Name: Dust Filter Disc & Sensor Dust Gasket
Brand: BROLERN

Dust Filter Disc & Sensor Dust Gasket

Custom to drawing or sample

Uniform pore distribution

Export packing

Manufactured in Shanghai by BROLERN with matched in-house tooling. Ratings, materials and dimensions are listed in the specification below — other geometries are available on request.

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BROLERN dust filter discs and sensor dust gaskets are precision micro-porous parts that keep particles out while letting the gas a sensor measures pass through almost unchanged. The pore size is kept uniform, and for sensor mounts the gas diffusion resistance is held low so the impact on response time stays at or below 5%.

Discs run from 1 to 200 mm (sensors mainly 3-30 mm) with thickness 0.5-5 mm and tolerance down to +/-0.05 mm; precision discs hold roundness within 0.05 mm. Mounting options include a stainless rim, adhesive backing, a press ring or ultrasonic welding, so the part drops into probes, detectors and enclosures without rework.

Key specifications

Attribute	Detail
Material	PE / PP / PTFE / copper / stainless steel / titanium
Process	Precision micro-porous moulding, uniform pore size; sensor grades keep gas diffusion resistance low (response-time impact <=5%); optional stainless rim, adhesive backing, press ring or ultrasonic weld
Filtration rating	Discs 1-100 um (common 5, 10, 20 um); sensor gaskets 1-50 um
Size range	Discs 1-200 mm (sensors 3-30 mm); thickness 0.5-5 mm (tolerance +/-0.05 mm); roundness <=0.05 mm for precision discs; gas permeability impact on sensor response <=5%
Applications	Gas / dust filtration for sensors, gas detectors (combustible-gas alarms, CO detectors), instruments, enclosures; general dust discs with stainless rim or multi-layer composite
Customization	Size, pore size, material and mounting (rim / adhesive / weld) to drawing or sample