Quality Instruments, Spare Parts, Service & Support from your Diluting Sampler Specialists at ASI.

Experience and Expertise from Hundreds of Reconditioned and Repaired CEMS Dilution Probes.

Fast and Consistent Turnaround Times for your Serviced Equipment. BMP: Basic Monitoring Probe.


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Sample Diluting Instruments
    In-Situ Dilution Probes
    Diluting Modules
    OEM Diluters

Critical Orifices
Pyrex® Glass Critical Orifices
    Monel® Critical Orifices
    Quartz Critical Orifices
    OEM Production

Dilution Instrument Services
    In-Situ Dilution Probe Services
    Out-Of-Stack Probe Services
    Critical Orifice Services

In-Situ Dilution Probe Heaters
Complete Heater Assemblies
Stack-Tester Version
C22 Alloy & Halar Series

Extension Pipe Assemblies
    In-situ Probe Extensions
    Custom Weldments

Spare Parts and Consumables
    In-Situ Dilution Probe Parts
    OOS Diluting Sampler Parts
    Obsolete Probe Heater Parts
    Custom Manufactured Parts

Alpha Suite, Inc. (ASI) was originally formed with the primary focus of providing Integrators and End-Users of the EPM Environmental Dilution Probes (Diluting Samplers) a source for service that is experienced, reliable and consistent. ASI's knowledge base includes the experience and expertise from literally hundreds of reconditioned and repaired dilution probes and related components utilized in smoke stack or process Continuous Emissions Monitoring Systems (CEMS).

ASI has since expanded to offer the service of supplying many of the critical replacement parts and components required for existing dilution probes.

Presently, ASI not only continues the support of the old instruments, but also develops and supplies new dilution instrumentation; Diluting Modules, In-situ Dilution Probes, In-situ Dilution Probe Heaters, In-situ Dilution Probe Extension Assemblies, Critical Orifices (Sonic Orifices); Glass Orifices, Quartz Orifices & Monel® Orifices. ASI also designs and develops custom components for integrator & OEM applications.

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We have a wide range of standard Critical Orifice (sonic orifice) styles and flows to suit your sampling needs. Critical Orifice styles for a variety of applications including in-situ and out-of-stack sample diluting probes. Retrofits to your EPM Environmental critical orifices available. Click Here for EPM critical orifice part numbers.

Standard Materials include Glass, Quartz and Monel®. Standard Max. Temperatures up to 750°F (400°C), High Temperature Critical Orifices (Sonic Orifices) are available for your applications up to 1110°F (600°C).

ASI is a proven leader for Quality Parts and Best Selection of critical orifice flows and materials you will find for your dilution systems. For our OEM Customers, we offer custom designed critical orifices to meet your specific needs.

For more information on the Critical Orifices we produce Click Here

Alpha Suite Inc.  2017