Dutch Weave Metal Mesh

Understanding Dutch Weave Mesh

Dutch weave uses unequal wire counts and, typically, unequal wire diameters in the two directions. The densely interlaced wires form filtration passages at their junctions.

Plain Dutch weave - source schematic | Twilled Dutch weave - source schematic

Construction descriptions checked against independent mesh manufacturers. Warp runs along the woven length; weft runs across it.

Specify the Rating Basis

Mesh count alone does not define Dutch weave filtration. A square mesh aperture calculation cannot represent its three dimensional passages. Specify the filtration rating, its test method and the required retention performance.

Table convention: mesh counts per inch; wire diameters in mm; nominal filtration in µm. These units are interpreted from standard catalogue convention because the online tables omit unit labels. Confirm units and the rating basis in the final order.

Catalogue Specifications — SUS304

Twelve published combinations; nominal filtration values span 32 - 211 µm. Refer to the unit and rating notes above.

Replacement Mesh Review

Provide both mesh counts, both wire diameters, the weave type and material. Link the specification to a filter drawing or a verified sample so that the support and sealing interfaces can also be reviewed.

Catalogue Specifications - SUS304 / SUS316L

Twenty one published combinations; nominal filtration values span 3 - 89 µm. Refer to the rating notes for the unit and rating basis.

Published nominal ratings are selection references. They do not establish a guaranteed maximum pore size or retention efficiency without an agreed test basis.

Plain and Twilled Catalogue Specifications

Reverse constructions generally use a higher count of finer warp wires. All entries below are listed as SUS304.

Reverse Plain Dutch Weave

Reverse Twilled Dutch Weave

Values follow the source table, including its sequence and stated wire pairs. Refer to the rating notes for the unit and rating basis; other constructions require confirmation.

Define the Complete Filtration Duty

The source identifies spin pack screens, pleated and cylindrical candle filters, screen packs and leaf discs as application products. Reverse Dutch weaves are also used in filter belts and continuous polymer filtration

Weave close up 1 | Weave close up 2

Material. The published range lists SUS304, SUS316, copper, nickel and titanium; selected fine twill entries specify SUS316L. Confirm the exact alloy for the chosen construction.

Process duty. Provide polymer or fluid grade, throughput, viscosity at operating temperature, pressure and allowable differential pressure. Include the contamination concern and required product quality.

Mechanical support. Show the complete layer stack, support mesh, filter dimensions, edges and sealing arrangement. For belts, state the travel direction, width, tension and equipment reference.

Cleaning and supply. State cleaning chemicals and temperature, reuse or replacement cycle, current service history, material documentation, traceability and expected consumption.

Agree the Validation Method

Glass bead testing characterises the particles that can pass through a sample. Bubble point testing uses a wetted mesh and gas pressure to assess an equivalent maximum pore size.

Agree the method, acceptance limits and test conditions before comparing ratings.

Practical trial: compare pressure loss, run duration and downstream quality at matched process conditions. Record the inspection results and any change to the filter support or cleaning method.