have a wide range of standard Critical
Orifice (sonic orifice) styles and flows
to suit your diluting application. Critical Orifice styles
for use with your in-situ and out-of-stack diluting sample
probes, our ESP direct extractive probes, inertial filter
diluting probes, laboratory diluters and more.
Materials include Glass, Quartz, Monel-400®, and Stainless
316. Standard Max. Temperatures up to 750°F (400°C),
High Temperature Critical Orifices (Sonic Orifices) are
available for your applications up to 1000°F (540°C).
our OEM Customers, we
offer custom designed critical orifices to meet your specific
ASI is a proven leader for Quality Parts and Best
Selection of critical orifice flows and materials
you will find for your gas sampling instruments and systems.