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Home > Industrial Equipment & Components > Valve > Gate Valve > Ballast Water System Gate Valve, Marine Grade, GB/T Standard, Full Bore Design, DN80-DN250 Sizes Available

Ballast Water System Gate Valve, Marine Grade, GB/T Standard, Full Bore Design, DN80-DN250 Sizes Available

Ballast Water System Gate Valve, Marine Grade, GB/T Standard, Full Bore Design, DN80-DN250 Sizes Available thumbnail-3

Ballast Water System Gate Valve, Marine Grade, GB/T Standard, Full Bore Design, DN80-DN250 Sizes Available thumbnail-4

Ballast Water System Gate Valve, Marine Grade, GB/T Standard, Full Bore Design, DN80-DN250 Sizes Available thumbnail-5

Ballast Water System Gate Valve, Marine Grade, GB/T Standard, Full Bore Design, DN80-DN250 Sizes Available photo-1

Ballast Water System Gate Valve, Marine Grade, GB/T Standard, Full Bore Design, DN80-DN250 Sizes Available photo-2

Ballast Water System Gate Valve, Marine Grade, GB/T Standard, Full Bore Design, DN80-DN250 Sizes Available photo-3

Ballast Water System Gate Valve, Marine Grade, GB/T Standard, Full Bore Design, DN80-DN250 Sizes Available photo-4

Ballast Water System Gate Valve, Marine Grade, GB/T Standard, Full Bore Design, DN80-DN250 Sizes Available photo-5

Product Spotlights

Engineered for marine ballast water systems, this gate valve features a full bore design for maximum flow efficiency and minimal pressure drop. Manufactured to GB/T standards from corrosion-resistant marine-grade materials, it ensures reliable sealing and durability in seawater applications. Available in sizes DN80 to DN250 with flanged connections, it supports global maritime operations with ISO9001-certified quality and flexible logistics from major Chinese ports.

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

Key Specifications

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Material:

Other, Marine-grade materials (e.g., cast steel, bronze)

Standard:

Other, GB/T Standard

Application:

Other, Ballast water management systems

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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, Marine-grade materials (e.g., cast steel, bronze)

Standard Other, GB/T Standard

Application Other, Ballast water management systems

Size Range DN80, DN100, DN125, DN150, DN200, DN250

Design Full bore design

Connection Type Flanged end (standard)

Operation Type Manual handwheel or gear operator

Pressure Rating Standard marine pressure ratings (e.g., PN16, PN25)

Seat Type Metal seated or resilient seated (optional)

Brand Shanghai Zhibang Valve

As a leading manufacturer with ISO9001 certified quality management since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable fluid control solutions for the global maritime industry. Our Ballast Water System Gate Valve is engineered to meet the rigorous demands of modern marine operations, offering dependable performance in critical ballast water management systems. Designed and manufactured to GB/T standards, this valve ensures compatibility and reliability for vessels navigating international waters. With an annual export value reflecting our global reach, we deliver products that shipbuilders, shipyards, and fleet operators trust for essential applications.

This marine-grade gate valve is a cornerstone for safe and efficient ballast water handling. Its full bore design minimizes pressure drop and allows for unobstructed flow, which is crucial for the rapid transfer of large volumes of water during ballasting and de-ballasting operations. Constructed from corrosion-resistant materials suitable for seawater service, it is built to withstand the harsh marine environment. The valve is available in a comprehensive size range from DN80 to DN250, providing flexibility for various system layouts and pipe diameters onboard.

Key Features & Technical Advantages:

Superior Flow Efficiency: The full port (full bore) design ensures a flow area nearly equal to the pipeline's inner diameter, reducing turbulence and head loss. This design is particularly beneficial for ballast systems where pump efficiency and filling/emptying times are critical.
Enhanced Durability: Manufactured with marine-grade materials such as cast steel with appropriate coatings or bronze alloys, the valve offers excellent resistance to corrosion from seawater, extending service life and reducing maintenance frequency.
Reliable Sealing & Operation: Features a robust gate and seat arrangement designed to provide a tight seal in both the fully open and fully closed positions. The stem is engineered for smooth operation, even under high differential pressures.
Standard Compliance: Adherence to GB/T standards guarantees dimensional interchangeability, material quality, and performance benchmarks that are recognized and trusted in shipbuilding and marine engineering, particularly within key markets.
Versatile Configuration: Available with different operator options (standard handwheel or gear operator for larger sizes/higher torque) and seat types (metal or resilient) to suit specific system pressure, temperature, and fluid compatibility requirements.
Easy Installation & Maintenance: The flanged connection design facilitates straightforward installation into existing piping networks. The valve's construction also allows for potential in-line maintenance, minimizing downtime.

