17 May, 2022

Phoenix PG-Therm successfully seals industrial turbocharger

25 September, 2015

Traditionally, high temperature sealing applications (>500degC) have proved difficult for gasket materials. Many standard gasket materials suffer rapid thermal degradation at temperatures, leading to a loss in sealing performance and eventual failure. Flexible graphite, which is known as a high-temperature material, will suffer oxidation at these temperatures resulting in weight loss and an inability of the gasket or seal to support the compression load. Invariably this will result in seal failure and leakage.

Increased efficiency

An example of a high temperature application, beyond the normal range of conventional gasket materials, is an industrial turbocharger. Industrial turbochargers are turbine-driven forced induction devices that increase an engine's efficiency. They are typically used in marine, power generation and rail applications and run on fuels ranging from marine diesel oil and natural gas to varying qualities of HFO and landfill gas. Industrial turbochargers often operate in hostile environments and at high temperatures.

The technical team at Phoenix Sealing was asked to assist in providing sealing solutions by a leading manufacturer of industrial turbochargers. The seals were subject to operating temperatures of 600degC and moderate pressure. Previous attempts at finding a long-term sealing solution had proved fruitless, the gaskets has either leaked or failed completely including those rated by the supplier to withstand the conditions.

Tight seal at elevated temperatures

Phoenix technical engineers offered PG-Therm, a sealing material based on processed phlogopite mica that contains a very low content of inorganic binder. The weight loss properties of this material are claimed to be superior to conventional sealing materials, which enables the material to maintain a tight seal at elevated temperatures. PG-Therm has reportedly proved to be highly successful in operation and is now specified as the sole material for all high temperature bolted connections within the turbochargers.


Buyers' Guide Search
Search for UK supplier by name
Browse by Product Group.
APRIL/MAY 2022 Issue To view a digital copy of the APRIL/MAY 2022 issue of Hydraulics & Pneumatics Magazine, click here.

MARCH 2022 IssueTo view a digital copy of the MARCH 2022 edition of Hydraulics & Pneumatics Magazine, click here.

For a FREE subscription please click here

July/August 2021 Annual Buyers' GuideTo view a digital copy of the JULY/AUGUST edition of Hydraulics & Pneumatics Magazine, click here.

For a FREE subscription please click here

BFPA YearbookTo read the latest BFPA Yearbook, click here
Talking Industry events in 2021Talking Industry Events in 2021
BFPA Training AcademyClick the image to go to the BFPA Training Academy website
Compressed Air & Vacuum Technology Guide 2018To read the official BCAS Compressed Air & Vacuum Technology Guide 2018 click here
Offshore Europe JournalOEE
Super Swivels
Impulse Automation Limited was established in 1960 and is based in the United Kingdom. We are an importer and distributor of mechatronic components used in a wide variety of industry sectors.Impulse Automation Limited
Hy-Pro FiltrationWEB LOCATOR