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Chesterton Seals Pneumatic System Leaks in Power Plant


Case study – Chesterton ILMRO products – Industrial Lubricants

Chesterton - Global Solutions, Local Service



Pneumatic fittings in this power plant were failing repeatedly due to low-cost, low-quality PTFE thread sealing tape. This was leading to poor process control and wasted product and repair-time due to leakage in the systems. Chesterton prides itseld on top-quality lubricants, and so they recommended a combination of their Chesterton 800 GoldEnd® Tape and Chesterton 860™ Moldable Polymer Gasketing to repair and maintain efficient system processes.

Products featured in the case study:

Chesterton 800 GoldEnd® Sealant Tape.

Chesterton 860 MPG: Moldable Polymer Gasketing.


Pneumatic fittings were failing repeatedly due to low-cost, low-quality PTFE thread sealing tape. Compressed air leaks were leading to poor control of pneumatic operated valve and positioners for the Boiler Feed Water System. Leaks in the compressed air system resulted in significant repair costs.

Compressed air is one of the most costly systems in this plant, and therefore these issues needed to be fixed for the sake of production efficiency.

Power plants use a tremendous amount of compressed air, often an area for significant savings.


The maintenance department evaluated the performance of Chesterton 800 GoldEnd® Tape on a series of threaded connections in their shop. The product did not tear or fray at assembly.

The customer commented that Chesterton 800 GoldEnd® Tape was much thicker than previous tape, and required only 1 to 1-1/2 wraps on the threads (versus 4-5 times with original).

Valves, solenoids, and positioners require consistent air pressure to work efficiently.


Savings in compressed air are a substantial but often overlooked production cost. By reducing air leaks on fittings, this plant:

  • Saved thousands of dollars in compressed air and maintenance repair
  • Achieved better instrumentation equipment performance.

Reducing 100 SCFM can result in energy savings of $13,600 + per year.

Sealing air leaks reduces waste and improves efficiency.

About Us

Chesterton global solutions, local service

Chesterton® is a world leader in helping process industry companies and manufacturers improve the reliability and efficiency of their rotating, stationary, and fluid power equipment platforms. We are known across a wide range of industries for our award-winning pump and valve sealing solutions, applications expertise, equipment maintenance and wear-prevention products, and knowledgeable hands-on local service​.

® Registered trademark owned by A.W. Chesterton Company
Case Study – Issued 09/21

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