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For Ship Compressed Air Lines: CB/T4303 Marine Check Valve With DN100 Flange
Product Spotlights
CB/T4303 compliant marine check valve for ship compressed air lines. Features a robust DN100 flanged connection, durable cast steel construction, and customizable materials (seat/disc) for harsh marine environments. Prevents backflow to protect critical pneumatic systems, reduces maintenance costs, and ensures safe operation. ISO9001 certified manufacturer with global export experience.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, Compressed Air Lines on Ships
Product Type:
Marine Check Valve
Valve Body Material:
Cast Steel / Ductile Iron / Optional
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Compressed Air Lines on Ships
Product Type
Marine Check Valve
Valve Body Material
Cast Steel / Ductile Iron / Optional
Flange Standard
DN100 Flange
Seat Material
NBR / EPDM / Optional
Pressure Rating
PN10 / PN16 / PN25
Connection Type
Flanged
Product Standard
CB/T 4303
Disc Material
Cast Steel / Optional
Optional Features
Lockable Handle / Indicator / Available upon request
As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing high-performance and reliable fluid control solutions for the marine industry. Our CB/T4303 Marine Check Valve with DN100 Flange is engineered specifically for compressed air lines on ships, ensuring safe and efficient one-way flow to protect critical onboard systems. With extensive experience exporting to global markets, we understand the stringent demands of marine applications and deliver valves that meet rigorous standards for durability and performance.
This marine check valve is a crucial component designed to prevent the backflow of compressed air, which could damage compressors, air receivers, and downstream pneumatic equipment. Its robust construction and adherence to the CB/T 4303 standard make it a trusted choice for shipbuilders, shipyards, and vessel operators worldwide.
Key Features and Technical Advantages:
- Robust Construction for Marine Environment: The valve body is typically manufactured from high-grade cast steel or ductile iron, offering excellent resistance to corrosion and mechanical stress. This ensures long-term reliability in the harsh, salt-laden atmosphere of marine operations.
- Precise Flow Control: The valve features a spring-assisted or swing-type disc mechanism that ensures swift and positive closure upon flow reversal, minimizing pressure drop and preventing water hammer effects in the compressed air system.
- Standard Compliance: Manufactured in accordance with the Chinese CB/T 4303 standard for marine valves, it meets specific requirements for design, materials, and testing relevant to shipboard use.
- DN100 Flanged Connection: The standardized DN100 (approximately 4-inch) flanged ends facilitate easy and secure installation into existing shipboard piping systems, ensuring a leak-proof connection.
- Customizable Options: We understand that specific projects may have unique needs. Therefore, materials for the seat (such as NBR or EPDM) and disc can be customized upon request. Optional features like a lockable handle or position indicator are also available.
Detailed Technical Specifications:
| Parameter | Specification |
| Product Standard | CB/T 4303 |
| Nominal Diameter (DN) | 100 |
| Connection Type | Flanged (RF face common) |
| Pressure Rating | Commonly PN10, PN16, PN25 (Customizable) |
| Valve Body Material | Cast Steel WCB, Ductile Iron, etc. (Optional) |
| Disc Material | Cast Steel, Stainless Steel (Optional) |
| Seat Material | NBR, EPDM, PTFE (Optional) |
| Suitable Medium | Compressed Air, Inert Gases |
| Operating Temperature | Depends on seat material (e.g., -20°C to 80°C for NBR) |
| Application | Ship Compressed Air Lines, Marine Pneumatic Systems |
Benefits for Our Clients:
- Enhanced System Safety: Effectively prevents dangerous backflow, protecting expensive air compressors and ensuring the stable operation of pneumatic tools and control systems onboard.
- Reduced Maintenance Costs: The durable design and corrosion-resistant materials minimize wear and tear, leading to lower lifetime maintenance requirements and operational costs.
- Global Compliance and Compatibility: Adherence to recognized standards ensures the valve is suitable for integration into ships destined for various international markets, including North America, Europe, Southeast Asia, and beyond.
- Reliable Supply Chain: With annual export values between US$1-1.5 million and major shipment ports like Shanghai, Guangzhou, and Hong Kong, we guarantee consistent product availability and timely delivery to support your project schedules.
Our commitment to quality is underpinned by our ISO9001 certification, which governs our entire manufacturing process from material sourcing to final inspection. This valve is a product of that rigorous system. With a proven track record of supplying to diverse regions including Eastern Europe, Oceania, Africa, and the Middle East, Shanghai Zhibang has built a reputation for reliability. Choosing our CB/T4303 Marine Check Valve means investing in a component that delivers performance, durability, and peace of mind for your marine compressed air applications. Contact us today to discuss your specific requirements or to request a quotation.
Frequently Asked Questions (FAQ):
-
Q: What is the primary function of this check valve in a ship's compressed air system?
A: Its primary function is to allow compressed air to flow in one direction only and automatically prevent backflow. This protects upstream equipment like air compressors and receivers from potential damage caused by reverse pressure. -
Q: Is this valve suitable for media other than compressed air?
A: While designed for compressed air lines, it can potentially handle other compatible inert gases. However, the seat material must be confirmed for compatibility with the specific medium, temperature, and pressure. Please consult with our engineers for non-standard applications. -
Q: Can you provide valves with pressure ratings other than PN16?
A> Yes. While PN16 is common, we can manufacture this check valve to other pressure ratings such as PN10 or PN25 based on your system design requirements. This is a customizable parameter. -
Q: What are the standard flange face and drilling dimensions for the DN100 flange?
A: The valve typically comes with Raised Face (RF) flanges. The specific drilling standard (e.g., DIN, ANSI, JIS) and dimensions can be specified at the time of order to ensure compatibility with your existing pipeline flanges. -
Q: Does the valve require regular maintenance?
A: Designed for reliability, it generally requires minimal maintenance. Periodic visual inspection for leaks and external corrosion is recommended as part of routine shipboard maintenance schedules. The internal components are durable under normal operating conditions. -
Q: Are the materials resistant to seawater corrosion?
A> The standard cast steel body offers good corrosion resistance. For applications in highly corrosive environments, we can discuss alternative materials like higher-grade stainless steels upon request to enhance longevity. -
Q: What is the lead time for an order of these valves?
A: Lead time depends on order quantity and any customization requirements. For standard specifications, we typically maintain stock or offer competitive production schedules. Please contact our sales team for an accurate delivery estimate. -
Q: Do you offer technical support or installation guidance?
A> Absolutely. As a manufacturer, we provide comprehensive technical data sheets and are available to offer support regarding installation, operation, and material selection to ensure optimal valve performance in your system.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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