Contact Platform Support
Help CenterMarine Grade Check Valve for Compressed Air Piping, Meets CB/T4303, Cast Iron & Rubber
Product Spotlights
Related Products
-
Compressed Air System Marine Check Valve, CB/T4303 Design With Wafer ConnectionNegotiableMOQ: 1 Unit -
CB/T4303 Valve for Marine Engine Room Compressed Air Supply, Durable Cast Iron BuildNegotiableMOQ: 1 Unit
-
Wafer Type Marine Air Check Valve CB/T4303, Cast Iron Construction for Shipboard UseNegotiableMOQ: 1 Unit
-
CB/T4303 Marine Compressed Air Check Valve With Cast Iron Body & Nitrile Rubber SealNegotiableMOQ: 1 Unit
-
CB/T4303 Compliant Marine Butterfly Check Valve for Compressed Air, DN80-DN150 Size RangeNegotiableMOQ: 1 Unit
As a leading manufacturer specializing in industrial valve solutions, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Marine Grade Check Valve, engineered specifically for demanding compressed air piping applications in marine environments. Established in 2016, we have built a strong reputation for reliability, with our products reaching global markets from North America to Southeast Asia. This valve is meticulously designed to meet the rigorous CB/T4303 standard, ensuring it performs flawlessly under the harsh conditions of sea operations. Its robust construction using cast iron and a high-grade rubber sealing mechanism guarantees a secure, long-lasting seal, preventing costly backflow and protecting your critical air systems from pressure surges and contamination.
This valve is a critical component for maintaining the integrity and efficiency of onboard compressed air systems. It offers several distinct advantages that translate directly into operational benefits for our clients.
- Superior Backflow Prevention: The unique rubber flap design provides a tight, instantaneous seal the moment flow attempts to reverse, safeguarding upstream equipment like compressors and dryers.
- Corrosion Resistance for Marine Use: The cast iron body is treated with specialized coatings suitable for saltwater atmospheres, while the selected rubber compound resists degradation from moisture and oil-laden air.
- Low Pressure Drop & High Flow Efficiency: The streamlined internal passage and lightweight rubber flap minimize flow resistance, ensuring maximum system efficiency and reducing energy consumption.
- Durable & Low Maintenance: Built with heavy-duty materials and a simple, effective mechanism, this valve requires minimal maintenance, leading to reduced lifecycle costs and less downtime.
- Versatile Installation: Designed for installation in both horizontal and vertical pipelines, it offers flexibility in system layout and space-constrained engine rooms.
- Quiet Operation: The rubber-to-metal seal contact significantly dampens the water hammer noise typically associated with metal-seated check valves, contributing to a better working environment.
To provide a clear overview of its capabilities, here are some key technical specifications:
| Parameter | Specification |
|---|---|
| Body Material | Cast Iron (GG25/GGG40) |
| Seal/Disc Material | Nitrile Rubber (NBR) or EPDM (Optional) |
| Design Standard | CB/T4303 (Marine Valve Standard) |
| Nominal Pressure (PN) | PN16 (1.6 MPa) |
| Nominal Diameter (DN) | DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300 |
| Connection Standard | Flanged per GB/T 9113, JIS, ANSI (Available upon request) |
| Temperature Range | -10°C to +80°C (for NBR seal) |
| Suitable Media | Compressed Air, Inert Gases |
Our commitment to quality is backed by an ISO9001-certified manufacturing process, ensuring every valve that leaves our Shanghai facility meets stringent consistency and performance criteria. With an annual export value ranging between US$1 Million and US$1.5 Million, our products are trusted by clients across diverse regions, including Eastern Europe, Oceania, and the Middle East. We ship from major ports like Shanghai, Guangzhou, and Hong Kong, ensuring reliable and timely delivery. Choosing our Marine Grade Check Valve means investing in a component that enhances system safety, reduces maintenance headaches, and is built to withstand the test of time and environment. Contact us today to discuss your specific requirements or to request a detailed quotation.
Frequently Asked Questions (FAQ)
Q1: What is the primary advantage of using a check valve specifically designed for marine compressed air systems?
A: Marine environments expose equipment to high humidity, salt spray, and vibration. Our valve is built to CB/T4303, a standard addressing these conditions, ensuring materials and construction resist corrosion and perform reliably, unlike standard industrial valves which may fail prematurely.
Q2: Can this valve be used with media other than compressed air?
A: While optimized for compressed air, it can handle other dry, non-corrosive, and non-aggressive gases. For liquids or other media, please consult our technical team to confirm material compatibility.
Q3: Is the rubber seal suitable for oil-contaminated air?
A: The standard Nitrile Rubber (NBR) seal offers good resistance to oil. For systems with significant oil content, we can provide valves with FKM (Viton) seals upon request for enhanced durability.
Q4: What flange standards do you offer?
A: We typically supply flanges per Chinese GB/T 9113 standard. However, to suit global projects, we can manufacture valves with JIS, ANSI, DIN, or other international flange standards. Please specify your requirement when inquiring.
Q5: How does the low-pressure drop feature benefit my system?
A: A lower pressure drop means the compressor doesn't have to work as hard to push air through the system, leading to energy savings, reduced wear on the compressor, and potentially allowing for the use of a smaller, more efficient compressor unit.
Q6: Do you offer customization for specific pressure ratings or sizes outside the listed range?
A: Yes, as a manufacturer, we have the capability to customize valves. We can discuss non-standard pressure ratings (higher or lower) and sizes. Customization options are available upon request and subject to engineering review.
Q7: What is the typical lead time for an order?
A: Lead time depends on order quantity and specifications. For standard sizes and materials, we often have stock or short production cycles. We provide accurate lead time estimates with every formal quotation.
Q8: What kind of warranty or after-sales support do you provide?
A: We stand behind the quality of our products. Specific warranty terms are provided with the commercial contract. Our technical team is available to provide installation guidance and troubleshoot any operational issues.
Send Inquiry to This Supplier
You May Also Like
-
CB/T4303 Marine Check Valve With Counterweight, Cast Steel Body, DN50 to DN300NegotiableMOQ: 1 Unit
-
CB/T4303 Marine Air Check Valve With 12-Month Warranty and Mill Test ReportNegotiableMOQ: 1 Unit
-
DN80 Marine Check Valve With Counterweight, Slow Closing Design, Cast Steel ConstructionNegotiableMOQ: 1 Unit
-
CB/T4303 Standard Counterweight Swing Check Valve for Ship Piping, PN4.0MPaNegotiableMOQ: 1 Unit
-
Counterweight Check Valve for Marine Engine Cooling Water Lines, CB/T4303 StandardNegotiableMOQ: 1 Unit
-
Marine Counterweight Check Valve, CB/T4303, Cast Steel, DN100-DN250 Sizes AvailableNegotiableMOQ: 1 Unit
-
Marine Check Valve With Counterweight for Bilge and Ballast Systems, DN65-DN200NegotiableMOQ: 1 Unit
-
Marine Counterweight Check Valve for Seawater Systems, PN1.0-4.0MPa, CB/T4303 CompliantNegotiableMOQ: 1 Unit
-
CB/T4303 Counterweight Check Valve for Marine Use, Standard Compliant, Technical Support AvailableNegotiableMOQ: 1 Unit
-
CB/T4303 Marine Check Valve With Counterweight, 12-Month Warranty, Mill Test ReportNegotiableMOQ: 1 Unit
