature Range
-10°C to 120°C
Coating/Finish
Epoxy Coated, Color Customizable
As a leading manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our robust Marine Gate Valve series. Engineered specifically for demanding maritime and offshore applications, this valve ensures reliable flow control and isolation in critical shipboard piping systems. With over eight years of dedicated manufacturing experience since 2016 and a strong export presence across continents, we understand the precise requirements for durability and performance in marine environments. Our full bore, ductile iron gate valves are designed to meet the stringent CB/T3591 standard, offering superior strength and corrosion resistance for long-term, maintenance-free operation.
This marine gate valve is constructed with a high-grade ductile iron body, providing exceptional tensile strength and impact resistance compared to standard cast iron. The full bore design minimizes pressure drop across the valve, ensuring efficient fluid flow and reducing pumping energy costs. It is an ideal solution for main seawater lines, ballast systems, fire-fighting lines, and general service applications on various vessels and offshore platforms.
Key Features & Technical Advantages:
- Superior Material & Construction: The valve body complies with the CB/T3591 marine standard for ductile iron castings, ensuring reliable performance under high pressure and shock loads common in marine operations.
- Full Bore Design: Provides an unobstructed flow path equal to the pipeline's internal diameter, reducing turbulence and pressure loss, which is crucial for efficient system performance.
- Wide Size Availability: Available in a comprehensive range from DN80 to DN250, catering to diverse piping requirements on different vessel sizes and systems.
- Robust Stem & Sealing: Features a rising stem with a trapezoidal thread for smooth, precise operation. The sealing surfaces are precision machined and paired with durable sealing materials for a bubble-tight shut-off.
- Versatile Operation: Standard handwheel operation is ergonomically designed. For larger sizes (typically DN200 and above), a gearbox operator is available upon request to reduce required operating torque.
- Corrosion Protection: Exterior surfaces are treated with a high-quality epoxy coating, offering excellent resistance to saltwater spray and harsh atmospheric conditions.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Product Standard | CB/T3591 |
| Body Material | Ductile Iron (QT400-18/450-10) |
| Size Range (DN) | 80, 100, 150, 200, 250 |
| Pressure Rating (PN) | 10, 16, 25 (Customizable) |
| Temperature Range | -10°C to +120°C |
| Connection Type | Flanged, RF Face (Standard as per GB/T 17241.6) |
| Stem Material | Stainless Steel (2Cr13 or equivalent) |
| Seat & Wedge | Ductile Iron with NBR/EPDM sealing or Metal Seated |
| Operation | Handwheel (Standard), Gear Operator (Optional for DN200+) |
| Coating | Epoxy Paint, Color as per requirement |
Benefits for Our Clients:
- Enhanced System Reliability: The durable construction minimizes the risk of in-service failure, reducing downtime and maintenance costs for ship operators.
- Improved Flow Efficiency: The full bore design contributes to lower system resistance, which can lead to energy savings for pump-driven systems.
- Global Compliance: Manufactured to recognized marine standards, facilitating approval processes for new builds and retrofits in international markets.
- Supply Chain Confidence: Backed by our ISO9001 certification and annual export volume of US$1-1.5 million, we guarantee consistent quality and reliable delivery from major Chinese ports like Shanghai and Guangzhou.
Trust in a proven supplier. Shanghai Zhibang Valve has established itself as a reliable partner for marine valve solutions, with our products successfully serving clients in North America, Europe, Southeast Asia, and beyond. Our commitment to quality, backed by the ISO9001 system, ensures every valve meets rigorous production standards. The availability of this marine gate valve in a full DN80-DN250 range provides you with a versatile, high-performance component for your critical marine piping projects. Contact us today to discuss your specific requirements, request a detailed quotation, or learn more about our comprehensive valve portfolio tailored for global maritime applications.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of a full bore gate valve in marine applications?
A: A full bore design ensures the internal diameter of the valve matches the pipeline, creating a smooth, uninterrupted flow path. This minimizes pressure drop and turbulence, which is essential for maintaining efficient pump performance and reducing energy consumption in shipboard systems like seawater cooling or ballast transfer. -
Q: How does ductile iron compare to cast iron for the valve body?
A: Ductile iron offers significantly higher tensile strength, yield strength, and impact resistance than standard cast iron. It provides better durability against water hammer, pressure surges, and mechanical shocks commonly encountered in marine environments, leading to a longer service life and enhanced safety. -
Q: Are these valves suitable for seawater service?
A: Yes. The ductile iron body per CB/T3591 is designed for marine use. Combined with a corrosion-resistant epoxy coating on exterior surfaces and appropriate internal sealing materials (like EPDM or NBR), the valve is well-suited for handling seawater, ballast water, and other marine fluids. For highly corrosive media, material upgrades can be discussed. -
Q: What pressure classes (PN) are available?
A: These marine gate valves are typically available in pressure ratings of PN10, PN16, and PN25. The specific pressure class for your order can be confirmed based on your system's design pressure requirements. -
Q: Do you provide valves with gear operators?
A: Yes. While a handwheel is standard, we highly recommend and can supply gearbox operators for valves DN200 and larger. This reduces the manual torque required to open or close the valve, making operation safer and easier, especially in confined engine room spaces. -
Q: What are the standard flanging dimensions?
A: The flanges are manufactured according to GB/T 17241.6 (equivalent to DIN or ANSI/ASME standards can be provided upon request). The standard face type is Raised Face (RF). Please provide your specific pipeline standard requirements when inquiring. -
Q: What is your lead time and shipping capability?
A: As an experienced exporter, we maintain efficient production schedules. Standard size valves often have stock availability. We ship globally from major ports including Shanghai, Guangzhou, and Hong Kong. Lead times and shipping terms (FOB, CIF, etc.) will be detailed in your formal quotation based on order quantity and destination. -
Q: Can you provide documentation like material certificates and test reports?
A> Absolutely. As an ISO9001 certified manufacturer, we can provide standard documentation including material test certificates, pressure test reports, and product data sheets. Specific certification requirements for your project can be discussed and fulfilled.
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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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