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Marine Wafer Type Bronze Disc Butterfly Check Valve CBT4303 for Seawater Cooling Systems
Product Spotlights
Marine-grade bronze wafer butterfly check valve designed for seawater cooling systems. Prevents backflow, protects equipment. Compact, lightweight wafer design for easy flange installation. Corrosion-resistant for long life in harsh environments. Spring-assisted for reliable, automatic operation. ISO9001 certified manufacturer with global export experience.
Negotiable
MOQ: 20 Units (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Bronze body and disc
Type:
Wafer type butterfly check valve
Model:
CBT4303
Payment & Shipping
Payment Methods:
Port of Shipment:
shanghai
Delivery Detail:
7 days
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Material
Bronze body and disc
Type
Wafer type butterfly check valve
Model
CBT4303
Connection
Wafer style, between flanges
Application
Seawater cooling systems, marine applications
Operation
Spring-assisted, automatic check function
Size Range
Available in various standard pipe sizes
Seat Material
Synthetic rubber or optional elastomers
Standard
Manufactured to marine industry specifications
Brand
Zhibang Valve
As a dedicated manufacturer with a strong commitment to quality and reliability, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our Marine Wafer Type Bronze Disc Butterfly Check Valve Model CBT4303. Engineered specifically for the demanding environment of seawater cooling systems, this valve is designed to prevent backflow, protect critical equipment, and ensure smooth, uninterrupted operation onboard vessels and in coastal facilities. Our years of experience since 2016 in serving global marine markets have culminated in this robust, corrosion-resistant solution that meets the rigorous standards of the industry.
Key Features & Technical Advantages:
- Superior Corrosion Resistance: The valve body and disc are constructed from high-grade bronze, offering excellent resistance to seawater corrosion, ensuring long service life and minimal maintenance in harsh marine environments.
- Compact Wafer Design: The wafer-type construction allows for easy installation between ANSI/ASME flanges without the need for extra nuts or bolts, saving space, weight, and installation time – a critical advantage in space-constrained marine engine rooms.
- Reliable Check Function: Features a spring-assisted butterfly disc mechanism that provides quick, positive sealing against reverse flow. This automatic operation protects pumps, heat exchangers, and other downstream equipment from damage caused by water hammer or backflow.
- Optimized for Seawater Service: Specifically designed for seawater cooling circuits, including central cooling systems, auxiliary cooling lines, and heat exchanger inlets/outlets. The materials and design resist biofouling and scaling common in seawater applications.
- Low Pressure Drop: The streamlined disc design and full-port opening minimize flow restriction and pressure loss, contributing to energy efficiency in the cooling system.
- Bubble-Tight Seal: Equipped with a synthetic rubber seat (EPDM or Nitrile options available) that ensures a bubble-tight seal in the closed position, preventing any leakage when the system is off or during reverse flow conditions.
- Versatile Mounting: Can be installed in any orientation (horizontal or vertical flow directions), providing flexibility in system piping layout.
- Durable Construction: All components are manufactured to precise tolerances, ensuring reliable performance under varying pressure and temperature conditions typical of marine cooling systems.
Technical Specifications:
| Parameter | Specification |
|---|---|
| Model | CBT4303 |
| Valve Type | Wafer Type Butterfly Check Valve |
| Body & Disc Material | Bronze (C83600 or equivalent) |
| Seat Material | Standard: EPDM (NBR, Viton optional) |
| Connection | Wafer style, fits between ANSI 150/PN16 flanges |
| Size Range (Typical) | DN50 (2") to DN300 (12") (other sizes available) |
| Pressure Rating | PN16 / 150 PSI (Class 150) |
| Temperature Range | -10°C to 120°C (seat material dependent) |
| End Connection Standard | ANSI B16.5, BS EN 1092, JIS B2220 |
| Application Medium | Seawater, Fresh Water, Cooling Water, compatible fluids |
| Operation | Automatic, Spring-assisted |
Benefits for Your Operations:
- Enhanced System Protection: Prevents reverse flow that can damage expensive pumps, compressors, and heat exchangers, reducing downtime and repair costs.
- Reduced Maintenance: The corrosion-resistant bronze construction and reliable sealing mechanism significantly lower the frequency of maintenance interventions.
- Cost-Effective Installation: The lightweight wafer design reduces shipping costs and simplifies installation, requiring fewer personnel and tools.
- Improved System Efficiency: By maintaining proper flow direction and minimizing pressure drop, the valve helps optimize the overall efficiency of the seawater cooling circuit.
- Global Compliance: Manufactured in a facility certified to ISO9001 quality management standards, ensuring consistent quality and traceability. Products are shipped worldwide from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing.
Shanghai Zhibang Valve has established itself as a trusted supplier to the global marine industry, with our products successfully deployed across North America, South America, Europe, Asia, Africa, and Oceania. Our annual export value of US$1-1.5 Million is a testament to the reliability and performance our clients have come to expect. When you choose the CBT4303 valve, you are not just buying a component; you are investing in system integrity, backed by our manufacturing expertise and commitment to customer satisfaction. Contact us today to discuss how this valve can be integrated into your seawater cooling system or to request a customized solution for your specific requirements.
Frequently Asked Questions (FAQ):
-
Q: Is this valve suitable for raw seawater service?
A: Absolutely. The CBT4303 is specifically engineered for seawater applications. The bronze body offers excellent corrosion resistance against saltwater, and the seat materials are selected to withstand the chemical composition of seawater. -
Q: What is the main advantage of a wafer-type check valve over other types?
A: The wafer design is compact and lightweight. It installs directly between two pipeline flanges, eliminating the need for companion flanges, which reduces overall weight, cost, and installation space – crucial factors in marine applications. -
Q: Can this valve be installed vertically with flow upwards?
A: Yes, the CBT4303 can be installed in both horizontal and vertical pipelines. For vertical installation, the flow direction must be upwards to allow the disc to open properly under forward flow. -
Q: What is the pressure rating, and is it suitable for high-pressure cooling systems?
A: This valve is typically rated for PN16/Class 150 (150 PSI), which is standard for many marine cooling systems. For higher pressure requirements, please consult our sales team for alternative models or custom solutions. -
Q: Are different seat materials available?
A: Yes. While EPDM is standard for its good seawater and temperature resistance, we offer optional seat materials like Nitrile (NBR) for wider fluid compatibility or Viton for higher temperature ranges. The choice depends on your specific fluid and operating conditions. -
Q: Do you provide certification or test reports for the valves?
A: As an ISO9001 certified manufacturer, we maintain strict quality control. Standard material certificates and factory test reports (such as shell test) are available upon request to support your project documentation needs. -
Q: What is the lead time for standard sizes?
A: For standard sizes within our DN50-DN300 range, we generally maintain stock or can offer competitive lead times. Exact delivery schedules can be confirmed based on your specific order quantity and destination port. -
Q: Do you offer customization, such as special port dimensions or materials?
A: Yes, we have the capability to customize valves. This can include non-standard sizes, different flange standards (DIN, JIS), or alternative material grades. Please provide your detailed specifications for a quotation.
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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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