Detailed Technical Specifications:

Parameter	Specification / Description
Product Type	Marine Gate Valve for Ballast Water Systems
Size Range (Nominal Diameter)	DN80, DN100, DN125, DN150, DN200, DN250
Design Standard	GB/T Standard Series
Bore Type	Full Bore (Full Port)
Connection End	Flanged (RF face common), dimensions per GB/T standard
Pressure Class	PN16, PN25, PN40 (available upon request)
Body Material	Cast Steel (WCB), Bronze (C95800), or other marine-grade alloys
Seat & Gate Material	Stainless Steel, Bronze, or Ni-Al Bronze; Resilient seat optional
Stem Material	Stainless Steel (common)
Operation	Rising Stem, Non-rising Handwheel (standard); Gear Operator for DN200+
Packing	Graphite-based or PTFE-based for reliable stem sealing
Paint/Coating	Marine-grade epoxy coating or hot-dip galvanizing per specification

Benefits for Your Operations:

System Reliability: Ensures uninterrupted ballast water operations, a critical function for vessel stability and safety.
Operational Cost Savings: The efficient flow design reduces pump energy consumption. The durable construction lowers lifetime costs through reduced replacement needs and maintenance.
Regulatory Compliance Support: A reliable valve is a key component in ballast water management systems that must meet international environmental regulations (e.g., IMO Ballast Water Management Convention).
Global Supply Chain Compatibility: Supplied from multiple major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring flexible and timely logistics to meet project schedules worldwide.
Manufacturer Direct Value: Dealing directly with our ISO9001-certified factory allows for competitive pricing, quality control transparency, and support for custom requirements.

Our commitment to quality is underscored by our ISO9001 certification and proven track record of exporting to a diverse range of markets including North America, Europe, Asia, Africa, and Oceania. With an annual export volume demonstrating consistent global demand, Shanghai Zhibang Valve has established itself as a reliable partner for marine valve needs. This Ballast Water System Gate Valve embodies our dedication to engineering products that deliver long-term performance under challenging conditions. We invite shipowners, naval architects, and marine equipment distributors to request a detailed quotation or technical datasheet to see how this valve can enhance the reliability and efficiency of your ballast water systems.

Frequently Asked Questions (FAQ)

Q: What is the main advantage of a full bore design in a ballast water valve?
A: The full bore design provides a flow path with minimal restriction, which is essential for ballast systems. It allows for faster filling and emptying of ballast tanks, reduces pressure loss across the valve (saving pump energy), and minimizes turbulence that can cause erosion or noise.
Q: Are these valves suitable for use with seawater?
A: Yes, absolutely. They are specifically classified as "marine grade," meaning they are constructed from materials like bronze, nickel-aluminum bronze, or coated cast steel that offer high corrosion resistance in seawater environments, ensuring a long service life.
Q: What does compliance with GB/T Standard mean for international buyers?
A: GB/T is the Chinese national standard system. Compliance ensures the valve meets specific material, dimensional, and testing criteria. For international projects, it confirms a level of quality and often ensures dimensional compatibility with other piping components. Many shipyards and marine projects globally accept and specify valves to these recognized standards.
Q: Can I get valves in sizes outside the DN80-DN250 range?
A: The listed range covers the most common sizes for ballast system applications. However, as a manufacturer, we can often accommodate requests for smaller or larger sizes. Please contact our sales team with your specific size requirement for feasibility and lead time.
Q: What type of operator is recommended for the larger sizes (e.g., DN200, DN250)?
A: For sizes DN200 and above, we generally recommend or supply the valve with a gear operator. This mechanism provides the mechanical advantage needed to open and close the valve against high system pressures with manageable effort, enhancing safety and ease of use.
Q: Do you offer different pressure ratings (PN classes)?
A: Yes. While PN16 and PN25 are common for many ballast applications, we can provide valves rated for PN40 or other classes based on your system's design pressure. Please specify your required pressure class when inquiring.
Q: What is the typical lead time for an order of these valves?
A: Lead time depends on the specific size, material, quantity, and configuration ordered. Standard configurations in common sizes often have shorter lead times. We provide accurate lead time estimates with every formal quotation to help you plan your project schedule.
Q: What documentation is provided with the valves?
A: Standard documentation includes a Material Test Certificate (MTC) or Certificate of Conformity, product drawings, and a manual. Additional certifications, such as specific third-party inspection reports, can be arranged upon request.