Which one better? Horizontal or vertical storage of spare rotor of compressors?
Which one better? Horizontal or vertical storage of spare rotor of compressors?
(OP)
Hi all
I want to know about advantages and disadvantages of horizontal storage of spare rotor from point of maintenance, balancing ...
Is there any preference when selecting one of these two method?
Is there any criterion about size, weight,... To choose one of these 2 methods?
I want to know about advantages and disadvantages of horizontal storage of spare rotor from point of maintenance, balancing ...
Is there any preference when selecting one of these two method?
Is there any criterion about size, weight,... To choose one of these 2 methods?





RE: Which one better? Horizontal or vertical storage of spare rotor of compressors?
As much as orientation, storage in a controlled environment is very important. Our storage canisters are all set up for nitrogen purge to prevent corrosion.
I have granted exceptions related to vertical storage in a few cases. For barrel machines with full internal bundles, the weight of the diaphragms between stages may be a problem in a vertical orientation. For a few of these, I have approved horizontal storage. These internal bundles can still be stored vertically, but the canister may need to support the diaphragms separately so that this weight does not hang on the impellers. For a bare rotor, vertical is always better. The support should be at the top so that the rotor is hanging. If this is not practical, the rotor could be supported from the bottom, in compression rather than tension. This is not preferred, but is still better than horizontal storage.
Johnny Pellin
RE: Which one better? Horizontal or vertical storage of spare rotor of compressors?
RE: Which one better? Horizontal or vertical storage of spare rotor of compressors?
RE: Which one better? Horizontal or vertical storage of spare rotor of compressors?
Doesn't this suggest room-temperature creep exists in stainless steel?
I'm pretty sure it doesn't.
RE: Which one better? Horizontal or vertical storage of spare rotor of compressors?
As it happens, a few weeks ago, we pulled out a long thin rotor for a multi-stage pump (10 stages) that had a substantial bow when it was removed from the storage canister. We mechanically straightened the rotor before installation. It is up and running well. If the bow was just a result of unevenly distributed stresses under the interference fit impellers, there is a chance it would have straightened out once it was in service. But, I could not afford to take that chance.
Johnny Pellin
RE: Which one better? Horizontal or vertical storage of spare rotor of compressors?
What's the basis of 2.25 turns per week?