MAN-PTS-GB, Revision 9, BSC, 15-FEB-2017 12/46
Liquid separator
The liquid separator is integrated in the cover of the PTS System. Pressure and vacuum valves are
mounted on a separated tee directly connected to the cover.
The device consists of one main separation chamber with a float in stainless steel. The system
comprises a flange at the bottom and a cap at the top. The guidance (support) of the float is
attached to this cap which is equipped with a tri-clamp to be connected to the T-part.
The float blocks the outlet of the separator in case the liquid would be sucked into the PTS
chamber and pass through the membrane. The float is lifted up by the liquid during the CIP cycle.
When the float reaches a certain level, it is sucked up by the vacuum to an O-ring positioned in
the cap stopping the liquid suction. The vacuum line is then protected against liquid entry.
The vacuum rate required for the suction of liquids is inferior than the one required for powder
transfer. The vacuum line is equipped either with an automatic ball valve which the ball is
perforated perpendicular to the passage of the ball (standard), or with an automatic ball valve
and a by-pass line with a manual valve (optional). When the liquid is sucked, and when the
selector switch is set to “Cleaning”, the automatic valve is closed and the suction is reduced
through the reduced flow orifice. The perforated ball valve or the manual ball valve reduces the
flow rate of about 1/3.
1 Compressed air resp. nitrogen flow
2 CIP-Cover
3 Perforated ball valve (standard)
3.1 Perforated ball valve in CIP-position
3.2 Perforated ball valve in product transfer position
4 Vacuum
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