@tosif

Dry gas seals work on the principle of centrifugal force. Sealing gas is pressurized with the rotation of very tiny impellers of dry gas seal.

Below are some salient benefits of Dry gas seals

1. They are more effective for sealing than the conventional floating oil seals.
2. No seal oil ...

Good to hear this

What sort of test are you planning to?
1. You can change the lube oil pressure and temperature and see its effect.
2. See if you can clean the motor fan.
3. See if you can vary the number of drops of lubricator in the stage.
4. Increase in gas pressure can also be useful.
Usually high axial ...

Can you please send me the cross phase data of compressor across coupling

Never seen such spectrum on a reciprocating compressor. Anyhow spectrum indicates some looseness in the system. Can you send me the peakview data captured with your CSi to determine the effect of impacting in the system.

Can anybody tell how to determine from the vibration spectrum that the fault is looseness (structure or part)?

Can anybody explain what is the purpose of grounding brushes on Turbomachinery?

It all depends upon how much critical is your service. if you cannot afford a shutdown of your machine due to leaking cooler then you should have a spare cooler

Below are the chrats for selection of antifriction bearings. Bearing number alongwith its suffixes provide the complete informaion of the bearing. Bearing number and its suffixes for different bearing brands like SKF, FAG and NTN are also explained in these charts .