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Help CenterCB/T497-94 Standard Coarse Water Filter With PN1.0MPa Pressure Rating
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As a professional manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing reliable fluid control solutions. Our CB/T497-94 Standard Coarse Water Filter is engineered for robust performance in pipeline protection, effectively removing coarse particles and debris to safeguard downstream equipment. With an annual export value reaching US$1.5 million and a presence across global markets from North America to Southeast Asia, we understand the critical need for durable and efficient filtration in diverse industrial applications. This filter represents our commitment to quality, built to withstand a pressure rating of PN1.0MPa and designed for long-term, maintenance-friendly operation.
This coarse water filter serves as the first line of defense in fluid systems. Its primary function is to capture and retain larger particulate matter—such as sand, scale, rust flakes, and pipeline debris—before it can reach and damage sensitive components like pumps, valves, meters, and heat exchangers. By preventing abrasive wear and clogging, the filter significantly reduces maintenance costs, extends equipment lifespan, and ensures smoother system operation. It is an indispensable component for water supply networks, industrial cooling systems, irrigation, pre-treatment stages in water purification, and general service pipelines where fluid cleanliness is paramount.
Key Design Features & Technical Advantages:
- Standardized Design: Manufactured in strict compliance with the Chinese professional standard CB/T497-94, ensuring dimensional interchangeability, reliable performance, and ease of replacement within existing systems that specify this standard.
- Robust Pressure Handling: Rated for a nominal pressure of PN1.0MPa (approximately 145 psi), making it suitable for a wide range of medium-pressure water and industrial fluid applications.
- High-Capacity Filtration: Features a perforated stainless steel strainer basket with optimized mesh or hole size. This design provides a large filtration area, resulting in low pressure drop across the filter and high dirt-holding capacity, which extends service intervals between cleanings.
- Durable Construction: The main body is typically constructed from ductile iron or cast steel, offering excellent strength and corrosion resistance. Alternative materials like cast iron or stainless steel may be available upon request for specific media compatibility.
- Easy Maintenance: Designed for straightforward manual cleaning. The cover is secured with bolts, allowing for quick opening. The strainer basket can be easily removed, rinsed clean, and reinstalled without the need for special tools, minimizing downtime.
- Reliable Sealing: Utilizes high-quality sealing gaskets, such as NBR or EPDM, between the body and cover to ensure a leak-proof seal under the rated pressure conditions.
- Flanged Connections: Comes standard with flanged ends (e.g., PN10/16 flanges as per relevant standards), facilitating secure and leak-free installation into flanged piping systems. Other connection types may be customizable.
Typical Technical Specifications:
| Parameter | Specification / Description |
|---|---|
| Applicable Standard | CB/T497-94 |
| Nominal Pressure (PN) | 1.0 MPa |
| Nominal Diameter (DN) Range | Commonly from DN50 to DN500 (specific size subject to inquiry) |
| Suitable Medium | Water, Sea Water, Oil, General Industrial Fluids (non-hazardous) |
| Filtration Precision | Coarse Filtration (e.g., 1.0mm, 2.0mm, 3.0mm mesh/ perforation customizable) |
| Body Material (Typical) | Ductile Iron (QT450-10), Cast Steel (WCB) |
| Strainer Basket Material | Stainless Steel 304 / 316 |
| Connection Standard | Flanged, dimensions per GB, ANSI, or DIN standards as required |
| Operating Temperature | Depends on seal material; Standard NBR seals suitable for -10°C to 80°C |
Benefits for Your Operation:
- Equipment Protection: Acts as a cost-effective shield, preventing premature failure of expensive downstream equipment.
- Reduced Operational Costs: Lowers frequency of pump repairs, valve replacements, and heat exchanger cleanings.
- System Efficiency: Maintains designed flow rates by preventing partial blockages that increase system resistance.
- Simplicity & Reliability: No moving parts or external power required, ensuring operation even in remote locations or during power outages.
- Flexibility: Available in various sizes and with optional features like different basket meshes or body coatings to match specific project needs.
Frequently Asked Questions (FAQ):
-
Q: What is the main purpose of this coarse water filter?
A: Its primary purpose is to provide coarse filtration in pipeline systems. It captures and removes larger solid particles like sand, rust, and debris from water or other fluids, protecting sensitive equipment installed downstream from damage and clogging. -
Q: How do I know if this filter is compatible with my existing piping?
A: Compatibility depends on the nominal diameter (DN), pressure class, and flange standard. Please provide your pipeline specifications (e.g., DN size, flange standard like ANSI 150, PN16, JIS 10K). We can supply filters with flanges machined to match common international standards. -
Q: What is the cleaning procedure and frequency?
A: Cleaning is manual. Isolate the filter, depressurize the line, open the cover, remove the strainer basket, clean it (rinse, brush), reinstall it, and close the cover. Frequency depends entirely on the particulate load in your fluid; it can range from weekly to annually. A pressure gauge installed across the filter showing an increasing differential pressure indicates it's time to clean. -
Q: Can the filtration mesh size be customized?
A: Yes. While standard meshes are available (e.g., 1.0mm, 2.0mm holes), the perforation size or wire mesh of the stainless steel basket can often be customized to meet your specific filtration requirement, within practical manufacturing limits. -
Q: Is this filter suitable for liquids other than water?
A: It can be suitable for various non-hazardous industrial liquids such as oils, coolants, and certain chemicals. The suitability depends on the chemical compatibility of the filter's construction materials (body, basket, seals) with the specific fluid. Please consult with us regarding your medium's properties. -
Q: What is the significance of the CB/T497-94 standard?
A: CB/T497-94 is a Chinese professional standard that specifies the design, dimensions, technical requirements, and testing methods for this type of pipeline filter. Products conforming to this standard ensure a certain level of quality, performance, and dimensional consistency, which is important for replacement parts or projects specifying this standard. -
Q: Do you provide installation guidance or technical drawings?
A: Yes. Upon request, we can provide general installation manuals, dimensional drawings, and technical data sheets for the specific filter model you are interested in, to assist with your engineering and installation planning.
Backed by our ISO9001 certified manufacturing processes established in 2016, every CB/T497-94 filter undergoes rigorous quality checks to ensure it meets the specified standard and pressure rating. Our proven track record, with exports valued up to US$1.5 million annually reaching diverse markets from North America to Africa and Oceania, is a testament to the reliability and acceptance of our products worldwide. Sourced from major ports like Shanghai and Guangzhou, we ensure efficient logistics. Choosing our coarse water filter means investing in a simple yet vital component that enhances the reliability and longevity of your entire fluid system. Contact us today with your project specifications to receive a competitive quotation and detailed product information.
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