Knitted wire mesh has a unique interlocking asymmetrical wire loop structure that offers many advantages over other materials for air and liquid filtration and mist elimination or de-misting. Our knitting processes produce materials that when layered, spiral wound or compressed, create a tortuous path that is highly effective for both particle capture and the elimination of entrained materials and droplets in fluid flows, whilst exhibiting minimal pressure drop.
The flexibility (ability to be bent without breaking) and malleability (the ability to withstand plastic deformation without fracture) of our products can be designed according to customer needs. Through a careful selection of materials, mesh structure, and tooling design, we can produce mesh components in an almost limitless range of shapes including sheets (blankets), highly flexible hollow mesh tubes, and 3-dimensional rigid structures such as prisms, cubes, spheres and doughnuts, etc.
Porosity can be defined as the percentage of free (or empty) space contained in the total volume of a given structure. The types of materials and manufacturing processes used in the production of our knitted mesh components allow the porosity to be almost infinitely controlled from almost zero to >98% void volume. This feature also facilitates the control of pore size and permeability levels allowing engineers to design products of varying strength and densities for use in filtration and other applications where the control of fluid or solids flow is critical.
Resilience can be defined as the ability of a material to absorb energy when deformed and to release that energy on unloading. The feature is particularly beneficial in applications such as seals (often incorporating resilient cores), gaskets and vibration isolators for use in both high and low temperature environments. Our engineers can work with customers to select the materials and manufacturing methods required to configure a product that will perform to the most exacting specifications.
Materials can be selected and processed, in any of a huge number of possible variants, to produce knitted mesh components that will withstand the conditions experienced in the most arduous of operational environments. Corrosion resistance and fatigue tests at up to 1,000°C can be conducted on-site with products typically being used in aerospace, automotive, refractory, cryogenic and marine environments.
High Surface Area
Knitted mesh can be processed from a wide variety of materials to produce densely packed components with high surface area per unit weight or volume. Surface areas of >30,000 m2 per m3 of compressed material can be achieved which is equivalent to >5 m2 per kg of stainless steel. In cost terms this feature of knitted mesh compares very favourably to other technologies and is utilised in applications such as catalyst substrates or where rapid heat transfer from a fluid is required.
By careful selection of wire type, diameter, density and shape, it is possible to overcome the challenging filtration problems that other materials find difficult to handle. We are able to knit mesh from any metal, mineral or man-made filament and yarn.
The resulting mesh can then be processed further into a wide variety of forms including: mesh rolls, shaped and layered pads, framed filters and compressed elements, that offer a filter solution for virtually any application or environmental condition.
The flexibility and resilience of knitted mesh enables it to withstand thermal shock and vibration without fracturing. This provides considerable advantages over paper and sintered filters and permits a tight interference fit within housings without the need for close tolerance machining.
Compressed elements exhibiting minimal pressure drop and excellent post-compression recovery characteristics can be manufactured cost-effectively due to the relatively low tooling costs associated with knitted mesh products.
Thermal & Shock Resistance In Wire Mesh Filters
The flexibility of knitted mesh enables the material to withstand thermal shock and vibration without breaking up. This provides considerable advantages over paper and sintered filters and also permits a tight interference fit within housings without machining to close tolerances. Low-cost tooling enables the production of compressed elements that give a minimal pressure drop and also excellent recovery characteristics after compression.
Features Of Knitted Mesh
Excellent filtration capability
Available in numerous metallic/non-metallic forms
Can withstand temperatures in excess of 1000°C
Low-cost manufacture using state-of-the-art knitting machinery
Great for mechanical strength, good surface stability and resistance to thermal creep
Elmac Technologies Flame Arrestor
Elmac Technologies is a group company of KnitMesh Technologies and have their own dedicated manufacturing facility for flame arresters and explosion protection equipment. Elmac Technologies can supply a wide range of low pressure venting and tank storage safety equipment, please visit Elmac’s website elmactechnologies.com
Grease filters are used in food preparation and cooking equipment to remove grease & cooking oils from air exhaust vents and vapour extraction within catering establishments.
Available in low cost galvanised steel or long-life stainless steel, our knitted wire mesh grease filters are preferred by many users over more expensive alternatives.
Air Filtration System
Meeting the latest environmental standards, KnitMesh Technologies produce a range of knitted wire mesh air filtration systems including air filters, separator elements and breathers for numerous industrial & automotive applications.
Knitted wire mesh has a unique interlocking asymmetrical wire loop structure creating a tortuous path that is highly effective for particle capture and elimination of entrained materials & droplets in air and vapour flows.