SPEC SHEET: HPD III High Pressure Diffuser

HPD III High Pressure Diffuser Specifications Sheet

HPD III High Pressure Diffuser

Sampling gases at pressures greater than sea level, such as 25 – 100 psi, is challenging for particle counters. Connecting pressurized air or gas to a particle counter can defeat its flowmetering system and possibly damage the instrument.

High Pressure Diffusers (HPDs) have been developed to address these issues. HPDs reduce the pressure of the gas to about that of sea level by allowing some of the air/gas to diffuse out of the system and allow the particle counter’s flow-metering system to function as designed.

The HPD III Aerosol Monitoring Accessory is compatible with non-toxic, non-flammable gases such as Clean Dry Air (CDA), Argon, and Nitrogen. The higher pressure gases are reduced to a level acceptable to particle counters designed to operate at atmospheric pressure.

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