Acceleration Nozzle Plate Gasket SKU: TE-6001-4

The TE-6001-4 Acceleration Nozzle Plate Gasket provides critical sealing for the acceleration nozzle plate assembly in PM10 high volume air samplers. This gasket ensures leak-tight operation where ambient air is evacuated through nine acceleration nozzles at the required flow rate of 1.13 cubic meters per minute (40 CFM), maintaining the precise airflow characteristics essential for accurate PM10 particle size separation.

Function and Design

The acceleration nozzles have critical diameters designed to provide the necessary velocity changes for correct particle size fractionation within the impaction chamber. The TE-6001-4 gasket seals the interface between the nozzle plate and adjacent components, preventing air leaks that would compromise the sampler's ability to achieve the required particle acceleration velocities needed for particles greater than 10 micrometers to impact onto the greased impaction plate.

Proper sealing at this critical junction ensures that particles smaller than 10 microns are carried through the impaction chamber at velocities slow enough to minimize particle reentrainment, allowing them to exit through the vent tubes and be collected on the standard 8" × 10" filter paper.

Compatibility

The TE-6001-4 gasket is designed for use with:

• TE-6001-2 Acceleration Nozzle Plate with Nozzles
• PM10 high volume air samplers equipped with size selective inlets
• Federal reference method (FRM) samplers operating under 40 CFR Part 50, Appendix J guidelines
• Both mass flow controlled (MFC) and volumetric flow controlled (VFC) PM10 samplers

Installation and Maintenance

Inspect the TE-6001-4 gasket during routine maintenance intervals, typically every 6 months or when accessing the PM10 inlet for cleaning. Replace the gasket if it shows signs of cracking, permanent deformation, or contamination that could affect sealing performance. Clean mating surfaces thoroughly before installing a new gasket to ensure proper seal integrity.

Proper installation requires careful alignment to prevent pinching or distortion of the gasket material. The gasket works in conjunction with the wing nut-screw-pin assembly system to ensure no air leakage at this critical sealing point.

EPA Compliance Applications

This gasket supports compliance with 40 CFR Part 50, Appendix J reference method requirements for PM10 ambient air monitoring. Maintaining proper sealing ensures the sampler operates as a federal reference method (FRM) instrument designed to collect ambient particulate matter with an aerodynamic diameter of 10µm or less using size selective inlet separation.