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Daniel Walsh

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Ask the Expert: Pump Oil Analysis

Posted by Daniel Walsh on March 12, 2018

Pumps are used in industrial and fleet applications to move liquids and gases. Most pumps used in industrial applications are either positive displacement or centrifugal.  In both cases bearings are the component that must be lubricated and monitored. Rotary positive displacement pumps have gears, screws, lobes or vanes which are also lubricated, usually by the fluid they are pumping, whether it is a lubricant or an oil /air mix. 





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Topics: Industrial, Fleets

Ask the Expert: Oil Analysis for Hydraulic Systems

Posted by Daniel Walsh on February 13, 2018

two hydraulic pistons small.jpgHydraulic systems are used in industrial, mobile and aviation applications to transmit power to operate equipment. They are incredibly efficient, compact, and lightweight relative to a mechanical equivalent. Hydraulic fluids transmit force in the system, and as such are carefully chosen by the system maker.  Chemical stability, high flash and fire points, viscosity, and oxidation resistance are all valued, and as a result mineral and synthetic hydrocarbon fluids are selected for mobile and industrial systems, whereas functional chemicals such as phosphate esters are chosen for aviation and specialized industrial applications.  

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Ask the Expert: Compressor Oil Analysis

Posted by Daniel Walsh on February 07, 2018


compressors.jpgCompressed Air is considered to be the 4th utility after power, water and fuel (natural gas), and usually the one that all customers must generate and provide themselves. Compressed air is the energy of choice to power a great variety of applications across fleet and industrial applications. Since compressors are integral to providing the power for a variety of machines throughout a plant or on a vehicle, reliability and uptime of compressors is paramount. 

Oil analysis is a key tool used to ensure that compressors stay up and running and that unscheduled downtime is minimized. This brief Ask the Expert video explains the parts of a compressor that are typically monitored using oil analysis, the most common failure modes for compressors, what types of tests are typically run on the oil, and what on-site instruments are best-suited to performing that suite of tests. 



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Ask the Expert: Turbine Oil Analysis

Posted by Daniel Walsh on January 25, 2018

Gas turbine rotor small.jpgMonitoring turbines with oil analysis is well known and well established. All turbines, both steam and gas, have a large oil reservoir to lubricate the turbine bearings. Older designs had separate sumps for the hydraulic control of valves, whereas newer designs may have the lube oil and hydraulic sump linked together. Power plant operators new to oil analysis can be easily confused about what all the tests are. Fortunately, the industry has developed umbrella specifications for power plant lubrication monitoring, such as ASTM D4378 and ASTM D6224, and these define almost every test used to qualify lubricants for new and in-service monitoring for power plants.  

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Topics: Industrial

Ask the Expert: Engine Oil Analysis

Posted by Daniel Walsh on January 15, 2018

Oil analysis was first employed on engines as a predictive maintenance tool, and it remains a predominant technique for insuring the reliability of engine systems. Reciprocating internal combustion engines power most of the world's mobile equipment, such as cars, trucks, buses, locomotives, mining equipment, agricultural equipment and are also common in stationary backup power generators, oil and gas exploration rigs, and pipeline compression stations.  






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Topics: Fleets

Ask the Expert: Gearbox Oil Analysis

Posted by Daniel Walsh on December 21, 2017

Oil analysis is a very useful tool for gear systems. Geared systems are found across both mobile and industrial equipment. Though they are designed to be very reliable, they cause a lot of disruption and costs when they wear or break due to poor operation or contamination. Oil analysis is a great tool to detect when failure conditions are developing, and as such most gear manufacturers suggest condition monitoring, including oil analysis.

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Eliminate Degassing When Measuring Viscosity of Compressor Oils

Posted by Daniel Walsh on June 08, 2016

Compressor oils can create unique challenges when trying to measure viscosity. Dissolved gases from refrigerants, in particular, tend to bubble out when these oils are measured using traditional viscometers. This can create errors in the measurement, typically causing readings to be much lower than they should be. 

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Topics: How to

Guide to Measuring Particles in Oil

Posted by Daniel Walsh on May 02, 2016

Particle counting is a critical aspect of any machine conditioning program and
there are many tools out there available to monitor and track the quantity and
severity of the contamination, be it due to external contamination or machine

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Topics: How to

Aircraft Fluid Analysis Using SpectrOil

Posted by Daniel Walsh on July 14, 2015


Synthetic Polyol Ester fluids are the fluids of choice to lubricate aircraft gas turbine engines used in commercial and military service requiring MIL-PRF-23699F-STD level performance. It also is used for aircraft-type gas turbine engines in industrial or marine service applications.

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Used Oil Analysis for Marine Fleets

Posted by Daniel Walsh on February 09, 2015

If you are at sea for weeks or months at a time, it is not practical to send oil samples to a third party laboratory. Waiting until you reach port is not an ideal solution, as machine condition and oil condition can change dramatically while out at sea. Oil test kits containing volatile and corrosive chemicals are difficult to manage and create hazardous waste, which must be stored and disposed of properly. Portable, solvent-free, intuitive oil analyzers are the ideal solution for maintaining marine fleets in prime operating condition. This article written by Daniel Walsh, Director of Product Management, describes some new options available to marine fleet maintenance personnel.

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