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Help CenterCB/T497 A-Type Marine Seawater Strainer Supplied With Mill Test Report and 12-Month Warranty
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As a leading manufacturer specializing in marine fluid control solutions, Shanghai Zhibang Valve is proud to present our high-performance CB/T497 A-Type Marine Seawater Strainer. Engineered to meet the rigorous demands of maritime operations, this strainer is a critical component for protecting valuable shipboard equipment from damaging debris. We combine stringent manufacturing standards, proven materials, and comprehensive quality documentation to deliver a product that ensures operational reliability and longevity for your vessel's seawater systems.
Our strainer is designed to provide superior filtration for seawater intake lines, safeguarding pumps, heat exchangers, condensers, and other sensitive equipment. The robust construction and thoughtful design translate into reduced maintenance downtime, lower operational costs, and enhanced system protection—key values for any ship owner or operator.
Core Features & Technical Advantages:
- Compliant Design: Manufactured in strict accordance with the Chinese shipbuilding standard CB/T497, ensuring compatibility and reliability for marine applications.
- Robust Construction: The body is typically crafted from high-grade cast iron, ductile iron, or corrosion-resistant stainless steel, offering durability against harsh seawater environments.
- Efficient Filtration: Features a cylindrical stainless steel screen basket that effectively traps particulates, sand, shells, and other debris from the seawater flow.
- Easy Maintenance: The classic A-Type (or temporary basket) design allows for quick access to the screen basket for inspection and cleaning without disconnecting the pipeline, minimizing system downtime.
- Versatile Configurations: Available in a wide range of port sizes (DN) and pressure ratings to suit various system requirements. Connection types are primarily flanged, with threaded options available upon request.
- Customizable Filtration: The screen mesh size can be customized (e.g., from 10 to 100 mesh) based on the specific protection level required for your downstream equipment.
Detailed Specifications & Parameters:
The table below outlines common specifications. Please note that specific parameters can be tailored to your project needs.
| Parameter | Description / Typical Value |
|---|---|
| Applicable Standard | CB/T497 |
| Type | A-Type (Basket Strainer) |
| Nominal Diameter (DN) | DN50, DN80, DN100, DN150, DN200, DN250, DN300, etc. |
| Body Material | Cast Iron, Ductile Iron, Stainless Steel (304/316) |
| Screen Material | Stainless Steel 304/316 |
| Connection Standard | GB, ANSI, JIS, DIN flanges; Threaded ends optional |
| Design Pressure | Commonly PN10, PN16, Class 150. Higher ratings customizable. |
| Screen Mesh | Per customer requirement (e.g., 20, 40, 60, 80 mesh) |
Benefits for Your Operation:
- Equipment Protection: Prevents abrasive and clogging particles from entering and damaging critical machinery, extending equipment service life.
- Operational Efficiency: Maintains optimal flow rates and heat transfer efficiency in cooling systems by preventing blockages.
- Cost-Effective Maintenance: The easy-clean design reduces labor time and costs associated with strainer servicing.
- Supply Chain Confidence: Each unit is supplied with a Mill Test Report (MTR), providing traceability and verification of material quality and compliance.
- Reduced Risk: Backed by a 12-month warranty, offering peace of mind and protection against manufacturing defects.
Founded in 2016 and holding ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. has established itself as a reliable partner in the global marine industry. With an annual export value ranging between US$1 million and US$1.5 million, our products have gained trust across diverse markets including North America, Europe, Southeast Asia, Africa, and Oceania. Our strategic location in Shanghai, with access to major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensures efficient and flexible logistics for your global supply chain. When you choose our CB/T497 A-Type Marine Seawater Strainer, you are not just purchasing a component; you are investing in a solution backed by professional manufacturing expertise, verified quality, and a commitment to supporting your maritime operations worldwide. Contact us today to discuss your specific requirements and receive a competitive quotation.
Frequently Asked Questions (FAQ):
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Q: What is the main purpose of this marine seawater strainer?
A: Its primary function is to filter solid impurities (like sand, shells, and debris) from seawater used in shipboard cooling systems (for main engines, generators, etc.), protecting downstream equipment from wear, clogging, and damage. -
Q: How does the "A-Type" design benefit maintenance?
A: The A-Type design features a cover that can be unbolted while the strainer body remains in the pipeline. This allows for direct access to the screen basket for quick inspection, cleaning, or replacement without needing to remove the entire unit, saving significant time and effort. -
Q: Can you provide strainers with different connection standards?
A: Yes. While commonly supplied with standard flanges, we can manufacture strainers with flanges matching various international standards such as ANSI, JIS, DIN, or GB, based on your piping system specifications. -
Q: What does the Mill Test Report (MTR) include, and why is it important?
A: The MTR is a certificate from the material mill that details the chemical composition and mechanical properties (like tensile strength, yield strength) of the metals used (body and screen). It is crucial for quality assurance, traceability, and compliance with project or classification society requirements. -
Q: Is the screen mesh size fixed, or can it be customized?
A: The screen mesh size is fully customizable. We work with clients to determine the appropriate mesh (e.g., 30, 60, 100) based on the size of particles you need to filter out to protect your specific equipment. -
Q: What materials are recommended for use in highly corrosive seawater?
A: For extended service in aggressive seawater, we recommend selecting a strainer body and screen made from Stainless Steel 316 or 316L, which offers superior resistance to pitting and crevice corrosion compared to standard materials. -
Q: Does the 12-month warranty cover all parts?
A: Our standard 12-month warranty covers defects in materials and workmanship under normal use. It typically applies to the main body, cover, and screen basket. Wear parts or damage due to improper installation, misuse, or lack of maintenance are generally not covered. -
Q: What is your typical lead time for an order?
A: Lead time varies based on order quantity, material selection, and customization level. For standard specifications, we often have shorter lead times. We provide a specific production schedule upon order confirmation to ensure timely delivery.
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