Critical Orifice Kit --- K-150
© 2021 Aer Sampling LLC - CA, USA
Use this to calibrate the dry gas meter of the various metering consoles.
Comes in a kit of five orifice (standard) sizes (of five different nominal flow rates)
Purpose and how to use? Relationship to other products?
Aer Sampling recommends that critical orifices be calibrated at least once a year.
Aer Sampling's critical orifices shall only be calibrated in vacuum mode (i.e. critical orifice be upstream of the vacuum pump). Results from calibration in non-vacuum modes (i.e. critical orifice is downstream of the pump; pump is "pushing" gas into the critical orifice) is not comparable.
Critical orifice has to reach critical ("sonic", "choked" velocity) conditions to be usable.
Section 16.2.2 (Critical Orifice Calibration), USEPA Method 5
Additional ordering/shipping procedures:
Avoid vibration and/or shock.
Please refer to the FAQs page for shipping and other charges.
Information presented here is subjected to Aer Sampling Group's terms and conditions.
Doc ID: AERHQWW-k-150-en
Last revised (Excluding prices): 4; 8.7.20
Previous (Obsolete) Catalog ID: PN-324, UC-OK
The following items are included. Click Catalog ID to visit individual product page.
|S/N||Catalog ID||Quantity||Item Name|
Critical Orifice Assembly, Size 400 [EACH]
Critical Orifice Assembly, Size 480 [EACH]
Critical Orifice Assembly, Size 550 [EACH]
Critical Orifice Assembly, Size 630 [EACH]
Critical Orifice Assembly, Size 730 [EACH]
|6||PN-285||1x||Box, Critical Orifice, Assembly [EACH]|