Gasket for Top of PM2.5 Bug Screen SKU: TE-6001-2.5-3

The TE-6001-2.5-3 is a replacement gasket designed specifically for sealing the top of the bug screen assembly in PM2.5 size selective inlets. This critical sealing component ensures proper airflow isolation and maintains EPA-compliant sampling performance in high volume PM2.5 particulate monitoring systems.

Function and Performance

The gasket creates an airtight seal between the TE-6001-2.5-4 Bug Screen and the top assembly components of the PM2.5 inlet. Proper sealing prevents ambient air bypass that could compromise particulate collection efficiency and invalidate sampling results. The gasket maintains its seal integrity under varying atmospheric conditions and temperature fluctuations typical of outdoor monitoring installations.

PM2.5 Inlet System Role

The PM2.5 size selective inlet consists of 40 stainless steel nozzles that allow only 2.5µm particulates to get deposited on the filter. The bug screen assembly, secured by this gasket, protects the precision nozzles from insect intrusion while allowing proper airflow patterns. PM2.5 samplers collect particulates at a flow rate of 40 cfm, with larger particulates trapped inside the inlet as smaller PM2.5 particulates continue through to the 8" x 10" quartz filter.

Compatibility

This gasket is compatible with all Tisch Environmental PM2.5 size selective inlet assemblies including:

• TE-6001-2.5-1 Top Plate for PM2.5 Inlet
• TE-6001-2.5-4 Bug Screen for PM2.5 Inlet
• TE-6001-2.5-5 Screen and Nozzle Plate Adapter
• Complete PM2.5 high volume air sampling systems

Maintenance and Installation

Replace the gasket during routine inlet maintenance or when visual inspection reveals cracking, hardening, or compression set. Tisch Environmental recommends inspecting gaskets quarterly and replacing annually or as needed to maintain proper seal integrity. During installation, ensure the gasket is properly seated in its groove and that all fasteners are tightened to specification to prevent air leaks.

Applications

Essential for EPA-compliant PM2.5 monitoring programs, ambient air quality assessments, and institutional research studies. PM2.5 particulates are particularly hazardous as they can penetrate lungs during respiration and be absorbed into the bloodstream, making accurate collection critical for public health monitoring and regulatory compliance.