Pre-Filters Stainless Steel IRM Filter Assembly with replaceable glass fiber filter element that accepts standard 25 m x 90 mm tapered filter thimbles. Particulate shroud to deflect large particulate and increase filter lifespan. Modular, threaded shroud design allows quick and easy replacement of the filter element. Filter retaining ring securely holds filter. Outlet has 3/8" female NPT. Optional Silcosteel coating for low NOX applications. Replaceable filter elements sold separately.

Porous Stainless Steel Filters are typically used as a pre-filter for IRM In-Stack Filtration to prevent clogging of filters downstream. Filters have over 18 square inches of a 10 micron filtering surface and can be back flushed with compressed air. Apex also offers an optional particulate shroud for extra heavy dust loadings. These filter assemblies attach to the stack end of the probe liner.

Filter Assemblies and Oven The oven can accept an 18’ long heated probe with 2" diameter sheath. The probe uses a replaceable 3/8" stainless steel liner. The oven features a lightweight construction, with a rugged strip heater, 1/2" insulation, high temperature and stainless steel hardware. Type-K thermocouple jacks are used for monitoring probe and oven temperature. A dual channel digital thermometer is recommended.

Gas Sample Filter Housings Traditional in-line gas sample filters are used to remove particulate prior to analyzing to protect your valuable equipment.