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we have a reciprocating compressor, consisting of 2 stages (1st stage 4 cylinders & 2nd stage 2 cylinders),
our problem is recently we are facing high temperatures in cylinder 1, but all other cylinders are having normal temperatures.
So what could be the problem of this high temp in cylinder 1 although all valves and rings were replaced with new.
Do note that cylinder 1 & 3 are connected to 1 snubber , and 2 & 4 are connected to another snubber.
 
Answers
30/05/2018 A: NS Murthy, Suez, murthy.ns.ext@suez.com
The few points that you may like to verify. a) Was there any change in lube oil quality? b) Is there any change in mol wt / composition of the gas being compressed; c) Check P2/P1 i.e. compression ratio across each stage and verify deviations, if any, d) is there any jacket cooling which has become ineffective - even any scale formation can lead to such?