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Particle Measuring Systems
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Specification 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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5475 Airport Blvd.
Boulder, CO 80301

T. +1 303-443-7100
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Keep in touch! Receive industry news from us:

Products

  • Aerosol Particle Counters
  • Liquid Particle Counters
  • Microbial Samplers
  • BioCapt® Certificate of Analysis (CofA)
  • Compressed Gas Particle Counters
  • Molecular Monitors
  • Software / Data Management

Industries

  • Pharma
  • Semi
  • Photonics & Optics
  • Aerospace
  • Particle Measurement for Industrial Manufacturing

Applications

  • ISO 14644
  • ISO 21501-4
  • USP 797
  • Meet USP<788> Particulate Matter in Injections
  • Parts Cleanliness Testing
  • Annex 1 Environmental Monitoring Solutions for Your Contamination Control
  • 21CFR 11

Service & Support

  • Advisory Service
  • Product Calibration and Service
  • Customer Service

Education and Training

  • PMS™ Knowledge Center
  • Particle College
  • Software / Data Management
  • Blog

About Us

  • Contact Particle Measuring Systems
  • Why Choose Particle Measuring Systems
  • Particle Measuring Systems’ Executive Team
  • Careers
  • Corporate Responsibility, Sustainability, Health & Safety
  • COBE
  • Parent Company
  • Press Releases
  • ISO Registrations & Quality Policy
  • Trademarks & Patents
  • Anti-Slavery
  • Export Compliance

Particle Measuring Systems- USA

Corporate Headquarters
5475 Airport Blvd.
Boulder, CO 80301

T. +1 303-443-7100
F. +1 303-440-1090
E. [email protected]

Keep in touch! Receive industry news from us:

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