Tecnologia

ENGINEERING REFERENCE

The contents of this document are proprietary and confidential. They are the property of Ariel Corporation and may not be disclosed, reproduced, or used for manufacture in part or in whole without written permission from Ariel Corporation.

Reciprocating Packager’s Standards

Oil Maintenance
Compressor frame lubricating oil should be changed as indicated in theregular maintenance intervals or with a filter change or when oil analysis results indicate the need. A more frequent oil change interval may be required if operating in an extremely dirty environment without sampling and analysis or if the oil supplier recommends it.

Oil Sampling
Oil samples should be collected on a regular basis and analyzed to verify suitability of oil for continued service.Consistent oil analysis can identify when to change the oil on the basis of need rather than on a scheduled interval. Depending on the service, the length of time between oil changes can be significantly extended through oil analysis. Oil analysis should include:
• • • •

Viscosity testing should be performed at 100°F (40°C) and 212°F (100°C). This is to be sure that the oil has not mixed withcylinder oils or process gas. Particle counting to the latest version of ISO 4406. Spectroscopy to determine wear metals, contaminants, and additives. FTIR (Fourier Transform Infrared Spectroscopy) to check for oxidation, water or coolant contamination, and additive depletion. This is more important if a separate lube oil is used for the force feed system.

Oil System Cleanliness
The compressorframe oil piping system and components are to be free of foreign matter including, but not limited to dirt, sand, rust, mill scale, metal chips, weld spatter, grease and paint. It is recommended that a commercial pipe cleaning service be used to clean the oil piping system. If that is not practical, proper cleaning procedures using cleaners, acids, and/or mechanical cleaning are to be used to meetthe cleanliness requirements. Cleaning by-products are to be properly disposed; a disposal service is recommended. It is also recommended that all oil-piping systems be flushed using an electric or pneumatic driven pump and filtered clean production oil. All compressor frame cavities are thoroughly cleaned prior to assembly and compressors are test run with a filtered closed loop lube system at theAriel factory. NOTE: ARIEL RECOMMENDS THAT THE LUBE OIL PIPING DOWNSTREAM OF THE INSTALLED OIL FILTER NOT BE DISTURBED AS CONTAMINANTS THAT ENTER THAT PIPING OR OPEN PORTS WILL BE FLUSHED INTO THE BEARINGS CAUSING CATASTROPHIC DAMAGE. IF THE PIPING MUST BE REMOVED OR ALTERED, GREAT CARE MUST BE TAKEN TO COVER THE INLETS TO THE OIL GALLERY, THE ENDS OF THE PIPING, AND THE FILTER OUTLET SO THAT NOCONTAMINANTS MAY ENTER. BEFORE REINSTALLATION, CHEMICAL AND MECHANICAL CLEANING IS REQUIRED. THE PIPE MUST THEN BE FLUSHED IN ACCORDANCE WITH ARIEL’S STATED CLEANLINESS REQUIREMENTS. For all compressors that are installed with an electric or pneumatic powered pre-lube pump, which have less than 50 feet (15 m) of oil piping are to be flushed as follows, prior to starting PAGE 16 OF 32 REV 18ER-56.06

ENGINEERING REFERENCE

The contents of this document are proprietary and confidential. They are the property of Ariel Corporation and may not be disclosed, reproduced, or used for manufacture in part or in whole without written permission from Ariel Corporation.

Reciprocating Packager’s Standards the compressor. The cooler oil passages are to be included in the flushing loop. Oilsystems for compressors without an electric or pneumatic powered pre-lube pump, which have less than 50 feet (15 m) of oil piping, must be clean and while oil flushing is desirable for these systems, it is not a requirement. Prior to assembling the lube oil piping remove scale, weld slag, rust and any other matter that could contaminate the lube oil. Confirm: The entire lube oil system is complete...