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CBT4303 Check Valve Compliant With CB/T4303 Shipbuilding Standard

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Product Spotlights

A marine-grade check valve strictly compliant with the CB/T4303 shipbuilding standard. Designed for ship piping systems, it prevents harmful backflow to protect equipment. Offers durable construction from materials like cast steel or stainless steel, various sizes (DN15-DN600), and connection types. Enhances system safety, operational efficiency, and provides long-term reliability. Customizable options available to meet specific project needs.
Negotiable MOQ: 10 Units (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Cast steel or stainless steel
Application:
Other, Ship piping systems
Function:
Other, Prevents reverse flow
Payment & Shipping
Payment Methods:
Port of Shipment:
shanghai
Delivery Detail:
7 days
Material Other, Cast steel or stainless steel
Application Other, Ship piping systems
Function Other, Prevents reverse flow
Size Range DN15 to DN600 (or custom)
Connection Type Flanged, threaded, or welded
Pressure Rating PN10 to PN40 (or higher)
Standard Compliance CB/T4303 Shipbuilding Standard
Model CBT4303 Series

As a professional manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-quality valves for global marine and industrial applications. Our CBT4303 Check Valve, compliant with the CB/T4303 shipbuilding standard, is engineered to meet the rigorous demands of ship piping systems. This valve ensures reliable one-way flow control, protecting critical onboard equipment from backflow damage and enhancing overall system safety and efficiency. With an annual export value reaching US$1.5 million and certifications like ISO9001 underscoring our commitment to quality, we deliver products trusted across North America, Southeast Asia, Europe, and other major markets.

Key Features and Technical Advantages:

  • Standard Compliance: Designed and manufactured strictly according to the CB/T4303 shipbuilding standard, ensuring compatibility and reliability in marine environments.
  • Robust Construction: Typically made from durable materials such as cast steel or stainless steel, offering excellent corrosion resistance and longevity in seawater applications.
  • Effective Flow Prevention: Utilizes a swing or lift check mechanism to automatically block reverse flow, safeguarding pumps, compressors, and other connected equipment.
  • Versatile Configuration: Available in various connection types (flanged, threaded, welded) and pressure ratings to suit different pipeline layouts and system requirements.
  • Customizable Options: Sizes, materials, and specific design features can be tailored upon request to match unique project specifications.

Detailed Technical Specifications: The following table outlines common parameters for the CBT4303 Check Valve series. Specific values may vary based on customer requirements.

Parameter Typical Range / Description
Nominal Diameter (DN) DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600 (Custom sizes available)
Pressure Rating (PN) PN10, PN16, PN25, PN40 (Higher ratings customizable)
Main Body Material Cast Steel (WCB), Stainless Steel (304, 316), Duplex Steel (Optional)
Connection Standard Flanged (ASME, DIN, JIS), Threaded (NPT, BSP), Welded End
Sealing Mechanism Metal-to-metal seal or soft seal (e.g., rubber) depending on model
Operating Temperature -20°C to +200°C (Extended range available for special materials)
Applicable Medium Water, seawater, oil, air, and other non-aggressive fluids in ship systems

Benefits for Our Clients:

  • Enhanced System Safety: Prevents dangerous backflow scenarios, reducing risks of equipment failure and operational hazards.
  • Improved Operational Efficiency: Maintains consistent forward flow, optimizing the performance of pumps and fluid systems.
  • Long-Term Cost Savings: Durable construction minimizes maintenance needs and replacement frequency, lowering lifecycle costs.
  • Global Compliance Assurance: Adherence to CB/T4303 facilitates smooth integration into shipbuilding projects worldwide, meeting regional and international specifications.
  • Supply Chain Reliability: With multiple shipment ports (Shanghai, Guangzhou, Hongkong, Beijing) and a focus on exports, we ensure timely delivery to your location.

Shanghai Zhibang Valve's commitment to quality is validated by our ISO9001 certification and successful export history, supplying products to diverse markets including North America, Eastern Europe, Southeast Asia, Africa, and Oceania. Our CBT4303 Check Valve embodies this reliability, offering a solution that combines standard compliance, robust engineering, and practical benefits for shipbuilders and marine engineers. By choosing our valve, you invest in a component that protects your systems, streamlines operations, and supports your project's success. Contact us today to discuss your requirements or request a customized quotation.

Frequently Asked Questions (FAQ):

  1. What is the primary function of the CBT4303 Check Valve?
    It is designed to allow fluid flow in one direction only and automatically close to prevent reverse flow (backflow), which is critical for protecting pumps and other equipment in ship piping systems.
  2. Does this valve only apply to shipbuilding?
    While it is specifically compliant with the CB/T4303 shipbuilding standard, its robust design and materials also make it suitable for other marine engineering applications and certain industrial piping systems requiring similar performance.
  3. What materials are commonly used for this valve?
    The main body is typically manufactured from cast steel (like WCB) or stainless steel (304/316) to ensure strength and corrosion resistance in marine environments. Other materials are available upon request.
  4. Can I get a valve in a size not listed in your standard range?
    Yes. We offer customization services. You can request specific nominal diameters, pressure ratings, or connection types tailored to your project's pipeline design.
  5. How does the valve's compliance with CB/T4303 benefit my project?
    It ensures the valve meets specific design, material, and testing requirements for ship use, facilitating regulatory acceptance and integration into standard shipbuilding plans, reducing compatibility issues.
  6. What is the typical pressure rating available?
    Standard pressure ratings include PN10, PN16, PN25, and PN40. Higher pressure classes can be engineered based on your system's requirements.
  7. Are there different connection types available?
    Yes. The valve can be supplied with flanged ends (following ASME, DIN, or JIS standards), threaded ends (NPT or BSP), or welded ends to match your existing pipeline connections.
  8. What is your company's experience in exporting these valves?
    Established in 2016, we have an annual export value of up to US$1.5 million and serve markets globally, including North America, Southeast Asia, Europe, and Africa, demonstrating extensive experience in international supply and logistics.
Product Tags: CB/T4303 Check Valve , Shipbuilding Check Valve , Marine Check Valve

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Gold Verified Supplier
1Yr
Verified Business License
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001