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Home > Industrial Equipment & Components > Valve > Gate Valve > CB/T3591 Marine Gate Valve For Freshwater, Ductile Iron Construction, Standard Compliant

CB/T3591 Marine Gate Valve For Freshwater, Ductile Iron Construction, Standard Compliant

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Product Spotlights

CB/T3591 compliant marine gate valve crafted from durable ductile iron for reliable freshwater system control onboard ships. Features robust construction for impact resistance, a tight-sealing mechanism, and standard flanged connections for easy installation. Engineered for long service life and low maintenance, backed by ISO9001 quality assurance and global export expertise.

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

Key Specifications

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Material:

Other, Ductile Iron Body and Disc

Application:

Other, Freshwater Systems Onboard Ships

Standard Compliance:

CB/T3591 Standard

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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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Material Other, Ductile Iron Body and Disc

Application Other, Freshwater Systems Onboard Ships

Standard Compliance CB/T3591 Standard

Port Size Available in various standard sizes

Connection Type Flanged ends as per standard

Operation Type Handwheel operated

Pressure Rating Standard pressure ratings available

Temperature Range Suitable for standard freshwater temperatures

Seat Material Resilient seat material

Coating/Finish Standard corrosion-resistant coating

As a professional valve manufacturer with a strong export footprint, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our CB/T3591 compliant Marine Gate Valve, engineered specifically for freshwater applications onboard vessels. Built with robust ductile iron construction, this valve is designed to deliver reliable shut-off performance, ensuring the integrity and safety of your ship's freshwater piping systems. Our commitment to the ISO9001 quality management system underpins every stage of production, guaranteeing a product that meets the rigorous demands of the marine industry and provides lasting value for shipbuilders and operators worldwide.

This marine gate valve is a critical component for controlling fluid flow in freshwater lines, including potable water, cooling water, and ballast systems. Its design prioritizes durability, ease of operation, and maintenance-free service in the challenging marine environment.

Key Product Features & Technical Advantages:

Ductile Iron Construction: The valve body and disc are manufactured from high-grade ductile iron (nodular cast iron), which offers superior strength, impact resistance, and durability compared to standard cast iron, making it ideal for marine applications.
CB/T3591 Standard Compliance: The valve is designed and produced in strict accordance with the Chinese CB/T3591 standard for marine valves, ensuring compatibility, interchangeability, and reliability within standardized marine piping systems.
Optimized for Freshwater Service: Specifically engineered for freshwater, the valve features compatible sealing materials and internal coatings to prevent corrosion and ensure clean fluid passage, maintaining water quality.
Robust Sealing Mechanism: The valve employs a resilient seat or a metal-to-metal seated design (depending on specification) that provides a bubble-tight seal when fully closed, preventing leaks and ensuring system efficiency.
Easy Operation & Maintenance: Featuring a standard handwheel for manual operation, the valve is easy to open and close. Its design allows for in-line maintenance, reducing downtime and operational costs.
Flanged Connection: Comes with standard flanged ends as per relevant flange standards (e.g., JIS, DIN, ANSI), facilitating secure and leak-proof installation into existing marine piping networks.

Detailed Technical Specifications:

Parameter	Specification
Product Standard	CB/T3591
Body Material	Ductile Iron
Disc Material	Ductile Iron or Bronze
Seat Material	Resilient (e.g., EPDM, NBR) or Metal
Connection Type	Flanged
Operation Type	Manual Handwheel
Nominal Pressure (PN)	Common ratings: PN10, PN16, PN25
Nominal Diameter (DN)	Range typically from DN50 to DN300
Application Fluid	Freshwater (Potable, Cooling, Ballast)
Coating/Finish	Epoxy Coating or other anti-corrosion treatment

Benefits for Our Clients:

Enhanced System Reliability: The durable ductile iron build and compliant design minimize failure risks, contributing to the overall reliability and safety of the vessel's freshwater systems.
Reduced Lifecycle Costs: Long service life and low maintenance requirements translate into lower total cost of ownership for ship owners and operators.
Simplified Procurement & Installation: Compliance with the recognized CB/T3591 standard ensures easy sourcing and straightforward integration into new builds or retrofit projects.
Global Supply Chain Support: With annual exports valued between US$1-1.5 million and shipments from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and efficient delivery to our global clientele across North America, South America, Europe, Asia, Africa, and Oceania.

Choosing Shanghai Zhibang's Marine Gate Valve means partnering with an established manufacturer trusted in markets worldwide. Our ISO9001 certification is a testament to our unwavering focus on quality control and consistent product excellence. The proven performance of our valves in diverse marine environments, coupled with our extensive export experience and flexible logistics from multiple Chinese ports, provides you with a reliable and competitive supply solution. Contact us today to discuss your specific requirements for freshwater system valves and experience the Zhibang difference in quality and service.

Frequently Asked Questions (FAQ):

Q: Is this valve suitable for seawater applications?
A: No, this specific model is designed and optimized for freshwater service only. Using it with seawater may lead to accelerated corrosion. We offer separate valve models specifically constructed for seawater service.
Q: What are the main advantages of ductile iron over gray cast iron for this valve?
A: Ductile iron offers significantly higher tensile strength, better impact resistance, and greater elongation. This makes the valve more durable and less prone to cracking under shock loads or pressure surges common in marine systems.
Q: Can you provide valves with different flange standards, like ANSI or JIS?
A: Yes, while compliant with CB/T3591, we can often supply valves with flanges drilled to other common standards such as ANSI, JIS, or DIN upon request, ensuring compatibility with your specific piping system.
Q: What is the typical delivery lead time for an order?
A: Lead times vary based on order quantity and specific specifications. For standard sizes and configurations, we generally maintain stock for prompt shipment. Please contact our sales team with your details for an accurate timeline.
Q: Do you offer any customization, such as different operator types (gear, actuator)?
A: Yes, customization is available. While standard is handwheel operation, we can provide gear operators for larger sizes or discuss the possibility of mounting pneumatic or electric actuators for remote control, subject to technical review.
Q: How does the CB/T3591 standard benefit me as an international buyer?
A: CB/T3591 is a respected Chinese marine standard. Compliance ensures the valve meets specific design, material, and testing criteria for marine use, providing assurance of quality and fitness for purpose, which is crucial for classification society approvals in many projects.
Q: What kind of warranty or after-sales support do you provide?
A: We provide a standard warranty against manufacturing defects. Our experienced technical team is available to provide after-sales support, including installation guidance and troubleshooting assistance.
Q: Are your products certified for use on ships by classification societies?
A: We can supply valves that meet the material and design requirements of major classification societies. Specific certification (e.g., ABS, DNV, LR) is typically obtained by the shipyard or buyer through testing and documentation review, which we can support with necessary factory documentation.