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Help CenterDuplex Strainer Basket, 304 SS, 20 Mesh, 2" Screwed Connection, 350 PSI, Bolted Cover Design
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Anping County Boli Hardware Wiremesh Products Factory, established in 1998, is a professional manufacturer specializing in wire mesh and filtration products. Our Duplex Strainer Basket, 304 SS, 20 Mesh, 2" Screwed Connection, 350 PSI, Bolted Cover Design is engineered to deliver reliable solid-liquid separation for demanding industrial applications. With over two decades of manufacturing expertise and an annual export value exceeding US$5 million, we ensure each strainer meets rigorous quality standards.
This duplex strainer features two independent baskets with a bolted cover design, allowing continuous operation even during cleaning. The 304 stainless steel construction provides excellent corrosion resistance, while the 20 mesh screen offers fine filtration for particles down to approximately 850 microns. The 2" screwed connection (NPT) ensures easy installation in existing piping systems, and the 350 PSI pressure rating makes it suitable for moderate to high-pressure lines.
Key Features & Benefits
- Duplex Design: Two baskets allow one to be cleaned while the other remains in service, minimizing downtime.
- 304 Stainless Steel: Resists rust and chemical attack, ideal for water, oil, gas, and many process fluids.
- 20 Mesh Screen: Provides effective filtration for coarse particles, protecting downstream equipment.
- 2" Screwed Connection: Standard NPT threads for quick and secure installation without welding.
- 350 PSI Rating: Suitable for high-pressure systems up to 24 bar, with safety margin.
- Bolted Cover: Easy access for basket removal and cleaning; gasket ensures leak-proof sealing.
- Compact Footprint: Space-saving design fits into tight piping layouts.
Technical Specifications
| Parameter | Value |
| Material | 304 Stainless Steel |
| Mesh Size | 20 Mesh (0.84 mm opening) |
| Connection | 2" NPT Female Thread |
| Pressure Rating | 350 PSI (24 bar) @ 100°F |
| Design | Duplex with Bolted Cover |
| Gasket | NBR (standard); PTFE optional |
| Operating Temperature | -20°F to 400°F (-29°C to 204°C) |
Detailed Advantages
The bolted cover design simplifies maintenance: simply remove the bolts, lift the cover, and pull out the basket for cleaning. Unlike flanged or welded covers, this design reduces tooling requirements and speeds up service. The duplex configuration ensures that process flow is never interrupted — a critical advantage for continuous operations in chemical plants, oil refineries, water treatment, and food processing.
The 304 stainless steel grade offers good resistance to many organic and inorganic chemicals, making it a versatile choice for diverse media. The 20 mesh screen is balanced between flow capacity and filtration efficiency, capturing particles like sand, scale, and debris without excessive pressure drop. Each unit is hydrostatically tested at 1.5 times the rated pressure to ensure integrity.
Customer benefits include:
- Reduced maintenance downtime due to duplex design.
- Long service life from corrosion-resistant 304 SS.
- Quick installation with standard threaded connections.
- Cost-effective filtration without compromising durability.
- Customizable mesh sizes (available upon request).
Trust & Reliability
As a manufacturer with over 25 years of experience, Anping County Boli Hardware Wiremesh Products Factory has exported to markets across North America, South America, Europe, Asia, Africa, and Oceania, with annual export revenues exceeding US$5 million. Our production facility in Hengshui, Hebei, China, is equipped with advanced machinery and strict quality control processes. We ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery worldwide.
Every Duplex Strainer Basket is manufactured with attention to detail, from the precision-woven mesh to the machined threads. We offer flexible customization options, including alternative gasket materials, finer mesh, or special coatings. Contact us today to discuss your specific filtration requirements and benefit from competitive pricing, reliable quality, and professional support.
Frequently Asked Questions
Q1: What is the difference between a duplex strainer and a simplex strainer?
A: A duplex strainer has two filter baskets with a diverting mechanism, allowing one basket to be cleaned while the other remains in operation, ensuring continuous flow. A simplex strainer has only one basket and requires shutdown for cleaning.
Q2: Can I use this strainer for steam service?
A: 304 stainless steel can handle moderate steam temperatures up to 400°F, but the pressure rating may decrease at higher temperatures. Please consult our technical team for specific steam applications.
Q3: What mesh sizes are available besides 20 mesh?
A: We offer a wide range of mesh sizes from coarse (e.g., 4 mesh) to fine (e.g., 100 mesh) upon request. Custom perforated plates are also available for specific filtration needs.
Q4: Is the gasket included with the strainer?
A: Yes, each strainer comes with a standard NBR (Buna-N) gasket. PTFE or Viton gaskets can be supplied as options for higher temperature or chemical resistance.
Q5: How do I clean the basket?
A: Remove the bolted cover, lift out the basket, and rinse or brush away debris. The basket can be reinstalled easily. For heavy fouling, ultrasonic cleaning or replacement is recommended.
Q6: What is the maximum working pressure at elevated temperatures?
A: The 350 PSI rating is at 100°F. At 400°F, the pressure rating derates to approximately 240 PSI. A pressure-temperature chart is available upon request.
Q7: Can I use this strainer for corrosive fluids like seawater?
A: 304 stainless steel has good resistance to seawater in many conditions, but for long-term exposure, 316 stainless steel is more suitable. We can supply 316 SS versions on request.
Q8: What is the lead time for this product?
A: Standard lead time is 15–25 working days, depending on quantity. Expedited shipping is available for rush orders.
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