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The flow meter is a mechanical impeller style. I thank you all for your contribution, I think what I derived from these responses are that the flow change due to the pressure change does not add up and something else had to have changed to account. I will investigate the loop for changes. The...

Mike, Applying your Cv concept would yield an even worse disparity, by my understanding: Cv (825) = 825 psig/sqrt(44) = 124.37 Cv (425) = 425 psig/sqrt(29.5) = 78.25 This would be the Cv for the same, unchanging pipe circuit since the pressure difference is measured across the pipe circuit...

Thanks Mike and Snorgy, good input. The pump is a centrifugal pump and the adjusted valve is right at discharge for throttling, not a bypass (three-way). The pressure is measured on the main after the valve and the gpm is measured downstream about 40ft on the supply side (output of the pump)...

Hello all and thank you for viewing my question. We have a pump which drives a closed system of water in a 180 Degree loop to deliver hot water to various heat exchangers. The system runs in a 24 hour/day static mode and was quantified with the following measured values: Output Pressure = 59...

Hello all, We are making an interconnect application for a 7.5MW, three phase synch generator which outputs 4160vac. Our interconnect is to a rural coop line which is 69KV. The coop has requested that we specify a 10,000 KVA substation transformer which will make a 4160v Delta - 69KV Wye...

Thanks dpc, I will go that direction. Appreciate all the help!

Hi Davidbeach and thanks for the comments. Can you cite an equipment mfg and/or product designation that I could look into for this? It is interesting that you suggest the system is probably too small for a PSS, they followed the request saying that PSS may not be necessary and should be...

Hello all and thanks for your review. We have applied for a utility interconnect which will use a 3.5MVA 3 phase synchronous generator, driven by a steam turbine. A oneline diagram depicting the disconnects and protections was supplied and approved. A follow up request for our application is...

great wisdom, thanks rfus!

Thanks everyone for your contribution. The image which we intend to emboss to the cover is high contrast (sharp edge) black and white. We only want to raise the areas defined in black and are in process of making a sketch file per instructions above. I feel that we can then set its z height...

Thanks very much for the production info:Eltron, Theophilus and ctopher! I have found a software tool which will convert an image file to DXF. Would this make sense to use, then make the separate part file from this cad file. Finally, merge the plastic component CAD and new dxf logo into a...

We have a IGS cad file for a plastic cover plate component to be injection mold mfg. We also have a jpg file for logo artwork which we would like as an expression (positive) image on the plastic component. The jpg is black and white. Where the image is black, we would like raised on the...

dpc, I will try to look into the state (AZ) codes. Oddly, I also posted this question to the Mechanical power Piping forum and have email indicating replies, but the thread has gone missing and the email link return "no page available". I don't know if it was removed by a forum monitor, but I...

DPC Tracking Concentrating Solar Trough assisted by LPG. 10Kw System Interconnections are not my concern, because the system is Off Grid. I have seen small references that there are some federal regulations pertaining to the operation of steam based powerplants and am trying to due diligence...

Does anyone here know of Federal Regulations regarding the installation and operation of a small scale residential off grid steam driven powerplant? Aside from the building permits and design codes for pressure vessels, etc. I am trying to specifically learn about the existance or nonexistance...

Compositepro, I will check out a sample from mcmaster to test. Thanks for the reference.

Are your customers looking for stability, improvements, or just visibility into the process. If they seek an SPC program for improvements, is it in consistancy, quality, reliability ... ? SPC (Statistical Process Control) can be used to accomplish many different goals. Can you give more input...

Can anyone give me a best estimate on what material is used to fabricate the pneumatic air motor vane, shown in the photo attached? As can be seen, it has a slight orange color and appears to be slightly fiberous. I would like to find a material source and understand how to mold and/or machine...

MJCronin, Thanks for the advice, this is not a power application and hence is not subject to ASME B31.1, but I agree that copper pipe is not applicable for this application if it were operating under pressure. It's just hot, and well below its melting point. BTW, found an afordable graphite...

Compositepro, In the process of prototype development, however we need a solution which is cost effective and manufacturable, so that when the design transitions to production, we are not limited by an exotic solution. Thanks for your contribution