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Big Inch is right, however you never state what temperature it will be operating at, just that the delta temperature will be zero. In cold start/hot start (depending on your application), it may need to be examined.

I agree with chicopee, we use wicker brooms. They prove to be a lot cheaper than thermal imaging cameras.

Water hammer can also occur from pulsations is flow, this is especially true at higher velocities. The sudden drop in pressure shouldn't have it creating water hammer, especially since the equillibrium pressure is 1barg.

That's quite possible. Entrained vapours have a tendency to create havoc on centrifugal pumps when not sized specifically for the liquid in the application. And having a very viscous liquid means a deaerator typically won't work. We have one on a type of a liquid at 1.25 sg and 89 cp. if...

I agree with pumps only, the only thing I will add is to check the motor fan. Also, like he said check rotation, its very possible that the phases got messed up when reinstalling the pump. If its heat and its tripping due to heat and not overcurrent directly at the breaker, it could have been...

That's true, we try to stay away from y type strainers except on steam condensate and water applications that pose no chemical health/environment threat for routine blowdown (hourly intervals)

You can always go with the smaller pipe size and insert a psv if applicable. If you want to ensure no steam reaches the condensate tank you could also have a pressure control loop on the condensate pipe that can open a valve venting to atmosphere, and simultaneously close a vlave down stream of...

It may very well be the strainer, I have had problem in the past with improperly installed vortex breakers due to the excess drag forces and low pressure pocket being "pulled". (it was also an aerated liquid at 1.3 sg, fairly viscous) Does it sound like cavitation? Is the discharge pressure...

I had done research in the past on seawater biofouling of pipes, most of my favorite tabs relating to it were deleted but I was able to find this one. May be of some use www.desline.com/articoli/6246.pdf

Thanks for the tips unclesyd, we use a polymer upstream that does not act well with direct steam injection (tetra alkyl ammonium chloride). However, we do have phosphoric acid available to use that we could react off using lime sucrate to form calcium phosphate. Thanks for the tip. If that...

We have it piped to be able to, but it seems to not be really effective, velocities in the HX are relatively low (pump is located downstream and at a decreased elevation also). I also would like to do a chemical clean while in service if possible. Something to add to my product stream, but I...

Hi all, we have a heat exchanger, shell and tube double pass, no baffles, in which we can only shut it down every 4 months to hydroblast the tube sheet. The differential pressures rise to elevated pressures higher than we like to see after about a month. We want to use a chemical solvant but...

I didn't not mean to start a debacle, sorry for bringing up a moot point, the fact that not all fluids are compressible in certain situations does not pertain to this topic and I should not have brought it up. Thanks for the links ione and biginch.

To test what?

I agree with ione and biginch, either an expansion tank or modified "seal pot" type device(with vent back to supply). However, biginch, although fluids are compressible, I have to disagree with "all fluids" being compressible. Liquids are only compressible to the absolute slightest degree...

By reciprocating pump are you referring to positive displacement pumps in general? Why are you set on reciprocating instead of say, screw pump? Please inform us of more of the details, such as what you are trying to pump, known viscosity of fluid, pressure, temperture, and flow rate

Probably a transformer problem. You can rule out the secondary side as previously stated unless a fault occurred across the switchgear(highly unlikely). If there is no load, the fuses would have no purpose if there is no thru put(unless the previously stated scenario had occurred). Although I...

Biginch is correct, if the velocities are high, the pressures will be low, and sudden decreases in pressure of gases at high velocity(two phase or not)result in temperture drop.