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Hi all, Thank you for the responses. Specifics are not all that important at this stage as we can design what the thermowell will be mounted into to meet the needs of what is available without any major setbacks. As for the process fluid it is crude oil, and 3-5 gpm in a 1" diameter pipe...

Hi all, I need to measure the temperature of a process fluid that is under 15,000psi and 400°F. I am looking at using a thermocouple in a thermowell, but I am having trouble finding something that is rated to that high of pressure. Any suggestions? I am not too picky for connections as we can...

Or I should say "A"

MikeHolloran, I wise man you are.

Awesome! Thank you!

Hi all, I am back with another hot oil question... I am looking for a pump that can handle the following: 1. Up to 200°C (could be a little flexible on this) 2. 2800-3000 psi output pressure 3. 3.0 gpm @ 1750 rpm 4. Ideally be able to run off a 5 hp motor @ 1750 rpm 5. Be able to pump from...

Compositepro, I guess you could say that it is a oil heat application (sorry, I have to be vague). I would love to just use a expansion tank, but I can't have the head space where volatiles can boil off and get trapped (I think the volatiles would still boil off in a nitrogen atmosphere?). For...

SceneryDriver, It matters as the viscosity changes if I lose volatiles and the system is very sensitive to a increase in viscosity. Putting a chiller on the accumulator would help by causing the volatiles to condense, but then I need to ensure that they enter back into the flow.

Hi all, I need help choosing a accumulator or something else appropriate for my task. I have a pumping system with approximately 5 gallons of oil in it. It is a closed system. When I run the machine the temperature goes up (200°C system max) and as the temp increases so does the pressure due...

I have not contacted the manufacturer as it is from a research project. I have seen other pumps with what I am looking for. I think I would need to buy a full pump assembly and just remove the bearing assembly from the housing. As I don;t think you can just buy the bearing assembly by...

kcj, I don't think so but that doesn't mean it couldn't be. Why do you think it might be?

Compositepro, That is exactly what I am looking for. I know that in the picture above the black bearing assembly was not part of the pump (the silver part) originally. As the silver part is a custom job to test impeller designs. The bearing assembly looks like it is purchased rather than custom...

I need to figure out what is in the picture highlighted by the red box. I think it is some sore of bearing assembly to support a rotor, but it looks pre-manufactured (whereas the silver part to the right is custom made). Any ideas as to what it is called? Where I can buy them? Thank you all...

tbuelna, I agree with you that the chemical process sounds like it is difficult to control, but due to powers out of my control it sounds like we are going to do the chem etch anyways. So I guess we will see how it goes.....

tbuelna, I am not exactly sure what "plateau honing" is but I will do my research as it sounds like what I am really looking for. One of my colleagues has recommended that we chemically etch the surface to get the desired finish. What are your thoughts on this process?

mrfailure, Maybe I shouldn't have said that shot peening would increase strength, but rather reduce residual stress from the manufacturing processes?

EdStainless, Loctite is not a bad idea, but due to the environment (completely submerged in water that can get rather hot) that depending on loctite to hold might be risky. I would like to try using paper like you suggested, and I think we might be okay as we have a large range to fall within...

EdStainless, I can't remove that much material otherwise I will be out of spec for the keyless bushing in the shaft diameter tolerance. I wouldn't be comfortable removing more than .001-.002". It is a 1.500" shaft. I am not sure on the casehardeing method, as it was purchased from McMaster...

Hi all, We have a piece of test equipment that has a hardened 440C stainless steel shaft with a 12 rms micron finish and a case hardness (about 0.080 depth) of about Rockwell C50-55. I need to bring the surface finish to somewhere within 35-125 rms microns to meet the spec of a keyless bushing...

TGS4, That is what we have done, but I have been assigned to look into evaluating how much is consumed by ductile tearing.