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What are the constraints to putting a NEMA rating on an enclosure? Specifically, I am contemplating having an enclosure custom designed or modified for an existing product. The purpose of the change is to improve/upgrade the protection to allow NEMA rating. I have no trouble reading and...

I have seen some references to this subject in this forum, so I am posting here. If another forum is a better fit, please advise. I am looking for information on the fitting style called "Autoclave" or "API." I have a pretty good idea of what the general design looks like...

Can anyone tell me what an ISO 7 R thread is? I'm thinking that it's just a different name for a BSPT. But I need to be sure. Thanks in advance. Steve the dumb question guy.

The application is a thermowell (small, solid metal, pressure containing. Cost is always an issue, of course, but it is not the overriding issue, since the component is small. "Small" being a couple of metres long, a few inches wide. The service environment is 30% HCL with Aluminum...

Thanks for the help. This hasn't been a life-threatening problem, but it sure has been a nagging pain in the neck, and if this solves it.... sh

Thanks. The water is required because the freezing point of a glycerin water mix is lower than that of either pure glycerin or pure water. (Go figure.) So we have a 2:1 mix. Can you suggest a corrosion inhibitor for this application? I am off to search the web for such, but if you have...

I have a product with some small aluminum components - specifically a gauge with aluminum pointer and adjustment mechanism. The gauge is fluid filled, and recently we have been required to take the fluid fill from glycerine to a mix of glycerine and water. Over time, some of the pointers are...

Anyone got a pointer to a basic level spreadsheet for doing gauge R&R? I don't need a tremendous level of power in this, and I am willing to adapt it as necessary to my purposes. Mostly what I want, though, is to know whether the variation that I am measuring is a function of the measuring...

I need to measure the temperature of a liquid in a pipe. Assume turbulent flow, temperature slightly elevated over ambient. Is there an accepted standard for the insertion depth into the pipe of a thermometer bulb (or other temp sensor)? What's left of my common sense tells me that any reading...

I am using a water / glycerine mixture in an application with visual exposure (filled gauges). I have seen discoloration of this mixture from time to time, and I need to start tracing down how and when this discoloration happens. I am looking for a method of measuring coloration of the mixture...