Reducer of Fluid oXidation
Function
Function
The RFX works in 2–4 minutes long working cycles where every cycle has two phases.
During the whole cycle the oil is under vacuum. This is shown by foaming that is more or less
significant depending on the oil condition and air content.
Phase II
Maximum oil level
during operation
Piston rod in lower
position
Piston rod in
upper position
Minimum oil level
Phase I
Phase I
In the first phase oil is supplied at the same time as the centrally positioned piston rod moves
to its upper position. When this position is reached, the oil free space inside the glass tube is
connected to an inner cylinder which has in this position its largest volume and lowest
pressure. When the connection is made, pressure equalization starts. Air and steam flow
down to the inner cylinder. This phase is ended when the liquid level float changes to a new
firm position relative to the piston rod.
Phase II
The second phase is started when the piston rod moves downwards to its lower position and
the oil suction starts. When the piston rod leaves the top block, the connection between the
two chambers is closed. Air is compressed and leaves the unit through a check valve in the
drain adapter. The phase is finished when the float changes its position to a lower firm level
and oil is supplied again.
HYDAC FILTER SYSTEMS GMBH
us
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MoWa RFX 3570845 us 2010-08-20.doc
2010-08-19
