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Help CenterCB/T467 Marine Gate Valve With Mill Test Report - Bronze Body Flanged Design DN150
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As a specialized manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve is proud to present our CB/T467 Marine Gate Valve. Engineered specifically for demanding marine environments, this DN150 bronze flanged gate valve is a reliable solution for shipbuilding, offshore platforms, and port facility applications. We combine robust construction with stringent testing, ensuring every valve meets the rigorous standards required for safe and efficient operation at sea.
This valve is designed to provide secure isolation in critical piping systems. Its construction and features directly address the common challenges faced in marine operations, such as corrosion, pressure fluctuations, and the need for dependable long-term performance with minimal maintenance.
Core Features & Technical Advantages:
- Bronze Body Construction: Manufactured from high-grade bronze casting, offering superior resistance to seawater corrosion and dezincification compared to standard brass, significantly extending service life in saline environments.
- Flanged Design (DN150): Features flanged ends conforming to relevant marine standards (e.g., JIS, DIN, ANSI), ensuring a secure, leak-proof connection that is easy to install, inspect, and maintain within shipboard piping networks.
- Full Bore Design: Provides minimal flow restriction and pressure drop when fully open, which is crucial for maintaining system efficiency in bilge, ballast, cooling, and general service lines.
- Metal-to-Metal Seating: Utilizes bronze seat rings for a tight seal. This design offers good wear resistance and reliable shut-off even after prolonged use, with the ability to be reconditioned if necessary.
- Rising Stem Design: The non-rotating rising stem provides clear visual indication of the valve position (open or closed), a critical safety feature for marine engineers.
- Robust Gland Packing: Equipped with durable, reinforced gland packing material suitable for marine temperatures and pressures, ensuring a reliable stem seal and preventing external leakage.
- Mill Test Report (MTR): Each valve is supplied with a comprehensive Mill Test Report. This document provides traceability and verification of the material's chemical composition and mechanical properties, offering quality assurance and simplifying compliance documentation for shipyards and classification societies.
Key Technical Specifications:
| Valve Type | Marine Gate Valve, Flanged Ends |
| Product Standard | CB/T467 (China Shipbuilding Standard) |
| Nominal Diameter | DN150 (6 Inches) |
| Body Material | Bronze (Casting) |
| Seat & Disc Material | Bronze |
| Stem Material | Bronze or Stainless Steel (Optional) |
| Connection Type | Flanged (Face-to-Face dimensions per standard) |
| Operation | Handwheel (Rising Stem) |
| Pressure Class | Standard Marine Class (e.g., PN10, PN16, Class 150) - Specify Required Rating |
| Test & Certification | Hydrostatic Shell & Seat Test, Mill Test Report Included |
| Suitable Media | Sea Water, Fresh Water, Lubricating Oil, Air, Non-corrosive Gases |
| Temperature Range | Standard Range for Bronze Valves (e.g., -20°C to +120°C) |
Benefits for Your Marine Project:
- Enhanced Corrosion Resistance: The bronze body directly tackles the primary threat in marine applications, reducing failure risk and maintenance frequency.
- Simplified Procurement & Compliance: Supplied with a Mill Test Report, this valve streamlines your material certification process, aiding in approvals from ship classification bodies like ABS, DNV, LR, BV, etc.
- Reliable Performance: The robust flanged design and metal seating ensure a secure, long-lasting seal under the vibration and dynamic loads typical of shipboard systems.
- Ease of Maintenance: The standardized flanged connection and accessible design allow for straightforward removal and servicing without specialized tools, minimizing vessel downtime.
- Cost-Effective Solution: Offers a balance of performance, durability, and value, providing a reliable component without the premium cost of more exotic alloys for standard marine services.
Frequently Asked Questions (FAQ):
Q1: What is the main advantage of a bronze body for a marine valve?
A1: Bronze offers significantly better corrosion resistance, particularly to seawater, compared to materials like cast iron or standard brass. It resists dezincification, a common failure mode in saline environments, leading to a longer and more reliable service life on ships and offshore structures.
Q2: Does the CB/T467 standard imply any specific pressure rating?
A2: The CB/T467 standard outlines the general requirements and dimensions for marine valves. The specific pressure rating (e.g., PN10, PN16, Class 150) is a separate designation. It is essential to confirm the required pressure class for your application when placing an order.
Q3: What details are included in the Mill Test Report (MTR)?
A3: The MTR typically includes the heat or batch number, chemical composition analysis (percentages of copper, tin, zinc, etc.), mechanical property test results (tensile strength, yield strength, elongation), and the results of non-destructive tests if performed. It serves as a material certificate.
Q4: Can this valve be used for fuel oil or chemical services?
A4: This bronze gate valve is suitable for lubricating oils, seawater, freshwater, and air. For dedicated fuel oil lines or specific aggressive chemicals, the compatibility of bronze with the media must be verified. Alternative material options may be available upon request.
Q5: Are the flanges drilled to a specific standard (JIS, ANSI, DIN)?
A5: The flange drilling standard is a critical specification. We can supply valves with flanges drilled to various international standards such as JIS, ANSI, DIN, or GB. Please specify your required flange standard and facing type (RF, FF) at the time of inquiry.
Q6: Is the handwheel made of bronze or another material?
A6: The handwheel is typically manufactured from cast iron or steel with a corrosion-resistant coating (e.g., galvanized) for durability and grip. Bronze handwheels are also available as an option for a fully non-magnetic assembly.
Q7: Do you offer other sizes besides DN150?
A7: Yes. As a manufacturer, we produce marine gate valves in a range of sizes, commonly from DN50 (2") up to DN300 (12") or larger. Other sizes can be sourced based on your project requirements.
Q8: What is the typical lead time for an order of these valves?
A8: Lead time depends on order quantity and specific configuration. For standard DN150 bronze gate valves, we often maintain some stock or can produce within a reasonable timeframe. We provide accurate lead time estimates with every quotation.
Backed by our ISO9001 certification and years of experience supplying to global marine markets across North America, Europe, Asia, and beyond, Shanghai Zhibang Valve stands as a dependable partner. Our annual export volume demonstrates our capacity and reliability in meeting international client needs. We ship from major ports like Shanghai and Guangzhou for efficient logistics. Choose our CB/T467 Marine Gate Valve for a combination of proven marine-grade materials, essential certification documentation, and manufacturer-direct quality. Contact us today to discuss your specifications, request a detailed quote, or learn more about our full range of marine valve solutions.
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