Custom Knitted Wire Mesh Filter Panels for Grease and Oil Mist

Panel dimensions, layers and density

• Common width: 200–1200 mm.
• Common length: 200–1500 mm.
• Common thicknesses: 12, 20, 25, 40 and 50 mm.
• Mesh layers: single-layer and 2–4-layer combinations; other arrangements to specification.
• Density: adjusted to the specified construction and duty.

Non-standard dimensions, thicknesses, layers and density can be manufactured to drawing or sample. Oversized panels may require a joined frame; confirm the construction in advance. Common sizes are available as order options, with stock and lead time confirmed per order.

Flat and folded knitted mesh panels

Folded structures increase developed media area within a specified frame. Fold pitch, support, airflow distribution, oil loading and drainage affect operating behavior. Higher oil capacity or lower pressure drop than a flat panel is not automatically guaranteed.

Flat or folded construction can be specified for kitchen exhaust and industrial oil-mist duties. Confirm dust impact, structural support and cleaning access for the chosen shape.

Removable cores and fixed assemblies

Removable-core panel

A separate frame allows the core to be removed using the specified clips or screws. A serviceable frame may be reused with a matching replacement pad.

Fixed panel

The media is permanently fixed within the frame and cannot be separately replaced on site. A suitable metal assembly may still be cleaned as a complete unit. Replace the complete panel when damaged or unserviceable.

Installation accessories

Flat or flanged frames, mounting-hole positions and dimensions, handles, drain holes and seals can be customized. Frame materials include galvanized steel, aluminum and specified stainless steel such as 304 or 316L.

Silicone, EPDM and rubber-sponge seals are available by specification. Select seals and adhesives for the medium, temperature and cleaning chemicals. Supply can be a fully fitted panel or a bare panel for customer installation.

Airflow, pressure loss and operating temperature

Provide airflow, effective face area, contamination and temperature so the panel construction can be reviewed. Layers, density, thickness, flat/folded geometry and flow all affect pressure loss and capture. Higher density alone does not establish better performance.

Initial pressure drop, maintenance-trigger pressure drop and structural allowable differential pressure are separate requirements. Agree them per project. Oil loading, drainage, pressure-loss trend and outlet carryover should be considered together when deciding maintenance; a single pressure-drop value does not define re-entrainment.

Temperature suitability is confirmed for the complete assembly, including media, frame, joints, seals and adhesives. No universal airflow, capture efficiency, allowable differential pressure or temperature limit is stated for all panel options.

Cleaning and replacement

Washable metal mesh panels

• Controlled low-pressure water rinsing at ambient temperature.
• Warm water and a compatible neutral degreaser for oily deposits, with gentle brushing where suitable.
• Controlled reverse air cleaning as part of an appropriate cleaning procedure.
• Ultrasonic cleaning only where suitable for the complete component.

Avoid corrosive cleaning agents, open-flame heating and actions that distort fine mesh. Cleaning intervals depend on oil/dust loading and operating conditions. Inspect media, frame, supports, joints, drains and seals after cleaning; no fixed number of reuse cycles is promised.

PP and synthetic-fiber panels

Recommend gentle washing only for constructions explicitly specified as washable. Otherwise follow the agreed replacement method. The names PP or synthetic fiber alone do not establish washability. Replace media that is damaged, heavily saturated, compacted or shedding fibers.

When to replace

Replace deformed, severely corroded or damaged media and insecure frames/supports. Investigate persistent abnormal pressure drop, drainage or carryover after cleaning. Removable-core panels may accept a new pad; fixed panels are replaced as complete units.

Manufacturing inspection and optional testing

• Finished dimensions and drawing tolerances.
• Frame, welds and connection points.
• Burrs and sharp edges.
• Media type, layer arrangement and integrity.
• Core fixing and retention features.
• Handles and drain openings where included.
• Material grade and agreed material documents.

Routine orders include agreed manufacturing checks, not pressure-drop or capture-efficiency testing on every unit. Performance tests can be quoted separately. Define the specimen, airflow, contaminant, method, acceptance criteria and report scope before testing. A project test is not automatically a certification or standardized type test.

Custom panels and replacement pads

New application

Discuss the airflow, grease/oil-mist or dust loading, space, temperature and maintenance requirements. We review manufacturing options and confirm the final specification with the customer.

Manufacture to drawing

Provide frame and seal details, dimensions, media, layers, density, supports, accessories and acceptance requirements.

Reproduce from a sample

A sample or old panel helps recover geometry and construction. Used media may be contaminated or deformed; confirm uncertain material and original dimensions before manufacture.

Knitted wire mesh filter panel FAQ

Are all panel filters washable?

No. Suitable metal mesh panels can be cleaned and inspected for reuse. PP and synthetic-fiber constructions are washed only when specifically designed for it.

Can every panel accept a replacement core?

No. Removable-core frames can accept specified replacement pads. Permanently fixed assemblies require complete replacement when unserviceable.

Does a folded panel always have lower pressure drop?

No. Folding increases developed media area, but pressure loss depends on the complete geometry, support and flow conditions.

Is grease capture efficiency the same for every panel?

No universal percentage applies. Capture requirements and any performance test are agreed for the specified panel and operating conditions.

Does a kitchen grease filter provide fire protection?

Grease-capture use alone does not establish flame-arresting performance or kitchen-exhaust certification. Validate any safety or certification requirement separately.

Which knitted mesh product should I specify?

This page covers framed panels. See knitted mesh rolls for base media, compressed knitted filters for die-formed parts and demister pads for vessel/tower droplet separation.

Information for a custom panel inquiry

• Drawing, sample or old-panel photos and required quantity.
• Length, width, thickness and drawing tolerances.
• Frame, flange, mounting holes, seal and installation dimensions.
• Media, material grades, mesh layers and density.
• Flat/folded shape and removable/fixed construction.
• Support, handles, drains and flow/drainage orientation.
• Airflow and effective face area.
• Grease/oil-mist/dust characteristics and loading.
• Operating temperature and compatible cleaning method.
• Initial pressure-drop target, maintenance trigger and structural differential-pressure requirement.
• Any capture-performance test, inspection or documentation requirements.