WHY FILTER?

Compressed air used in high precision applications, pneumatic automation and in the chemical, biochemical, electronics, pharmaceutical and food industries, has steadily increased the requirement for greater levels of purity.

The level of atmospheric contamination that can be found in an industrial area may be as much as 140 million particles per cubic meter of air.

About 80% of these are smaller than 2 microns and are therefore not captured by the intake filters of the air compressors.

When the air is compressed to 7 bar, for example, the number of particles per cubic meter reaches 1/120 million.

This contamination is made worse by:

• Water vapour, most of which condenses in the form of droplets.
• Hydrocarbon vapour from heating systems, road and air traffic and oil vapour produced during compression.
• Air-borne oil particles produced in the air compressor in concentrations typically ranging from 5 to 20mg/Nm³
• Solid contaminants produced in the compressed air distribution and treatment system.

Some of the problems created by this concentration of pollution are:

• Interruptions in the production process
• Extremely frequent maintenance schedules
• Lowe product quality
• Type & size of Atmnospheric pollution agents

Compressed Air / Gas Filtration and ISO Standard

Tegnon offers you the right and most cost effective solution for contamination problems in your air or gas reticulation system with our range of "FINITE" filter elements designed and manufactured for the removal of oil, water and solid contaminants.
The performance of these elements in different combinations conform to the requirements of international ISO standards as specified in ISO8573-1 as indicated in the table.

3 Element grades are available.

• FG - Good general coalescing efficiency in combination with high flow rates and long element life micro-glass media with stainless steel supports. Particle rating - 0.6 micron, oil carryover - 0.05mg/m³ (~0.4ppm)
• FA - Coalescing applications where total removal of liquid aerosols and suspended fine solids is required in all pressure ranges - micro-glass media with stainless steel supports.
  Particle rating - 0.3 micron, oil carryover - 0.01mg/m³ (~0.008ppm)
• FP - Polishing gas streams  of trace amounts of hydrocarbon contaminants. Activated charcoal
  media - must be protected by coalescer.
  Oil vapour removal efficiency - Down to 0.003mg/m³ (~0.0025ppm)
• FO - Removal of solids where very high dirt holding capacity is required. Pleated cellulose media.
  Particle rating - 3 micron, efficiency - 100%.

tegnon filter housings are manufactured in a variety of materials to suit any application - we also have the facility to custom design filters for specialised applications - All housings
( except FP ) are complete with a high quality differential pressure gauge.

tegnon filters can be fitted with a variety of mechanical or electrically operated automatic drains.

tegnon filters are available as standard for pressures up to 16 bar - on request filters can be supplied for pressures up to 310 bar.

tegnon also supplies a complete range of retrofit elements to suit filter housing from other manufactures.

*  Nominal capacity at 700 kpa(g) operating pressure and normal particulate loading of < 50 ppm. For severe loading between 50 & 200 ppm multiply chart capacities by 0.75, for over 200 ppm multiply chart capacities by 0.5.