Compressor Lube Oil System Diagram

[Patricia]

Thenew Proflo PF2 is a programmable shutdown device used to monitor the lubricant flow of divider valve metering systems. Cycle times are continuously monitored and communicated through both the LCD display and the LED indicator lights.

In critical operations, remote and/or hazardous environments the logistics of valve repair and maintenance can be complicated and expensive. The CPI Replaceable Seat Valve eliminates those concerns.

Reciprocating compressors and particularly the main pressure packing cases are known to be large contributors to the overall gas emissions from plants. For this reason, CPI have invested much time and resources to develop unique solutions to help solve this industry wide problem.

To access CPI's comprehensive collection of brochures for all valve products, visit the Technical Library below, select the brochures section and scroll down alphabetically to all literature prefixed Valves.

The oil and lubrication system plays a very significant role in the performance of a reciprocating compressor. Too much, too little or inconsistent delivery can reduce performance, lead to premature wear and potentially result in catastrophic failure.

To access CPI's comprehensive collection of brochures for all lubrication products, visit the Technical Library below, select the brochures section and scroll down alphabetically to all literature prefixed Lubrication.

Our reputation on customer sites is highly regarded and our expertise is utilized on the most critical of installations. Through our component and full compressor knowledge, we bring the optimum level of total compressor support.

With more than 25 years of proven performance, the original Fivealloy coating and plasma spray process, supplied exclusively through CPI, part of the Howden group, is an ideal method for repairing compressor piston rods, cylinders and cylinder liners.

The CPI purge gun provides a convenient, cost effective method to remove air from the divider block system to ensure all lubrication points will receive lubrication immediately on start-up of the compressor.

Standalone lubrication system console designed specifically for hazardous environments and a wide range of industrial machinery, including reciprocating compressors and reciprocating pumps.Cost-effective solution tailored for smaller and less critical compressors

CPI's low emission packing ring that multiplies the benefits of a tangent to rod ring and a step tangent ring by combining the two rings into one, providing a more efficient seal, reduced friction and extended lifetime.

CPI, part of the Howden group, is a leading manufacturer of precision engineered components for reciprocating compressors used in petrochemical, refining, natural gas, and offshore industries in Eastern Canada.

CPI, part of the Howden group, is a leading manufacturer of precision engineered components for reciprocating compressors used in petrochemical, refining, natural gas, and offshore industries in Nigeria.

CPI, part of the Howden group, is a leading manufacturer of precision engineered components for reciprocating compressors used in petrochemical, refining, natural gas, and offshore industries in Western Canada.

Ancillary systems are integral to the smooth and efficient performance of reciprocating compressors. In this feature, first published in CompressorTech2, CPI by Howden discuss their latest developments in lubrication monitoring and shutdowns.

Describes various ways in which the Piston Ring can be cut to allow the ring to make constant sealing contact on the cylinder bore, maintain sealing along the stroke, provide end clearance, ease of installation over the piston and into the grooves.

The High Volume Lube Pump (HVLP) delivers accurately measured quantities of lubricating oil to the divider block lubrication system for distribution to rod packing, compressor cylinders, power cylinders and various lubrication points on engines and compressors

The CPI Model P55 Pump series features heavy duty metering, precision, and self lubricating pumps capable of pumping small amounts of mineral or synthetic oil to machinery injection points at pressures up to 7500 psi

The captured proximity switch, a single pole single throw magnetically operated reed switch, sends a dry contact signal to any PLC-style control panel or directly to the lubrication monitor, such as the Proflo PF2 monitoring device.

CPI 138 has been developed especially to give safe and reliable use in dry oxygen compressors and has undergone ignition-testing for this demanding application. CPI 138 is also suitable for dry gases which contain oxygen as a constituent, such as bone-dry air and crude argon.

CPI 315 is a non-fibrous material, non-abrasive and provides a combination of good mechanical properties and wear resistance, equally suited to both lubricated and non-lubricated compressor applications.

