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Help CenterCB/T4303 Bronze Wafer Check Valve With On-Site Technical Support
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As a leading manufacturer with a strong commitment to quality and customer success, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our CB/T4303 Bronze Wafer Check Valve. Engineered for reliability and backed by our comprehensive on-site technical support, this valve is designed to prevent reverse flow and protect your critical piping systems in applications ranging from marine engineering to industrial plant utilities. With our ISO9001 certified manufacturing processes and a decade of expertise since our establishment in 2016, we deliver valves that combine robust performance with exceptional service, ensuring your operations run smoothly and efficiently.
Our CB/T4303 Bronze Wafer Check Valve is a compact and efficient solution for preventing backflow in pipeline systems. Its wafer-style design allows for easy installation between ANSI or DIN standard flanges, saving space and reducing weight compared to traditional flanged check valves. The valve body is constructed from high-grade bronze alloy (typically CAC406/C83600), offering excellent corrosion resistance against seawater, fresh water, oil, and steam. The internal disc swings on a hinge pin, automatically closing under spring-assisted action or reverse flow to provide a tight seal and protect upstream equipment like pumps and compressors.
Key Features & Technical Advantages:
- Robust Bronze Construction: Manufactured from premium bronze alloys, ensuring durability and long service life in corrosive and high-pressure environments.
- Compact Wafer Design: Saves valuable space and reduces overall system weight, making it ideal for installations with spatial constraints.
- Reliable Non-Return Function: The swing disc mechanism ensures quick, automatic closure to prevent reverse flow, safeguarding pumps and other equipment.
- Low Pressure Drop: The streamlined internal flow path minimizes turbulence and pressure loss, enhancing system efficiency.
- Versatile Sealing Options: Available with standard metal-to-metal seats for high-temperature applications or optional resilient seals (like EPDM or NBR) for bubble-tight shut-off in lower temperature services.
- Compliance with CB/T4303: Manufactured in strict accordance with the Chinese CB/T4303 standard for ship valves, ensuring compatibility and reliability for marine and industrial applications.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Product Standard | CB/T4303 |
| Body Material | Bronze (CAC406 / C83600 equivalent) |
| Disc & Hinge Pin Material | Bronze / Stainless Steel (optional) |
| Connection Type | Wafer (fits between flanges) |
| Nominal Pressure (PN) | PN16 (Class 150). Other ratings available upon request. |
| Size Range (DN) | DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200 |
| Size Range (Inch) | 1/2", 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3", 4", 5", 6", 8" |
| Seat Seal Type | Standard: Metal. Optional: EPDM, NBR, Viton. |
| Suitable Media | Water, Oil, Gas, Steam, Seawater, Non-aggressive Chemicals |
| Operating Temperature | -20°C to +200°C (varies with seal material) |
| Face-to-Face Dimensions | As per CB/T4303 standard for corresponding size |
Benefits for Your Business:
- Enhanced System Protection: Effectively prevents water hammer and protects expensive pumps and compressors from damage caused by backflow.
- Reduced Maintenance Costs: The durable bronze construction and reliable design lead to fewer failures and lower lifetime maintenance requirements.
- Simplified Installation & Inventory: The wafer design eliminates the need for separate flange kits and reduces bolt counts, speeding up installation and simplifying spare parts management.
- Global Compliance & Support: Backed by our ISO9001 certification, our valves meet international quality expectations. Combined with our on-site technical support, we ensure correct selection, installation, and troubleshooting anywhere our products are used.
Shanghai Zhibang Valve is not just a supplier; we are your partner in fluid control. With an annual export value ranging from US$1 Million to US$1.5 Million, we have proven our capability to serve a diverse global clientele across North America, South America, Europe, Asia, Africa, and Oceania. Our strategic location in Shanghai and multiple shipment ports (Shanghai, Guangzhou, Hong Kong, Beijing) enable efficient logistics to your doorstep. Choosing our CB/T4303 Bronze Wafer Check Valve means investing in a product backed by nearly a decade of manufacturing excellence, a rigorous quality system, and a commitment to providing direct, on-site technical assistance to maximize your project's success. Contact us today to discuss your specific requirements or to request a sample.
Frequently Asked Questions (FAQ):
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Q: What is the main advantage of a wafer-style check valve over a flanged type?
A: The wafer design is significantly more compact and lighter. It installs directly between two pipeline flanges, eliminating the need for the valve to have its own flanges. This saves space, reduces weight, lowers material costs, and often requires fewer bolts for installation. -
Q: Is this valve suitable for seawater applications?
A: Yes. The bronze alloy (CAC406/C83600) used in our valve body offers very good resistance to corrosion from seawater, making it a reliable choice for marine and offshore applications. -
Q: What does "CB/T4303" mean, and is it compatible with ANSI/DIN standards?
A: CB/T4303 is a Chinese national professional standard specifically for ship valves. Valves manufactured to this standard are designed to have face-to-face dimensions and pressure ratings that are generally compatible and interchangeable with similar valves made to international standards like ANSI B16.10 and DIN, especially when used with corresponding flange standards. -
Q: Do you offer different seat seal materials?
A: Absolutely. While the standard version features a metal seat for high-temperature durability, we can provide valves with soft seals like EPDM or NBR for applications requiring bubble-tight shut-off at lower temperatures. The specific material can be customized based on your media and temperature. -
Q: What is included in your "On-Site Technical Support"?
A: Our technical support can include assistance with valve selection for your specific application, guidance on proper installation procedures, on-site training for your maintenance staff, and troubleshooting support in case of operational issues. The scope is tailored to your project needs. -
Q: Can this valve be installed in any orientation?
A: For optimal performance, swing check valves are typically recommended for horizontal pipe runs. Installation in vertical lines with upward flow is possible, but it requires checking the specific spring force. We advise consulting our technical team for non-standard orientations. -
Q: What is your typical lead time for orders?
A: Lead times vary based on order quantity, size, and customization requirements. Standard sizes are often available from stock or have shorter production cycles. We provide accurate lead time estimates upon receipt of your detailed inquiry. -
Q: Do you provide documentation like test certificates?
A: Yes. As an ISO9001 certified manufacturer, we can provide standard documentation including material certificates and factory test reports (e.g., shell test, seat test) upon request.
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