IE A085UMG LVIVTRANSGAZ · UHERSKO BCS · 12.03.2002
Gas-engine compressor 10GKNA: power end keeps running no overhaul, no repair
The piston-cylinder group remained low-wear, an overhaul of the power section was deemed unnecessary. 2,000 engine hours — added to the previous overhaul interval under the same contractor warranty (2002).
UMG Lvivtransgazapproved by the UMG chief engineer; signed by customer and contractor, stamped
Key result
| EQUIPMENT | OPERATION AFTER WORK | WHAT WAS MEASURED |
|---|---|---|
| Gas-engine compressor 10 GKNA, station No. 4, Uhersko BCS | 1831 engine-hours | Geometry of power cylinders No. 1 and No. 7, condition of pistons and compression rings |
Power end of the compressor per the measurement of 12.03.2002
| COMPONENT | WHAT WAS RECORDED |
|---|---|
| Cylinder-piston group | Wear no more than 5–7 % — per the measurement of power cylinders No. 1 and No. 7 |
| Power cylinders No. 1 and No. 7 | Geometry compared with the measurements taken before the repair-and-restoration work |
| Piston of power cylinder No. 1 | Requires replacement: mechanical failure of the first compression ring and of the land between the first and second rings |
| Compressor in service | No characteristic knocking was observed, despite the broken ring and land |
The power cylinder measurement report and the comparison table are issued as a separate annex to the act.
Decision on servicing the power end
| ITEM | CONTENT |
|---|---|
| Next scheduled TO-3 service | Inspection and repair of the power end not to be carried out — recommendation of the technical department of VV Tekhnologiya LLC |
| Non-stop operation | 6000 engine-hours for the compressor at station No. 4 — warranty of VV Tekhnologiya LLC |
| Overhaul interval | +2000 engine-hours over the previous interval under the same warranty |
The recommendation and the warranty come from the contractor; the act was approved by the chief engineer of UMG Lvivtransgaz and signed on the customer's side.
Conclusions of the act
Current equivalent
- Revitalizant gel for diesel enginesDiesel engines
- Revitalizant gel for petrol enginesPetrol engines
- Revitalizant gel for cylinder restorationEngine cylinders, deep wear
How such units are treated:
Limits of this report: The results refer to gas-engine compressor 10 GKNA, station No. 4, at the Uhersko booster compressor station of UMG Lvivtransgaz; on other units and under other operating modes the figures may differ. The repair-and-restoration work was performed by VV Tekhnologiya LLC, which also issues the TO-3 recommendation and the overhaul-interval warranty. RVS is an obsolete XADO designation, the zero-generation compounds; the current generation of products is revitalizants.