Below Breather Bossfiltration Presentation

New Bellow Breather – Isolates equipment
from the atmosphere
– Application for bellow breather in industry
» Pumps, fin-fan gearboxes, oil reservoirs,
power transformers etc.
» In areas where moist, dust in the form of coal
and sand is a source of contamination of the
lubrication oil this breather will stop ingress
and add quantum life to machinery.
Components of bellow breather
Breathing opening
80 mic Filter at
Breathing opening
Bellow or bladder
One way valve
releasing at
+1000 Pa
Sight glass for
silica gell
Connection for;
Pump, gearbox,
oil reservoir ,
transformer etc.
10 mic Filter
10 mic Filter
Demister section
• The air leaving the rotating equipment contains water
vapour and also oil is sometimes splashed out the
vent point.
• The purpose of the demister section is to prevent the
oil drops to reach the filter membrane and clogs the
pores. The water vapour will go through the demister
section and will be absorbed by the absorbent
granules. As the equipment breath during heat cycles
the inner moist is absorbed by the absorbent material
.During the breathing stage the equipment remains
totally isolated from the atmosphere. This is been
achieved by the bellow moving up and down to allow
for volume changes.
Basic operation exhale
Basic operation inhale
Basic operation cooling down
Safe operation in extreme conditions
Protection against over
Protection against
Water extraction from
Tests for over pressure
and vacuum
Summary on Bellow Breather
• Prevention of oil contamination.
• No cleaning of transformer oil needed.
• Continuous improvement on MTBF.
• Prevent bearing failure on fin fan coolers.
• Keep gearbox internally dry at cooling
towers conditions.
• Costs saving on maintenance budgets.
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