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CB/T4303 Marine Check Valve With Full Technical Documentation and Mill Test Report Provided
Product Spotlights
CB/T4303 Marine Check Valve designed for reliable backflow prevention in maritime systems. Features robust construction with material options like cast steel and stainless steel for corrosion resistance. Provided with full technical documentation and mill test reports for complete traceability and compliance. Suitable for a wide range of pressures (PN10-Class300) and sizes (DN15-DN600).
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Standard:
CB/T4303
Material:
Cast Steel, Ductile Iron, Stainless Steel (optional)
Connection Type:
Flanged, Threaded
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Standard
CB/T4303
Material
Cast Steel, Ductile Iron, Stainless Steel (optional)
Connection Type
Flanged, Threaded
Pressure Rating
PN10, PN16, PN25, Class150, Class300
Application
Marine piping systems, Offshore platforms
Certification
ISO9001 Quality Management System
Documentation
Full Technical Documentation, Mill Test Report
Size Range
DN15 to DN600 (1/2“ to 24“)
As a professional marine valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our CB/T4303 Marine Check Valve, engineered for superior reliability in demanding maritime applications. Our commitment to the ISO9001 quality management system ensures that every valve, from production to final inspection, meets stringent international standards. We understand the critical nature of fluid control on vessels and offshore installations, which is why we provide comprehensive technical documentation and mill test reports with every order, offering you complete traceability and peace of mind.
This marine check valve is designed to prevent the reverse flow of media within piping systems, protecting pumps, compressors, and other critical equipment from potential damage. Its robust construction and adherence to the CB/T4303 standard make it a trusted component for shipbuilding, offshore oil & gas, and port facility projects worldwide.
Key Features & Technical Advantages:
- Robust Construction & Material Options: Manufactured from high-grade materials including cast steel, ductile iron, and stainless steel to withstand corrosive marine environments, high pressures, and temperature variations.
- Precise Swing Check Mechanism: Features a hinged disc or swing design that opens with forward flow and closes automatically under reverse flow or gravity, ensuring prompt and tight sealing to prevent backflow.
- Comprehensive Pressure & Size Range: Available in a wide spectrum of pressure ratings (PN10/16/25, Class150/300) and sizes from DN15 (1/2") to DN600 (24") to suit diverse system requirements.
- Full Technical Documentation: Each valve is supplied with detailed dimensional drawings, material certificates, installation manuals, and maintenance guides, facilitating seamless integration and long-term service.
- Mill Test Report (MTR) Provided: The included MTR verifies the chemical composition and mechanical properties of the valve body and internal components, confirming compliance with specified material grades.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Design & Manufacturing Standard | CB/T4303 |
| Common Body Materials | WCB (Cast Carbon Steel), QT450 (Ductile Iron), CF8/CF8M (Stainless Steel 304/316) |
| Disc & Seat Materials | Stainless Steel, Rubber Coated, Bronze |
| Connection Standards | Flanged per JIS, DIN, ANSI, GB; Threaded per NPT, BSP, BSPT |
| Pressure Rating Range | PN10, PN16, PN25, Class150, Class300 |
| Temperature Range | -29°C to +425°C (dependent on material) |
| Applicable Media | Water, Sea Water, Oil, Gas, Steam |
Benefits for Your Operations:
- Enhanced System Safety: Reliably prevents backflow, safeguarding expensive downstream equipment and ensuring operational continuity.
- Reduced Maintenance Costs: Durable construction and quality materials minimize wear, leading to longer service intervals and lower lifetime costs.
- Simplified Procurement & Compliance: Complete documentation package streamlines your quality control, audit processes, and regulatory compliance for marine projects.
- Global Supply Chain Support: With annual export values between US$1-1.5 million and shipment ports including Shanghai, Guangzhou, Hong Kong, and Beijing, we efficiently serve a global clientele across North America, South America, Europe, Asia, Africa, and Oceania.
Our proven track record in supplying to diverse global markets, backed by our ISO9001 certification, underscores our capability to deliver marine valves that meet exacting standards. Choosing our CB/T4303 Marine Check Valve means investing in a component supported by full transparency—from material sourcing to final testing. We invite you to contact us to discuss your specific requirements and experience the Zhibang Valve difference in quality, documentation, and reliable service.
Frequently Asked Questions (FAQ):
-
Q: What is the significance of the CB/T4303 standard for this valve?
A: CB/T4303 is a Chinese national standard specifically for marine valves. It defines the design, material, manufacturing, testing, and inspection requirements to ensure the valve's suitability and reliability for marine and offshore applications. -
Q: What exactly is included in the "Full Technical Documentation"?
A: The package typically includes product data sheets, detailed dimensional drawings, material certificates, installation and operation instructions, maintenance manuals, and a packing list, providing all necessary information for proper use and record-keeping. -
Q: Can I get valves in materials or pressure ratings not listed?
A: Yes. We offer customization. Materials like super duplex stainless steel or special pressure classes can be available upon request. Please contact our sales team with your specific needs. -
Q: How does the Mill Test Report benefit me as a buyer?
A: The MTR is a certified document from the material mill. It provides verifiable proof of the chemical and mechanical properties of the raw materials used, which is crucial for quality audits, safety certifications, and ensuring the valve meets your project's material specifications. -
Q: Are these valves suitable for both freshwater and seawater systems onboard?
A: Absolutely. The valve's material selection, such as stainless steel 316 or coated options, is designed to handle both freshwater and highly corrosive seawater media effectively. -
Q: What is your typical lead time for an order?
A: Lead time varies based on order quantity, specification complexity, and material availability. Standard configurations typically have shorter lead times. We provide an estimated timeline upon receipt of your detailed inquiry. -
Q: Do you offer any warranty on your marine check valves?
A: Yes, we provide a standard warranty against manufacturing defects. The specific warranty terms and duration are detailed in our commercial contract and are based on the application and service conditions. -
Q: Can you assist with valve selection for a specific application?
A: Certainly. Our technical team can help you select the appropriate valve type, material, size, and pressure rating based on your system parameters (media, pressure, temperature, flow rate). Please share your application details with us.
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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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