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Pressure Transmitter in Lube Pump, Oil, and Filter Pressure Applications

Pressure Transmitter in Lube Pump, Oil, and Filter Pressure Applications

Using Pressure Transmitters in Gas Turbines for Machinery and Factory Automation Industries

Lube Pump, Oil and Filter Pressure

Rotating machinery requires the use of several monitored fluids to ensure safe, efficient operation. Lubricants and oil are the first among working fluids being monitored. Gas turbine engines, like those in helicopter rotors and commercial jets, use lubricants on all working surfaces to minimize wear, fretting, and general material degradation in order to maximize the useful life of the machine. Oil is used for both engine lubrication and engine cooling. Pressure transmitters are used to monitor such fluid pressures and to indicate to a control system how to optimize performance.

When helicopters are used in remote, dry locations (namely deserts), it’s crucial to monitor lubricant pressure. This is where pressure transmitters play a central role. Lubricants and grease pumps ensure that moving parts of machinery are lubricated, and they aid in preventing sand and dust from causing internal damage to flight-critical systems. Oil pumps circulate cooling fluids to the helicopter blades and other parts of the aircraft using pressure transmitters to safely control lubrication. These lube systems can also be used to control quick oil change while the helicopter is grounded to provide instant system cooling.

As undesirable particulate matter enters the fluid systems on board, filters are used to cleanse the fluids. Differential pressure transmitters determine the filter blockage rate, which in turn helps with aircraft preventative maintenance.

Pressure Transmitters in Gas Turbine Applications

Pressure transmitters are used for lube pump, oil, and filter pressure measurement in machinery and factory automation in the following gas turbine applications: 

  • Oil pump pressure measurement and control
  • Oil filter differential pressure measurement
  • Lube pump pressure measurement and control

In machinery and factory automation applications, the lube pump, oil, and filter pressure measurement processes call for pressure transmitter compatibility with arid, dusty environments, as well as material compatibility with application-specific lubricants and oils. Pressure transmitters are responsible for measuring oil and lubricant pressure and interfacing with a control system to increase or decrease pressure as necessary. Pressure transmitters aid in preventative maintenance operations (like filter differential pressure measurement). 

The presence of potentially combustible dust and oils typically necessitates the use of explosion-proof or intrinsically safe components approved for use in Class I, Division 1 & 2 and Class II, Division 1 & 2 hazardous locations. 

The WIKA E-10/11 electronic pressure transmitter is designed for machinery and factory automation gas turbine applications like lube pump, oil, and filter pressure measurement.


Choosing the Right Pressure Transmitters

Considerations in choosing the right pressure transmitters include: 

  • Absolute or gauge pressure measurement
  • Cable or flying lead pressure transmitter wiring
  • Class I Division I or Class I Division II hazardous area requirements
  • Intrinsically safe, explosion proof, and non-incendive pressure transmitters
  • Media and ambient temperature compatibility
  • Moisture resistance, media compatibility, and accuracy 
  • Overpressure and burst pressure rating
  • Radio frequency (RFI) and electromagnetic interference (EMI) in pressure transmitters
  • Standard or flush diaphragm pressure transmitters
  • Vibration resistance in pressure transmitters


Pressure Transmitter in Lube Pump, Oil, and Filter Pressure Applications