Stainless Steel Plain Dutch Weave Mesh Supplier

Stainless Steel Plain Dutch Weave Mesh

Anping CREMOTIVE Wire Mesh Products CO., LTD supplies stainless steel plain Dutch weave mesh, designed to meet stringent filtration, separation, and process protection needs in industries such as petrochemicals, pharmaceuticals, food and beverage, and wastewater treatment. The plain Dutch weave pattern uses fine weft wires woven tightly against heavier warp wires in a one-over, one-under sequence, creating narrow, rectangular openings that excel at retaining sub-micron particles while maintaining robust mechanical stability.

Weave Geometry and Material Selection

• Warp vs. Weft Composition:

• Warp Wires: Typically heavier gauge (e.g., 0.20 mm to 0.50 mm) to provide mechanical support.

• Weft Wires: Very fine gauge (e.g., 0.03 mm to 0.15 mm) to produce small rectangular slots (e.g., 5 µm × 40 µm up to 100 µm × 500 µm).

• Stainless Steel Grades:

• 316L Stainless Steel: Standard for plain Dutch weave, offering corrosion resistance in chloride-rich streams (e.g., seawater, brine solutions) and reliable performance in acidic or basic process fluids.

• 304 Stainless Steel: Occasional use for less corrosive environments, where cost optimization is paramount.

• Slot Uniformity & Tolerance: The plain Dutch weave achieves highly uniform openings, with slot width tolerances maintained within ±2 µm for fine meshes. This precision ensures consistent cut-points and predictable filtration performance.

Manufacturing Process

1. Fine-Wire Drawing: Stainless steel rod is drawn through multi-stage diamond dies, achieving precise fine weft wires down to 0.03 mm. Intermediate annealing cycles remove work hardening, maintaining ductility for weaving.

2. High-Tension Weaving: Computer-controlled weaving looms maintain separate tension controls for warp and weft wires. Fine weft wires are guided between heavier warp wires in a tight, sequential pattern to form narrow slots.

3. Crimp Control: Light crimp is applied to warp wires to hold weft wires in position while preserving slot shape. Excessive crimp is avoided to minimize flow restriction and ensure optimal open area.

4. Surface Finishing: After weaving, panels undergo passivation (ASTM A967) to remove surface iron contaminants. Optionally, electropolishing yields a smooth surface (Ra < 0.2 µm) to reduce fouling in hygienic processes.

Performance Characteristics

• High Retention Efficiency: Fine rectangular openings achieve retention of particles as small as 5 µm at 95% efficiency under standard flow conditions.

• Open-Area Ratio: Depending on wire gauges, plain Dutch weave mesh provides open areas between 20% and 35%, balancing throughput and particle capture.

• Mechanical Durability: Heavier warp wires confer longitudinal stiffness, allowing panels to span large filter housings or trays without additional support, while fine weft wires ensure accurate filtration.

• Temperature & Chemical Resistance: Continuous operation up to 400 °C and compatibility with acids, bases, oils, and solvents.

Key Applications

• Pharmaceutical & Biotech: Clarification of active pharmaceutical ingredients (APIs), sterile venting, and separation of cell culture media. The mesh’s uniform slot size ensures consistent particle retention, critical for product quality and regulatory compliance.

• Chemical Processing: Catalyst recovery and particle removal in batch reactors, where sub-micron separation prevents catalyst carryover and extends catalyst life.

• Food & Beverage: Fine polishing of fruit juices, beer, and dairy products. Electropolished plain Dutch mesh minimizes retention of flavor compounds while reliably clarifying cloud points.

• Water & Wastewater Treatment: Removal of silt, algae, and suspended solids prior to membrane systems; protecting membranes and reducing fouling frequency.

• Oil & Gas: Hob filters, de-gasifying screens, and coalescer supports. Uniform slot distribution ensures efficient separation of water and solids from crude or produced water streams.

Customization and Quality Control
Anping CREMOTIVE offers bespoke plain Dutch weave mesh panels with precise dimensioning:

• Panel Sizes: Roll widths up to 1.5 m, roll lengths to 30 m, or flat-cut panels to customer-specified dimensions. Edges may be folded, hemmed, or framed in stainless steel for direct insertion into filter vessels.

• Mesh Specifications: Customers select warp/weft wire diameters, wire materials (304 or 316L), and slot widths to match target cut-points.

• Inspection & Certification: Each order supplies:

• Dimensional Reports: Optical microscopic analysis confirming slot width, wire diameter, and open-area ratio.

• Mechanical Test Data: Tensile and elongation values for representative wire samples.

• Material Certificates: Verified alloy composition per EN 10204 or ASTM A240.

• Support Services: Technical teams advise on optimum mesh selection based on flow rates, pressure drop constraints, chemical compatibility, and service life expectations.

Through careful selection of wire materials, precision weaving, and comprehensive quality controls, Anping CREMOTIVE’s stainless steel plain Dutch weave mesh delivers reliable, consistent filtration performance for critical processes across multiple industries.