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CB/T497 A-Type Seawater Strainer With 304 Stainless Steel Basket, DN50-DN300 Flanged Connection
Product Spotlights
Marine-grade A-Type strainer with 304 stainless steel basket for superior seawater corrosion resistance. Complies with CB/T497 standard, features flanged connections (DN50-DN300) for easy installation. Removable basket design enables quick maintenance, protecting pumps and heat exchangers from debris. Suitable for ships, offshore platforms, and coastal industries.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, 304 Stainless Steel Basket, Cast Iron/Carbon Steel Body
Application:
Other, Seawater
Connection Type:
Flanged (DN50-DN300)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, 304 Stainless Steel Basket, Cast Iron/Carbon Steel Body
Application
Other, Seawater
Connection Type
Flanged (DN50-DN300)
Strainer Type
A-Type (Y-Type) Basket Strainer
Basket Type
Removable Perforated Basket
Design Standard
CB/T497 (China Shipbuilding Standard)
Pressure Rating
Standard PN10/PN16, Higher Optional
Suitable Media
Seawater, Cooling Water, Process Fluids
As a specialized manufacturer with ISO9001 certified production since 2016, Shanghai Zhibang Valve is committed to delivering robust and reliable filtration solutions for demanding marine and industrial applications. Our CB/T497 A-Type Seawater Strainer, featuring a durable 304 stainless steel basket and flanged connections from DN50 to DN300, is engineered to protect critical equipment from debris and particulate matter in seawater and other corrosive fluids. This strainer represents our dedication to quality, evident in our annual export value of US$1-1.5 million to global markets including North America, Southeast Asia, and Europe. We understand the importance of system uptime, and our strainer is designed to provide dependable, long-lasting filtration with minimal maintenance.
Core Product Features & Technical Advantages:
- Superior Corrosion Resistance: The core filtration element is a perforated basket crafted from high-grade 304 stainless steel. This material offers excellent resistance to chloride-induced stress corrosion cracking, pitting, and general corrosion commonly encountered in seawater environments, ensuring a long service life for the basket.
- Robust Construction & Standard Compliance: The strainer body is typically manufactured from cast iron or carbon steel, with internal surfaces often treated for corrosion protection. The entire design and manufacturing process adheres to the CB/T497 standard, a recognized specification in shipbuilding and marine engineering, guaranteeing structural integrity and performance reliability.
- Convenient Maintenance & Inspection: The A-Type (or Y-Type) design features a removable cover on the strainer body, allowing for quick and easy access to the stainless steel basket. This enables straightforward visual inspection, cleaning, or replacement of the basket without requiring the disconnection of the main pipeline, significantly reducing downtime.
- Versatile Flanged Connection: Available with standard flanged ends in sizes ranging from DN50 (2") to DN300 (12"), compatible with common flange standards like PN10/PN16. This ensures easy and secure integration into existing piping systems for seawater cooling, ballast systems, fire mains, and various industrial process lines.
- Effective Filtration Performance: The perforated basket is designed to capture and retain solid particles, shells, marine growth, and other debris suspended in the fluid. This protects downstream equipment such as pumps, heat exchangers, valves, and nozzles from clogging, abrasion, and potential failure.
- Optional Configurations for Enhanced Functionality: To meet diverse operational needs, the strainer can be equipped with optional features. These may include a differential pressure gauge to monitor basket clogging, drain plugs for sediment removal, or alternative basket mesh sizes to achieve different filtration grades.
Key Technical Specifications:
| Product Designation | CB/T497 A-Type (Y-Type) Seawater Strainer |
| Nominal Diameter (DN) | 50, 65, 80, 100, 125, 150, 200, 250, 300 (Other sizes customizable) |
| Basket Material | AISI 304 Stainless Steel (Standard) |
| Body Material | Cast Iron (GG25) or Carbon Steel (WCB) with internal coating |
| Connection Standard | Flanged, PN10/PN16 (ANSI Class 150/300 available) |
| Design Pressure | Typically 1.0 MPa (PN10) / 1.6 MPa (PN16) |
| Suitable Temperature | -10°C to +120°C (Depending on gasket material) |
| Filtration Grade | Depends on basket perforation size (e.g., 1mm, 2mm, 3mm holes) |
Benefits for Your Operation:
- Equipment Protection: Acts as a first line of defense, preventing costly damage to pumps, chillers, and other sensitive components, thereby reducing repair costs and extending asset life.
- Operational Efficiency: Maintains optimal flow rates and heat transfer efficiency in cooling systems by preventing blockages in heat exchanger tubes and condenser plates.
- Reduced Maintenance Downtime: The easy-access design allows for rapid basket cleaning, minimizing the time systems are offline for maintenance.
- Compliance & Reliability: Manufacturing in accordance with CB/T497 provides assurance of a product designed for marine service, suitable for shipyards, offshore platforms, and coastal industrial plants.
Frequently Asked Questions (FAQ):
-
Q: What is the main difference between an A-Type and a Basket-Type strainer?
A: The "A-Type" designation often refers to a simplex or Y-pattern strainer with a single cylindrical basket. It is compact and suitable for applications where space is limited and continuous flow is not critically interrupted during cleaning. Other basket types might be duplex for continuous flow. -
Q: Can this strainer handle fluids other than seawater?
A: Absolutely. While optimized for seawater with its 304 SS basket, it is equally effective for filtering cooling tower water, river water, process water, oils, and other non-aggressive industrial fluids where solid particle removal is required. -
Q: How do I determine the correct basket perforation size?
A: The hole size (e.g., 1.5mm, 3mm) should be selected based on the size of particles you need to remove to protect your downstream equipment. We can advise on standard sizes or manufacture baskets with specific perforation patterns upon request. -
Q: Is the strainer suitable for high-pressure applications?
A: The standard design is for PN10/PN16 pressures. For higher pressure requirements (e.g., PN25, PN40, ANSI Class 300), we can provide strainers with reinforced bodies and suitable flange ratings. Please specify your operating pressure when inquiring. -
Q: What gasket material is used, and is it suitable for my temperature?
A: Standard gaskets are often Nitrile Rubber (NBR) suitable for general water service. For higher temperatures or specific chemical compatibility (e.g., EPDM for hot water, Viton for oils), alternative gasket materials are available. Please inform us of your media temperature. -
Q: Do you offer strainers with a blow-down or drain valve?
A: Yes. Many of our strainers can be fitted with a drain plug or a small valve at the bottom of the strainer body. This allows for periodic draining of accumulated sediment without opening the main cover, which is a convenient feature. -
Q: What is your lead time for a DN150 strainer?
A> For standard DN150 models with 304 SS basket, we typically have a competitive lead time. Exact timelines depend on current order volume and specific configuration. Contact us with your quantity requirement for an accurate delivery schedule. -
Q: Can you provide strainers with different flange standards, like ANSI?
A> Yes. While PN flanges are standard, we regularly manufacture strainers with ANSI B16.5 Class 150 or Class 300 RF flanges to suit projects in the Americas and other regions. Flange facing and drilling can be customized.
Backed by our ISO9001 quality management system and years of experience supplying to diverse markets from North America to Oceania, you can trust Shanghai Zhibang Valve for a seawater strainer built to perform. Our products are shipped from major ports like Shanghai and Guangzhou, ensuring reliable logistics. Choose our CB/T497 A-Type Strainer for a balance of corrosion-resistant durability, practical maintenance, and adherence to marine standards. Protect your investment and ensure smooth operations—contact our team today to discuss your specific requirements, request a detailed quotation, or learn more about our full range of filtration solutions.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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