hi-q ILFH-20 Filter

HI-Q Environmental Products Company (HI-Q) is a leading manufacturer of Air Sampling & Radiation Monitoring Equipment, Systems and Services since 1973. We are an ISO-9001:2015 Certified manufacturer of continuous duty high & low volume air samplers, radiation monitoring systems, air flow calibrators, radioiodine sampling cartridges, collection filter paper and both paper-only or combination style filter holders. Along with the ability to design complete, turn-key, stack and fume hood sampling system, HI-Q also has the unique capability to perform qualification testing on ducts and vent stacks as required by ANSI/HPS N13.1-1969/1999/2011/2021.
HI-Q is the Exclusive Representative for VF, a.s. in the marketing and sales of VF’s health physics and radiation monitoring equipment in the United States. These products are targeted toward government and commercial nuclear facilities throughout the United States.Product Highlights
• Customizable – Simply Replace “-XX” with the Flow Range & Units of Your Choice.
• Dependable – Direct, Reliable Readings Certified & Traceable to NIST.
• Quick – Standard Quick Disconnect Fitting for Airtight Setups & Immediate Flow Readings.
• Durable -Rugged Construction Built for Heavy-Duty Use in All Environments.
Air Flow Measurement Devices
HI-Q Environmental Products Company’s steel constructed, two-component polyurethane painted Air Flow Calibrator (AFC) housings incorporate a precision machined venturi tube to create a pressure differential across a fixed orifice. By varying the air flow velocities, the pressure differentials are measured & recorded against a laminar flow element whose calibration is certified and traceable to the National Institute of Standards and Technology (N.I.S.T.). The AFC’s overall internal simplicity of operation reduces the frequency of re-calibration to once or twice per year depending on (individual) regulatory protocol. AFC-XX series air flow calibrators are intended to be used open to air.
AFC-Series Flow Ranges
By varying the orifice size and the chosen Magnehelic® (Standard AFC) or differential pressure sensor/transmitter (AFC-DIGITAL), HI-Q can fabricate calibrators in almost any desired flow range. Unlike other manufacturers, HI-Q does not use pre-silk screened dial faces in their analog AFC units. HI-Q individually hand marks each AFC dial face.
Choosing an AFC-Series Flow Range
Flow vs. Pressure Differential produces a logarithmic (non-linear) reading. On a Magnehelic® gage the spacing between the numbers on the lower end of the scale will be close together and further apart on the upper end of the scale. For the greatest visual accuracy, HI-Q suggests, ordering a unit with the lowest upper range as practical (i.e.: don’t select an AFC-8 if your pump only draws a maximum of 4 CFM).