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Home > Industrial Equipment & Components > Valve > Gate Valve > Ductile Iron Marine Gate Valve With Extended Warranty, CB/T3591 Standard, Technical Support Provided
Ductile Iron Marine Gate Valve With Extended Warranty, CB/T3591 Standard, Technical Support Provided
Product Spotlights
CB/T3591 standard marine gate valve made of durable ductile iron for superior strength in harsh offshore environments. Features include reliable sealing, corrosion-resistant options, and is backed by an extended warranty and direct manufacturer technical support. Ideal for seawater, fuel, and ballast systems on ships and platforms.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Ductile Iron
Standard:
Other, CB/T3591 Marine Standard
Application:
Other, Marine and Offshore Systems
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Ductile Iron
Standard
Other, CB/T3591 Marine Standard
Application
Other, Marine and Offshore Systems
Warranty
Extended Warranty Provided
Service
Technical Support Provided
Port Type
Flanged End (Standard)
Operation
Handwheel or Gear Operated
Pressure Rating
PN10 to PN25 Available
Seat Material
Bronze or Stainless Steel
As a leading manufacturer in the valve industry, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our premium Ductile Iron Marine Gate Valve. Engineered to meet the rigorous demands of maritime and offshore applications, this valve is manufactured in strict compliance with the CB/T3591 standard, ensuring reliability and performance in critical shipboard systems. With our commitment to quality backed by an extended warranty and dedicated technical support, we provide our global partners in North America, Europe, Asia, and beyond with a robust solution for fluid control, combining durability with exceptional service.
This valve is designed for isolation service in pipelines carrying seawater, ballast, fuel oil, lubricating oil, and other marine fluids. Its robust construction and specialized design features make it a cornerstone for safety and efficiency on vessels and offshore platforms.
- Superior Durability: The ductile iron body offers excellent strength and impact resistance, significantly outperforming standard cast iron, especially in the challenging corrosive marine environment.
- Strict Maritime Compliance: Full adherence to the CB/T3591 Chinese ship standard guarantees the valve meets specific requirements for marine use, including materials, pressure ratings, and testing protocols.
- Reliable Sealing Performance: Features a precision-machined wedge and seat assembly. Available seat materials like bronze or stainless steel ensure tight shut-off and long service life against abrasive media.
- Corrosion Protection: Standard exterior coatings such as epoxy paint provide effective protection against saltwater spray and atmospheric corrosion. Internal coatings can be customized upon request.
- Extended Service Life: The design minimizes internal cavities where sediment can accumulate, and the sturdy stem connection ensures smooth operation even after prolonged periods of inactivity.
- Global Logistics Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and efficient delivery to our main markets worldwide.
Our technical team is always ready to assist with selection, installation, and maintenance guidance, ensuring optimal performance of the valve in your specific application.
Key Technical Specifications:
| Parameter | Specification |
| Body Material | Ductile Iron (QT400-18, QT450-10) |
| Design Standard | CB/T3591 |
| Pressure Rating (PN) | 10, 16, 25 |
| Size Range (DN) | DN50 to DN500 |
| End Connection | Flanged (RF/FF), as per standard |
| Seat & Wedge Material | Bronze, Stainless Steel (Optional) |
| Stem Material | Stainless Steel |
| Operation | Handwheel (Standard), Gear Operator (for larger sizes) |
| Test & Inspection | Shell Test, Seat Leakage Test per Standard |
Benefits for Your Operations:
- Enhanced System Reliability: Reduces the risk of in-service failure, minimizing downtime and maintenance costs for ship operators.
- Regulatory Confidence: Using CB/T3591 certified components simplifies compliance for shipyards and repair facilities, particularly for vessels destined for or operating in regions recognizing this standard.
- Total Cost of Ownership: The extended warranty and robust construction translate into lower long-term costs, protecting your investment.
- Expert Support: Direct access to our manufacturer's technical team helps resolve operational queries quickly, ensuring correct application and troubleshooting.
Backed by our ISO9001:2015 certified quality management system and an annual export value demonstrating our global reach and reliability, Shanghai Zhibang stands as a trusted partner. Our valves are proven in diverse markets from the demanding waters of Northern Europe to the tropical climates of Southeast Asia. We combine manufacturing expertise with a customer-centric approach, offering not just a product, but a dependable fluid control solution supported by a substantial warranty and responsive service. Contact us today to discuss how our Ductile Iron Marine Gate Valve can enhance the safety and efficiency of your maritime projects.
Frequently Asked Questions (FAQ)
-
What is the main advantage of ductile iron over gray cast iron for marine valves?
Ductile iron has a much higher tensile strength and impact toughness than gray cast iron. This makes it far more resistant to shock loads and pressure surges common in marine piping systems, significantly reducing the risk of catastrophic failure. -
Is the CB/T3591 standard recognized internationally?
CB/T3591 is a Chinese national standard specifically for ship valves. It is widely recognized and accepted in shipbuilding and repair, especially for vessels built in or for the Asian market. It specifies rigorous requirements for design, material, and testing suitable for marine environments. -
What does the "extended warranty" cover?
Our extended warranty covers defects in materials and workmanship under normal service conditions as defined in the product manual. It provides a longer coverage period than our standard warranty, offering added peace of mind. Specific terms are provided with the commercial offer. -
Can this valve be used for seawater service?
Yes, it is designed for seawater applications. The combination of a ductile iron body with protective coatings and corrosion-resistant trim materials (like bronze or stainless steel seats) makes it suitable for handling seawater, ballast, and other saline fluids. -
Do you provide customization, such as different flange standards or actuators?
Yes, customization is available. We can supply valves with flanges to other standards (e.g., JIS, ANSI) upon request. The valve can also be prepared for the installation of electric, pneumatic, or hydraulic actuators for remote operation. -
What kind of technical support do you offer?
Our technical support includes assistance with valve selection based on your service conditions, guidance on installation and maintenance procedures, and troubleshooting advice. Support is available via email, phone, and online communication tools. -
What are the available pressure classes and sizes?
The standard pressure classes are PN10, PN16, and PN25. The valve is typically available in sizes from DN50 (2") up to DN500 (20"). Specific availability for non-standard sizes or pressures can be confirmed upon inquiry. -
How do I ensure I order the correct valve for my application?
Please provide the key parameters: fluid type, operating pressure and temperature, pipe size and flange standard, and required operation method (handwheel/gear/actuated). Our sales engineers will then recommend the most suitable configuration.
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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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