CPI 543 is a proprietary reinforced thermo-plastic material developed for use in CPI compressor valves CPI 543 is the most widely selected valve disc material for use in a broad range of operating conditions.

CPI 560 is a proprietary high performance material developed exclusively by CPI. It is suitable for use in both lubricated and oil free applications, where its resistance to extrusion is advantageous.

CPI 565 is a proprietary reinforced thermoplastic material developed for use in CPI Compressor valves. This CPI material exhibits very low moisture absorption and is therefore particularly beneficial in saturated gas applications such as atmospheric air or saturated carbon dioxide. CPI 565 also offers an exceptionally high temperature resistance.

CPI 566 is a proprietary reinforced thermo-plastic material developed for use in CPI compressor valves CPI 566 exhibits very low moisture absorption and is therefore particularly beneficial in saturated gas applications such as atmospheric air or saturated carbon dioxide.

CPI 568 is a high strength polymer used for valve components requiring high strength, at the same time offering good resistance to high temperatures and chemical resistance to a wide range of gases and liquids.

Edited February 2022 - Effective May 1, 2016 CPI, part of the Howden group, released the HP+ and XD+ Divider Block product lines. These products serve as direct replacements for the previous HP and XD Divider Blocks.

Tens of thousands of reciprocating compressors operating in North America each consume as much as $250,000 per year in lubricating oil. In general, most of these compressors are consuming more oil than necessary, so operating costs could be significantly reduced. Cost reduction can be achieved with relatively simple steps to ascertain the correct type and quantity of oil being delivered to each lube point, without changing the designs or materials of the wearing components. This paper describes the established method, as well as steps to ensure the lube system is operating correctly, to provide long-term reliable compressor operation.

Liquid contamination (ex. water, hydrocarbon) and oil starvation also interfere with oil film quality by decreasing oil viscosity and/or removing the oil film. Poor lubrication results in excessive temperatures which decreases component life. In extreme cases, a thermal runaway condition can lead to rapid component failure.

It is important to note that packings can generate different amounts of heat depending upon the compressor application. The additional heat generated by the packing may warrant increasing the recommended oil viscosity to offset the viscosity lost at the increased temperature. Large amounts of heat generation will require the packing be cooled with water or in some cases oil in order to maintain a reasonable operating temperature.

Many factors can influence the lubrication rate requirement as well as how reliably oil is delivered to critical areas in the cylinder lube system. Below are the most common factors that need consideration prior to modifying lube rates:

The current compressor setup needs to be reviewed before pursuing a lube rate reduction. Factors may be found that developed or were not considered in initially sizing the cylinder lube system. The cylinder lube system setup needs to be correct and deemed in good working condition (reliable) prior to reducing the lubrication rates. Systems should already exhibit satisfactory component service lives and performance prior to reducing lube rates.

Lube rate reductions must be done methodically to avoid under-lubricated conditions that accidentally damage components due to increased operating temperatures. Excessive temperatures can fail piston/packing rings along with other major components like piston rods and cylinder bores. Component failures can accrue significant costs depending on their severity:

The reduction process requires slowly decreasing the lube rates and performing periodic inspections after each reduction. This verifies the amount of oil and quality on components. Evidence of marginal lubrication indicates when lube rates need increased. It is difficult to inspect oil films inside the packing due to how the cases are constructed. For these components, the vent line leakage and/or tubing contact temperature can be monitored to note changes in operating condition. A consistent tubing location (nearest the packing case) and method for verifying contact temperature is required.

It is important to identify any history related to accelerated wear on components such as piston rings, wear bands and packing. Related issues on wear components may lead to further investigation into what the failure mode is and may result in any lube reduction be suspended until further investigation is performed.

Once all information is gathered prior to testing, the application can then be reviewed to be a good candidate for further lube reduction. If all inspections reveal that the unit has not experienced excessive wear and shows to have good quality lubrication on all wear components, the lubrication reduction procedure can be instituted and followed.

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