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Tan/Tan is "tangent line to tangent line" in length; 2:1 Ellip. Heads. Compressed air enters horiz tank on top and the liquid is forced out of the bottom of the tank. Typically, a battery of compressed air cylinders with manifold/regulator provide the motive force for the discharge cycle of 5 -...

I have a 6 ft dia x 18 ft tan/tan pressure vessel containing water. I want to flow 100 gpm @ 100 psi in a 2” Sch 40 pipe attached to the tank using compressed air as the motive force. Is there a formula or handbook for calculating the volume in scfm to make this happen?

You might consider a wedge meter for your slurry service application. It is more suited to these parameters than a traditional dp device. There are several reputable supplers available. bk

As a follow up to one of the previous posters, I was told today that our AI would not approve the use of an orifice flange meter run in BEP because the ASME B16.36 standard is not referenced within the ASME B31.1 code. I have worked for two previous companies where orifice flanges have been...

I am attempting to calculate the noise level (in db) through various restrictive orifices. Can anyone provide a source, formulas or spreadsheet for same? Thanks

You may consider the use of a "high performance" flow conditioner upstream of the primary element. These devices,although somewhat expensive in pipe sizes above 24 NPS, have been quite successful in reducing the number of upstream pipe diameters for a well formed flow profile...

Testing a single orifice in an NIST certified hydraulic lab is a waste of time and money in most cases. The performance of the orifice plate will be determined based upon the lab piping into which it is installed and tested. When the orifice is subsequently installed in the field, it is rare...

Jonesey, A333 Gr 6 pipe is readily available in NPS 24" and below. I use a supplier, Radnor Alloys, out of Houston, TX. I am sure there are other viable piper suppliers. bk

the TIG anachronym stands for Tungsten Inert Gas welding (ie. an arc is struck between a tungsten electrode and the metal surface to be welded) The process can be performed with or without a filler metal. Gas shielding is required. Hope this helps. bk

Goosen, I realize this is an old thread but thought I'd offer another source of reference for this application. R.W. Miller's Flow Measurement Engineering Handbook, 2nd Ed pp. 11-5 through 11-7 discusses the Annular Orifice and gives an example. bk

Thanks for the input. It is much appreciated. bk

Gentlemen: Does anyone have any suggested handbooks, sources or equations for determining noise level (db) through restriction orifices? thanks