SKU: 97855834032

Critical Orifice Assembly

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Description

Critical Orifice AssemblyMeets or exceeds the following methods laws requirements: US EPA Method 5: Section 16. 2. 1. 1 (Selection of Critical Orifices) Section 16. 2. 2 (Critical Orifice Calibration) Product Description Critical Orifice is used to calibrate the dry gas meter (DGM) of various metering consoles. This calibration instrument is approved by the US EPA as calibration standard for calibrating a dry gas meter, in place of the wet test meter stated in Section 16. 1

 Meets or exceeds the following methods/laws/requirements:

 

US EPA Method 5:

  • Section 16.2.1.1 (Selection of Critical Orifices)
  • Section 16.2.2 (Critical Orifice Calibration)


Product Description

Critical Orifice is used to calibrate the dry gas meter (DGM) of various metering consoles.

This calibration instrument is approved by the US EPA as calibration standard for calibrating a dry gas meter, in place of the wet test meter stated in Section 16.1 of the US EPA Method 5, provided that the critical orifices are selected, calibrated, and used in accordance with the instructions included in Section 16.2.1 of the US EPA Method 5.


This product connects to the following (non-exhaustive) list of products from Aer Sampling:

  1. Aer Sampling Metering Consoles (sample inlet)
Other Applicable Documents:
N.A.

 

Product Specifications

Connection: 1/2-inch quick connect

Material: Brass with Ruby orifice

Sizes (nominal):

Catalog ID

Size

Orifice diameter

Choked flow rate
inch mm cfm LPM
PN-738 400
 0.0400 1.0160 0.31 8.79
PN-739 480
 0.0480 1.2192 0.46 12.97
PN-740 550 0.0550 1.3970 0.60 17.08
PN-741 630 0.0630 1.6002 0.80 22.61
PN-742 730 0.0730 1.8542 1.09 30.94


Weight (Gravitational): 0.29 lbs / 0.13 kg

Packing Dimensions (Length x Width x Height):
English (inch): 3.1 x 1.0 x 0.9
Metric (cm): 7.9 x 2.5 x 2.4


Other Information

Avoid vibration and/or shock.
Consider buying a carrying case, PN-285 --- Empty Critical Orifice Box for storage and transportation.


Calibration of Critical Orifice 

This critical orifice does not come calibrated. For factory calibration before your first use, please add PN-773 --- Calibration of Critical Orifice into your cart before checking out (for online/website order) or please contact our Regional Sales Office (for offline order).

A calibration certificate will be issued:

  • The critical orifices are calibrated according to US EPA Method 5 (US CFR Title 40, Part 60, Appendix A, Test Method 5) Section 16.2.2, using a dry gas meter calibrated according to US EPA Method 5, Section 10.3, and other reference instruments with calibrations traceable to the International System of Units (SI).

Aer Sampling recommends calibrating critical orifices 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) are not comparable. Critical orifice must reach critical conditions to be usable.


Manufacturing Warranty and Technical Support

 

All our products come with a one-year warranty against manufacturing defects and one-month technical support for free. Please refer to our Frequently Asked Questions (FAQs) page for more details.



-----

Information presented here is subjected to Aer Sampling Group's terms and conditions.
In case of discrepancy between English version and the non-English version, the English version shall prevail.
Doc ID: AERHQWW-pn-738-en
Last revised (Excluding prices): 1; 08.22.22
Obsolete Catalog ID: -

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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SKU: 97855834032

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I have been using this leopard print blanket on both the bed and the couch, and it hits a really nice balance between style, size, and comfort. I went with the larger twin style size instead of a small throw, and that was the right call; it is big enough to fully cover me when I am lying on the couch and works much better for two people sitting side by side than a standard throw that always feels a bit cramped. It also looks great draped across the end of a bed or over the back of a sofa, so it doubles as decor. The leopard pattern is genuinely attractive in person. Up close you can see that it is a printed, short shag/flannel style rather than true faux fur, but the brown leopard version still reads more realistic and intentional than a lot of loud, pink “leopard” prints. The colors are vibrant and have a nice pop without being tacky, so it fits easily into different rooms and color schemes as a fun accent. From a distance, it gives a soft, faux fur vibe that looks more expensive than it is. Comfort wise, it is very soft and pleasant to snuggle with. One side feels just slightly softer than the other, but both are smooth and cozy against the skin. It is a single layer blanket with rolled and stitched edges, so it is not a super thick winter comforter, but that actually makes it more versatile. It provides enough warmth to feel comforting without being overly hot, which makes it a nice year round piece: cozy in cooler weather with an extra layer, and just right on its own in milder seasons. The blanket is also lightweight, which makes it easy to move around the house or pack for travel, while still feeling substantial enough that it does not come across as flimsy. It has held up well so far, and the overall quality feels good for the price, especially given the larger size. If you love animal prints and want something that works as both decor and a genuinely comfy blanket to curl up with, this one is easy to recommend. Pros: Large twin style size is big enough to fully cover an adult or share on the couch Soft, plush flannel style fabric that feels cozy against the skin Lightweight but still warm enough to be comfortable year round Brown leopard print looks stylish and more realistic than many novelty patterns Colors are vibrant and work well with a variety of room styles and palettes Edges are neatly rolled and stitched, giving it a clean finished look Cons: Single layer construction means it is not as heavy or insulating as a thick winter blanket
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