Products
Stainless Steel Perforated Filter Tube
Material: 304/316/316L Stainless Steel | Duplex Steel | Super Austenitic Alloys
Perforation Method: Laser Drilling | Precision Stamping
Hole Diameter: 0.5mm-20mm (±1% Precision, Radial/Helical Patterns)
Tube Dimensions: OD 10mm-300mm | Wall Thickness 0.5mm-5.0mm
Surface Finish: Electropolishing | Pickling Passivation | Anti-Fouling Coating
Applications: Wastewater Treatment | Chemical Reactors | Food-Grade Filtration
Stainless Steel Perforated Filter Tub
Material Excellence
- Premium Alloys:
- 304/304L SS: General-purpose grade with 18% Cr, 8% Ni, ideal for food processing or water treatment in mildly corrosive environments.
- 316/316L SS: Enhanced corrosion resistance (Mo content ≥2.1%, PREN ≥27) for chemical processing or marine applications exposed to chlorides.
- Duplex 2205: High strength (2x 316SS) and chloride resistance (PREN ≥35), used in offshore oil rigs or acidic wastewater systems.
- Super Austenitic 904L: Resists pitting in sulfuric acid (tested per ASTM A240), deployed in pharmaceutical CIP systems or mining slurry filtration.
- Custom Hole Geometry:
- Hole Sizes: Ranging from 0.5mm to 25mm for coarse debris screening or fine particle retention.
- Patterns: Staggered, inline, or radial layouts with 5–60% open area, optimized for flow rates up to 500 m³/h.
Stainless Steel Perforated Filter Tube
Engineering Features
- Structural Integrity:
- Wall Thickness: 1mm–12mm to withstand pressures up to 150 bar (per ASME BPE standards).
- Reinforced Ends: Flanged, threaded, or welded connections (TIG or laser-welded) for high-vibration environments like hydraulic systems.
- Surface Enhancements:
- Electropolishing: Achieves Ra ≤0.4µm surface finish to prevent biofilm adhesion in dairy processing or bioreactors.
- Passivation: Nitric acid treatment per ASTM A967 to maximize corrosion resistance in chlorinated water systems.
- Thermal Adaptability:
- Operational Range: -200°C to 900°C (cryogenic LNG screens to incinerator ash filters).
Stainless Steel Perforated Filter Tube
Manufacturing Precision
- Advanced Perforation Techniques:
- CNC Punching: ±0.1mm hole positional accuracy for pharmaceutical capsule sieves or fuel injector screens.
- Laser Cutting: Creates complex slot geometries (e.g., 0.3mm × 5mm slots) for polymer extrusion dies or battery electrode coating.
- Quality Assurance:
- Dimensional Testing: CMM-verified hole alignment (per ISO 2768 tolerances).
- Pressure Testing: Hydrostatic validation to 1.5x working pressure (per ASME BPVC Section VIII).
- Custom Fabrication:
- Tapered Designs: For cyclone separators or fluidized bed reactors.
- Multi-Layer Assemblies: Nested tubes with progressive hole sizes for multi-stage filtration.
Stainless Steel Perforated Filter Tube: Industry Applications
- Oil & Gas:
- Sand Control Screens: 316L tubes with 100–300µm slots, rated for 10,000 psi in shale gas fracking.
- Scrubber Internals: Duplex 2205 tubes for sour gas treatment (H2S/CO2 removal).
- Water Management:
- Well Screens: 304SS tubes with 1–5mm holes, NSF/ANSI 61-certified for potable water.
- Membrane Bio-Reactor (MBR) Diffusers: Laser-perforated 316L tubes for wastewater aeration.
- Food & Beverage:
- Brewery Mash Tuns: Electropolished 304 tubes with 2mm holes, CIP/SIP compatible.
- Sugar Crystallizer Screens: 904L alloy for corrosion resistance in acidic syrups.
- Energy:
- Geothermal Strainers: Super austenitic tubes handling 300°C brine with high silica content.
- Hydrogen Compressor Filters: 316SS tubes with 0.8mm holes for particulate removal.
- Chemicals:
- Reactor Feed Screens: Hastelloy-clad tubes for sulfuric acid catalyst retention.
- Fluidized Bed Distributors: Custom-patterned 316L tubes for polyethylene granulation.
Aerospace
Industries
Architecture
Industries
Food Beverage
Industries
Mining
Industries
TOMAI MESH Services
Why Choose Us?
PROVEN CAPABILITY
We are accredited to AS 9100, IATF 16949 and ISO 14001, supplying components to the highest industry benchmarks.
20+ Years Experience
We have more than 20 years of experience in metal woven mesh and perforated metal products industry.
First-Class Raw Material
First-class raw material from Taigang Group, Shougang Group, Baogang Group.Have standard and professional material types.
Customized Product Design
Special customized production and drawings are available no matter batch or small quantity.
Delivery on Time
Our customers are informed throughout the production schedule to ensure that orders are delivered on time or ahead of schedule.
After-Sale Service
Quality warranty, technical support and fast compensation work together to gain customers' trust and reliance.
Yes, our company provides customized service. We can customize the processing according to the specific needs of customers. We can provide personalized solutions according to the size, aperture, material requirements and other special needs of our customers. Our technical team will ensure that customized products meet your requirements and provide professional design and manufacturing support.
The lead time of the product usually depends on the number of orders, complexity and whether custom processing is involved. Delivery times for standard products are generally 7-15 business days, while custom products can take longer, usually 15-30 business days. We will confirm the specific delivery time with you according to the order status and do our best to ensure timely delivery. If there is an urgent need, please contact us, we will arrange priority production according to your requirements.
Yes, we provide comprehensive after-sales service. Our after-sales team will assist with any problems encountered during the use of the product, including installation, use and maintenance. If you find quality problems or have any technical questions during use, please feel free to contact us, we will provide you with timely technical support and solutions. We are committed to ensuring customer satisfaction and providing you with long-term support.
We are more than happy to provide our customers with samples for testing. For standard products, you can request samples directly for testing to ensure that the product meets your needs. For custom products, we can provide small batch samples or preliminary designs for your review. After confirming the sample, we will further adjust and improve the product design based on your feedback. The cost and freight of the sample can be further discussed with our sales team.
Yes, all our products meet international quality standards. We strictly follow the ISO certification system and related industry standards for production and inspection to ensure that every product meets the high quality requirements.
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