Contact Platform Support
Help CenterCB/T4303 Marine Check Valve With Standard Flange Dimensions
Product Spotlights
Related Products
-
CB/T4303 Butterfly Check Valve for High-Flow Marine ApplicationsNegotiableMOQ: 10 Units -
CB/T4303 Wafer Check Valve With PTFE Seals for Corrosive MediaNegotiableMOQ: 10 Units
-
CB/T4303 Bronze Wafer Check Valve With On-Site Technical SupportNegotiableMOQ: 10 Units
-
CB/T4303 Butterfly Check Valve for Marine Engine Fuel LinesNegotiableMOQ: 10 Units
-
CB/T4303 Butterfly Check Valve for Bilge and Ballast SystemsNegotiableMOQ: 10 Units
As a specialized manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance CB/T4303 Marine Check Valve with Standard Flange Dimensions. Designed to meet the rigorous demands of marine applications, this valve is engineered for reliability, durability, and seamless integration into shipboard piping systems. With an annual export value reflecting our global reach and commitment to quality, we provide a critical component that ensures the safety and efficiency of fluid control on vessels worldwide. Our valve is the ideal choice for shipyards, naval architects, and marine engineers seeking a dependable solution for preventing backflow and protecting sensitive equipment.
This marine check valve is specifically constructed to comply with the CB/T4303 standard, a Chinese national standard for ship valves, ensuring it meets stringent requirements for marine environments. The incorporation of standard flange dimensions facilitates easy installation and compatibility with existing international piping systems, reducing installation time and costs.
-
Robust Construction & Material Options: The valve body and internal components are available in various materials to suit different media and corrosive conditions common in marine operations.
Body Material Cast Iron, Ductile Iron, Cast Steel, Stainless Steel (304/316) Seat/Disc Material NBR, EPDM, PTFE, Metal (Stainless Steel) Pressure Class PN10, PN16, PN25, PN40 Size Range (DN) 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600 - Superior Flow Control & Non-Slam Design: The valve features a precision-engineered disc mechanism that opens smoothly with forward flow and closes swiftly and securely upon flow reversal. Advanced designs, such as dual plate or spring-assisted swing types, are available to minimize water hammer and prevent slamming, which is crucial for protecting long pipeline runs on ships.
- Standard Flange Compatibility: Flanges are manufactured to common international standards (e.g., JIS, ANSI, DIN, GB), ensuring perfect mating with existing flanged pipework. This eliminates compatibility issues and simplifies the procurement process for global shipbuilders.
- Corrosion Resistance & Long Service Life: Materials and surface treatments are selected for exceptional resistance to saltwater, marine atmospheres, and various shipboard fluids (bilge water, ballast water, fuel, etc.). This ensures a long operational lifespan with minimal maintenance, even in the harshest conditions.
- Reliable Performance & Safety: The valve's primary function is to prevent backflow, which is vital for protecting pumps, compressors, and other downstream equipment from damage. Its reliable sealing performance maintains system integrity and contributes to overall vessel safety.
- Easy Installation & Maintenance: The flanged connection design allows for straightforward installation between pipe flanges. Many models feature a bolted bonnet or cover, enabling easy internal inspection, seat replacement, or maintenance without removing the entire valve from the pipeline.
Backed by our ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. guarantees consistent quality and reliable performance in every valve we produce. Our products have been successfully exported to major markets across North America, South America, Europe, Asia, Africa, and Oceania, demonstrating their global acceptance and reliability. Sourced from our strategic locations in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure efficient logistics and timely delivery. Choose our CB/T4303 Marine Check Valve for a proven, standards-compliant solution that enhances the safety, efficiency, and longevity of your marine fluid systems. Contact us today for a quotation or to discuss your specific project requirements.
Frequently Asked Questions (FAQ)
-
Q: What does "CB/T4303" signify for this valve?
A: CB/T4303 is a Chinese national standard specifically for valves used in ships. It defines the design, materials, testing, and performance requirements to ensure the valve is suitable for marine service conditions. -
Q: Are the flange dimensions compatible with ANSI or JIS standards?
A: Yes. While the valve conforms to the CB/T4303 standard, the flange dimensions can be manufactured to match common international standards such as ANSI, JIS, DIN, or GB upon request, ensuring global compatibility. -
Q: What media is this check valve suitable for?
A: It is designed for marine applications, handling seawater, bilge water, ballast water, fuel oil, lubricating oil, compressed air, and other non-aggressive fluids typically found on ships. The specific material selection will depend on the media. -
Q: How does this valve prevent water hammer or slamming?
A: We offer various disc mechanisms. Standard swing check valves may allow some slamming. For critical applications, we provide options like dual plate check valves or spring-assisted swing check valves, which close rapidly and more controllably to significantly reduce the risk of water hammer. -
Q: What is the pressure rating and temperature range?
A: Standard pressure ratings are PN10, PN16, PN25, and PN40. The operational temperature range depends on the seat material. For example, valves with NBR seats typically handle -20°C to 80°C, while those with PTFE or metal seats can withstand higher temperatures. Exact specifications are available upon request. -
Q: Can you provide custom sizes or materials outside the standard range?
A: As a manufacturer, we have the capability for customization. Non-standard sizes, special material grades (e.g., super duplex stainless steel), or specific coating requirements can be discussed and developed based on your project needs. -
Q: What is the lead time for standard orders?
A: Lead times vary based on order quantity, size, and material specification. For standard configurations in common sizes, we typically maintain stock or offer shorter production cycles. Please contact our sales team for an accurate delivery schedule. -
Q: Do you provide documentation and certification?
A> Yes. We can provide standard documentation including material test certificates, product data sheets, and a certificate of conformity. Our manufacturing process is certified to ISO9001 standards.
Send Inquiry to This Supplier
You May Also Like
-
CBT4303 Check Valve Compliant With CB/T4303 Shipbuilding StandardNegotiableMOQ: 10 Units
-
CBT4303 Marine Butterfly Check Valve, Carbon Steel Body, 10 BarNegotiableMOQ: 10 Units
-
CBT4303 Flanged Non-return Valve, Low Pressure Drop DesignNegotiableMOQ: 10 Units
-
CBT4303 Butterfly Check Valve for Marine Engine Exhaust LinesNegotiableMOQ: 10 Units
-
CBT4303 Wafer Check Valve With Mill Test Report and WarrantyNegotiableMOQ: 10 Units
-
CBT4303 Ship Flanged Butterfly Non-return Valve, PN16 Pressure RatingNegotiableMOQ: 10 Units
-
CBT4303 Wafer Check Valve for Seawater Cooling Systems, Anti-corrosionNegotiableMOQ: 10 Units
-
CBT4303 Marine Wafer Check Valve, 316 Stainless Steel, DN50-DN600NegotiableMOQ: 10 Units
-
CBT4303 Butterfly Non-return Valve, Standard Spare Parts AvailableNegotiableMOQ: 10 Units
-
CBT4303 Flanged Check Valve for Bilge and Ballast System PipingNegotiableMOQ: 10 Units
