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Help CenterCB/T467 Bronze Gate Valve Flanged for Shipboard Seawater Ballast and Firefighting System Pipelines
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As a professional manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance marine valves. Our CB/T467 Bronze Gate Valve is engineered specifically for the demanding environments of shipboard seawater ballast and firefighting system pipelines. Built to meet stringent marine standards, this valve offers reliable flow control, exceptional corrosion resistance against seawater, and durable construction for long-term service in critical onboard systems. With years of experience exporting to global markets, we provide valves that combine technical precision with practical reliability for shipbuilders and marine engineers worldwide.
This flanged bronze gate valve is designed according to the Chinese Ship Standard CB/T467, making it a suitable choice for various marine and offshore applications where seawater handling is paramount. Its robust construction ensures secure isolation in pipelines, contributing to vessel safety and operational efficiency.
Key Features & Technical Advantages:
- Superior Material: Manufactured from high-grade tin bronze (C83600 or equivalent), offering excellent resistance to seawater corrosion, dezincification, and cavitation erosion. This material is preferred in marine environments for its proven longevity.
- Flanged Design for Secure Connection: Features flanged ends compliant with international standards such as ISO, ANSI, or DIN, ensuring a leak-proof, bolted connection that is easy to install, maintain, and inspect within pipeline systems.
- Rising Stem Design: The outside screw and yoke (OS&Y) or rising stem design provides a clear visual indication of the valve position (open or closed), enhancing operational safety and preventing accidental mishandling.
- Bidirectional Sealing: The valve provides effective sealing in both flow directions, ensuring reliable isolation regardless of installation orientation in the ballast or firefighting line.
- Full Bore Design: Minimizes pressure drop across the valve when fully open, allowing for efficient fluid transfer with minimal flow restriction, which is crucial for ballast operations and firefighting water supply.
- Robust Construction: The valve body, bonnet, gate, and stem are designed to withstand system pressures, hydraulic shocks, and the mechanical stresses common in marine piping.
- Standardized Dimensions: Manufactured to CB/T467 specifications, ensuring interchangeability and compatibility with other standardized marine piping components.
Technical Specifications:
| Parameter | Specification |
|---|---|
| Product Standard | CB/T467 (China Ship Standard) |
| Valve Type | Flanged Gate Valve, Rising Stem |
| Body Material | Bronze (Tin Bronze Alloy) |
| Seat Material | Bronze / Integral with Body |
| Stem Material | Bronze or Stainless Steel (optional) |
| Nominal Diameter (DN) | Commonly available from DN15 to DN300 (Customizable) |
| Nominal Pressure (PN) | PN10, PN16 (150 LB equivalent) |
| Temperature Range | -20°C to 120°C |
| Applicable Medium | Seawater, Fresh Water, Non-aggressive liquids |
| Operation | Manual Handwheel |
| End Connection | Flanged (Face-to-face dimensions per CB/T467) |
| Flange Standard | ISO, ANSI, DIN, JIS (Available upon request) |
| Surface Treatment | Natural Bronze Finish or Protective Coating (optional) |
Application Benefits for Clients:
- Enhanced System Reliability: The valve's corrosion-resistant bronze construction reduces failure risks in seawater systems, minimizing unscheduled maintenance and downtime for vessels.
- Compliance with Marine Standards: Designed and manufactured to CB/T467, it helps shipyards and operators meet relevant classification society requirements for ballast and firefighting systems.
- Ease of Installation & Maintenance: The flanged design allows for straightforward installation into existing or new pipelines. The rising stem facilitates easy status checks and maintenance.
- Long Service Life: The choice of marine-grade bronze ensures durability against harsh seawater, providing a cost-effective solution through extended service intervals.
- Global Supply Capability: Supported by our established export channels from major Chinese ports like Shanghai, Guangzhou, and Hong Kong, we ensure timely delivery to shipbuilding hubs worldwide, including North America, Europe, Southeast Asia, and the Middle East.
Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, has built a strong reputation through consistent quality and reliable service. With an annual export value ranging between US$1 Million and US$1.5 Million, our products have been successfully supplied to diverse markets across North and South America, Europe, Asia, Africa, and Oceania. Our ISO9001 certified manufacturing process ensures every CB/T467 Bronze Gate Valve undergoes rigorous quality checks, from material selection to final testing. This commitment to quality, combined with our extensive experience in serving the global marine industry, provides you with a trustworthy partner for your critical valve requirements. Choose our valve for a balance of performance, durability, and value in your shipboard seawater and fire protection systems.
Frequently Asked Questions (FAQ):
Q1: Is this bronze gate valve suitable for seawater applications?
A1: Yes, absolutely. It is specifically designed and manufactured from tin bronze, an alloy renowned for its excellent corrosion resistance in seawater, making it ideal for ballast and seawater firefighting systems.
Q2: What does "CB/T467" mean in the product title?
A2: CB/T467 is a Chinese national standard ("CB" stands for "Chuan Bo," meaning ship) that specifies the technical requirements, dimensions, and testing methods for marine bronze gate valves. Valves made to this standard are recognized for marine use.
Q3: Can I get flanges matching ANSI or DIN standards instead of ISO?
A3: Yes, customization is available. While produced to CB/T467 dimensions, we can often supply valves with flange drilling and facing to match ANSI B16.5, DIN, JIS, or other international standards upon request. Please specify your requirement during inquiry.
Q4: What is the main advantage of a rising stem (OS&Y) design?
A4: The rising stem provides a clear, visual indication of whether the valve is open or closed based on the stem's position. This enhances operational safety, especially in emergency situations like firefighting, by preventing confusion.
Q5: What pressure ratings are available for this valve?
A5: This valve is typically available in PN10 (10 bar) and PN16 (16 bar) pressure classes, which correspond to common working pressures in shipboard seawater and firefighting systems. Other pressure ratings may be customizable.
Q6: Do you provide any certifications or test reports with the valves?
A6: As an ISO9001 certified manufacturer, we conduct routine tests (such as shell tests and seat tests) during production. Standard test certificates can be provided. Specific classification society certifications (like ABS, BV, DNV) can be arranged subject to client requirements and order volume.
Q7: What is the typical delivery time for a standard order?
A7: Delivery time depends on the order quantity and specifications. For standard sizes and materials, we generally maintain stock for faster shipment. An estimated lead time will be provided with your formal quotation.
Q8: Can this valve be used for other fluids besides seawater?
A8: While optimized for seawater, this bronze gate valve is also suitable for other non-aggressive liquids like fresh water, lubricating oils, and air within its specified temperature and pressure limits. Please consult us for specific media compatibility.
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