Compressor, no teardown: reached working pressure, pump-up got faster

OJSC Stavropolproektstroy, SMU-2 · approved by: chief engineer V. A. Davydov · commission: lead mechanic, head of SMU-2, works superintendent

Stavropol Krai, Russia · treatment from 15 Feb 2002 · control measurement 9 Apr 2002

PRODUCTXADO gel for compressors and bearingsXADO RVS · three stages with rising concentration in the lubrication system · 18 ml consumed

TREATED UNITCompressor with receivercompressor cylinders · lubrication system · no teardown, under normal service operation

DOCUMENT TYPEReport on the results of
compressor treatment, 9 April 2002

Key results

↑6kgf/cm²

safety valve trip pressure, not reached → 6 kgf/cm² in 6 min

↓33s

time to build 5 kgf/cm² in the receiver, 4 min 30 s → 3 min 57 s

EQUIPMENT	CONDITION AT START OF WORK	WHAT WAS MEASURED
Compressor with receiver,<br/>SMU-2 site	Pressure of 6 kgf/cm² was not reached; build-up to 5 kgf/cm² — 4 min 30 s; air leak through the shut-off valve	Pressure build-up time in the receiver; reaching the safety valve trip threshold

Receiver pressure build-up — before and after treatment

PARAMETER	BEFORE TREATMENT	AFTER TREATMENT
Time to build 5 kgf/cm²	4 min 30 s	3 min 57 s
Safety valve trip pressure 6 kgf/cm²	not reached	reached in 6 min
Air leak through the shut-off valve	recorded	still present, not eliminated

Measurements taken on the fully assembled compressor under normal service operation; 6 kgf/cm² is the trip threshold of the standard safety valve.

Commission's conclusion

The commission of OJSC Stavropolproektstroy recorded in the report: “The results obtained give grounds to state that, as a result of the repair-and-restoration measures based on XADO technology, the compressor output increased by 12 %, which indicates restoration of the compressor cylinders and, accordingly, a reduction in electricity consumption.” Before treatment the compressor did not reach the safety valve trip pressure of 6 kgf/cm² at all — after three treatment stages it reaches that threshold in 6 min, while the air leak through the shut-off valve was not addressed during the work and was present in both measurements. Time to build 5 kgf/cm² — 4 min 30 s → 3 min 57 s. The unit was never opened up and kept working on site.

The results relate to the compressor unit with receiver at the SMU-2 site of OJSC Stavropolproektstroy; on other units and under different operating conditions the figures may differ. RVS is an obsolete XADO designation, the zero-generation compounds; the current product generation is revitalizants. The treatment was performed by a XADO technology distributor. The original report is published in full and available for download.

Current equivalent

Revitalizant gel for compressors and bearings →

Piston, screw and centrifugal compressors; rolling and sliding bearings running in an oil bath; machine-tool spindle units and slideways.

How such units are treated: Compressor

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