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Help CenterCB/T497 A-Type Strainer for Shipboard Seawater Filtration, Cast Iron Construction, PN1.0MPa
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As a professional manufacturer of industrial valves and pipeline components since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable solutions for demanding marine applications. Our CB/T497 A-Type Strainer is engineered specifically for shipboard seawater filtration, offering superior protection for critical onboard systems against debris, marine growth, and particulate matter. Built with durable cast iron construction and designed to withstand a pressure rating of PN1.0MPa, this strainer is a fundamental component for ensuring the longevity and operational efficiency of seawater cooling, ballast, firefighting, and other vital marine piping systems.
This strainer features a classic A-Type or Y-pattern design, which is renowned for its compact footprint and effective filtration capabilities. The primary function is to trap and retain solid particles from the fluid stream, preventing them from damaging pumps, heat exchangers, valves, and other sensitive equipment downstream. The design allows for easy maintenance; the basket screen can be removed for cleaning without disconnecting the main pipeline, minimizing system downtime. Key characteristics include:
- Rugged Construction: The main body is made from high-grade cast iron, providing excellent corrosion resistance and mechanical strength suitable for the harsh marine environment.
- Efficient Filtration: Equipped with a perforated or mesh stainless steel basket screen that effectively captures particles while maintaining optimal flow rates.
- Easy Maintenance: The bolted cover design allows for quick access to the strainer basket for inspection, cleaning, or replacement.
- Standard Compliance: Manufactured in accordance with the Chinese CB/T497 standard, ensuring dimensional interchangeability and performance reliability.
- Versatile Installation: Suitable for horizontal or vertical installation (with flow direction considered), offering flexibility in tight engine room spaces.
The technical specifications and configuration options for our CB/T497 A-Type Strainer are detailed below. Standard specifications can be customized upon request to meet specific project requirements.
| Parameter | Specification |
| Product Model / Standard | CB/T497 A-Type (Y-Type) Strainer |
| Body Material | Cast Iron |
| Screen Basket Material | Stainless Steel 304 (316 optional) |
| Pressure Rating (PN) | 1.0 MPa (10 bar) |
| Connection Type | Flanged as per standard (RF face common) |
| Suitable Fluid | Seawater, Fresh Water, Oils, General Liquids |
| Operating Temperature | -20°C to 120°C (dependent on gasket material) |
| Screen Mesh Size | Customizable (e.g., 1.0mm, 2.0mm, 3.0mm perforations) |
| Cover Gasket Material | NBR, EPDM, or PTFE (available upon request) |
Advantages and Client Benefits: Choosing our A-Type Strainer translates into tangible operational benefits. The robust cast iron body ensures a long service life even under constant exposure to seawater, reducing replacement frequency and lifecycle costs. The efficient filtration protects expensive downstream equipment from abrasive wear and clogging, leading to fewer breakdowns and maintenance interventions. The design adhering to the CB/T497 standard guarantees compatibility with existing marine piping layouts, simplifying the procurement and installation process for shipyards and vessel operators. Furthermore, our strainer's maintainability feature allows crew to perform quick cleaning cycles, ensuring continuous system operation with minimal disruption.
Backed by our ISO9001:2015 certified quality management system, every CB/T497 A-Type Strainer undergoes stringent production and testing procedures to meet consistent performance standards. Our global export footprint, spanning markets in North America, South America, Europe, Asia, Africa, and Oceania, with an annual export value ranging between US$1 Million and US$1.5 Million, is a testament to the reliability and acceptance of our products worldwide. We support our international clients with flexible shipment options from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing. For your next marine project requiring dependable seawater filtration, our strainer offers a proven, cost-effective solution designed for performance and durability. Contact us today for detailed quotations, technical drawings, or to discuss custom requirements.
Frequently Asked Questions (FAQ)
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Q: What is the main purpose of this A-Type strainer on a ship?
A: Its primary purpose is to filter seawater used in various shipboard systems (like cooling, ballast, fire mains) by removing solid particles such as sand, shells, and debris. This protects pumps, valves, and heat exchangers from damage and clogging. -
Q: Can this strainer handle other fluids besides seawater?
A: Yes. While designed for seawater, it is suitable for filtering fresh water, lubricating oils, fuel oils (with compatible gaskets), and other non-aggressive liquids within its pressure and temperature ratings. -
Q: How do I know what mesh size (screen perforation) I need?
A: The required mesh size depends on the particle size you need to filter and the equipment you are protecting. Common sizes for marine seawater are between 1mm and 5mm. We can advise based on your specific application. -
Q: Is the strainer basket easy to clean or replace?
A: Yes. The design includes a bolted cover. By unbolting the cover, you can directly access, remove, clean, and re-install the basket screen without removing the entire strainer body from the pipeline, facilitating easy maintenance. -
Q: What are the available connection sizes and standards?
A: We produce strainers in a range of nominal diameters (DN) as per the CB/T497 standard, typically from DN50 to DN300. Flanges conform to common standards like GB, ANSI, or JIS. Please specify your required size and flange standard when inquiring. -
Q: Are other body materials available besides cast iron?
A: Cast iron is standard for seawater due to its cost-effectiveness and corrosion resistance. Other materials like ductile iron, cast steel, or stainless steel can be available as a customization option for specific corrosive services or client specifications. -
Q: What is the delivery time for a standard order?
A: Delivery time depends on the order quantity and specifications. For standard DN sizes and materials, we often have stock or short production lead times. An accurate timeline can be provided upon receipt of your detailed inquiry. -
Q: Do you provide documentation like material certificates and test reports?
A: Yes. As an ISO9001 certified manufacturer, we can provide standard documentation including material certificates, hydrostatic test reports, and product data sheets upon request.
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