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As a professional manufacturer with a strong focus on marine fluid control solutions, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our premium Bronze Marine Gate Valve. Engineered to meet the rigorous demands of shipboard and offshore applications, this valve combines the inherent corrosion resistance of bronze with robust construction and precise manufacturing under our ISO9001-certified quality system. We understand that reliability is non-negotiable in marine environments, which is why every valve is supplied with a comprehensive Mill Test Report, providing full traceability and peace of mind. Our commitment to the CB/T467-1995 standard ensures seamless integration into your marine piping systems, offering a dependable shut-off solution for seawater, ballast, cooling, and other critical shipboard services.
Our Bronze Marine Gate Valve is designed for durability and long service life in harsh saltwater conditions. The choice of high-grade bronze alloy provides excellent resistance to seawater corrosion and dezincification, a critical factor for marine components. The valve features a robust body, a precision-machined gate and seat for bubble-tight shut-off, and a sturdy stem with a back-seating feature that allows for packing replacement under pressure. The ergonomic handwheel ensures smooth and reliable operation, even after prolonged periods of inactivity. We offer a wide range of sizes and pressure ratings to suit various system requirements.
Key Technical Features & Specifications:
- Superior Corrosion Resistance: Manufactured from premium bronze alloy (typically C95800), offering outstanding performance against seawater, brackish water, and marine atmospheres.
- Robust Construction: Features a heavy-duty body and bonnet design capable of withstanding vibration, shock, and high pressures common in marine applications.
- Bubble-Tight Shut-off: Precision-machined gate and seat surfaces ensure a reliable, leak-proof seal when fully closed, preventing unwanted flow and ensuring system integrity.
- Easy Operation & Maintenance: The handwheel-operated design provides straightforward on/off control. The back-seating stem design allows for safe packing gland adjustment or replacement while the valve is in service.
- Full Compliance: Manufactured in strict accordance with the Chinese marine standard CB/T467-1995, guaranteeing dimensional compatibility and performance suitable for shipbuilding and repair.
- Documentation & Traceability: Each valve is accompanied by a Mill Test Report (MTR), detailing material chemical composition, mechanical properties, and non-destructive test results, ensuring full quality assurance.
Detailed Specifications Table:
| Parameter | Specification / Value |
| Body & Bonnet Material | Bronze Alloy (C95800 or equivalent) |
| Gate & Seat Material | Bronze / Bronze (or optional enhanced trim) |
| Stem Material | Bronze or Stainless Steel |
| Size Range (Nominal Diameter) | DN15 (1/2") to DN300 (12") |
| Pressure Rating (PN) | PN10, PN16, PN25 (Common) |
| Pressure Rating (Class) | Class 150, Class 300 |
| Temperature Range | -20°C to 200°C (-4°F to 392°F) |
| Connection Standard | Flanged as per CB/T467-1995, JIS, DIN, ANSI (Optional) |
| Operation | Manual Handwheel |
| Packing | Graphite or PTFE-based for reliable sealing |
Benefits for Our Clients:
- Enhanced System Reliability: Reduces the risk of in-service failures, leaks, and costly downtime in critical marine systems.
- Long-Term Cost Savings: The corrosion-resistant bronze construction minimizes maintenance needs and extends replacement intervals, lowering total cost of ownership.
- Simplified Procurement & Installation: Compliance with the CB/T467-1995 standard ensures compatibility with existing marine piping designs, speeding up installation and reducing engineering effort.
- Quality Assurance: The included Mill Test Report provides documented proof of material quality and manufacturing integrity, essential for shipyard audits and classification society requirements.
- Global Supply Chain Support: With annual export values between US$1-1.5 million and shipments from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we reliably serve a global clientele across North and South America, Europe, Asia, Africa, and Oceania.
Trust in the expertise of Shanghai Zhibang Valve, a manufacturer established in 2016 and steadily growing its global footprint. Our ISO9001 certification underpins our commitment to consistent quality in every valve we produce. The combination of material excellence, standard compliance, and full traceability makes this Bronze Marine Gate Valve a prudent and reliable choice for shipbuilders, repair yards, and marine equipment suppliers worldwide. For detailed quotations, specific size and pressure requirements, or to discuss custom configurations, please contact our sales team. Let us provide you with a valve solution that stands up to the challenge of the sea.
Frequently Asked Questions (FAQ):
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Q: What is the significance of the CB/T467-1995 standard for this valve?
A: CB/T467-1995 is a Chinese national standard specifically for marine bronze gate valves. It defines critical dimensions, material requirements, pressure-temperature ratings, and testing procedures. Compliance ensures the valve is suitable and interchangeable within marine piping systems built to this specification. -
Q: Why is a Mill Test Report (MTR) important, and what does it include?
A: An MTR is a certificate from the material mill that verifies the chemical composition and mechanical properties (like tensile strength, yield strength) of the bronze used. It provides traceability and proof that the raw material meets the specified grade, which is a common requirement in marine and industrial projects for quality assurance. -
Q: Can this valve be used for applications other than seawater?
A: Yes. While optimized for marine service, the corrosion resistance of bronze makes this valve suitable for other non-critical services involving fresh water, oil, air, and certain chemicals within its specified temperature and pressure limits. Please consult us for specific media compatibility. -
Q: What are the available connection types?
A: The standard connection is flanged as per the CB/T467-1995 standard. However, we can also provide valves with threaded (NPT, BSP) connections or flanges matching other standards like JIS, DIN, or ANSI upon request to suit your specific piping layout. -
Q: How does the bronze alloy resist corrosion in seawater?
A: The specific bronze alloy used (e.g., C95800, a nickel-aluminum bronze) forms a stable, protective oxide layer on its surface. This layer adheres strongly and effectively resists the corrosive attack from saltwater, including resistance to dezincification, a common failure mode for some brasses. -
Q: Is the valve suitable for both above-deck and below-deck installations?
A> Absolutely. The robust construction and corrosion-resistant materials make it suitable for various marine environments. For exposed deck installations, the bronze offers good weathering resistance. For submerged or bilge applications, its sealing integrity and material properties are fully applicable. -
Q: Do you offer actuated versions of this gate valve?
A: Our standard offering is manual handwheel operation. However, we can provide customization options, including the attachment of electric, pneumatic, or hydraulic actuators for remote or automated control systems. This would be a special order subject to specific requirements. -
Q: What is your typical lead time for orders?
A: Lead times vary based on order quantity and specific requirements (size, pressure rating, connection type). For standard sizes and configurations, we generally maintain stock for faster delivery. Please contact us with your needs for an accurate production and delivery schedule.
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