Notice – Labconco VACUUBRAND HYBRID Rotary Vane Pump 7584000 User Manual
Page 29
- Use inert gas for gas ballast to avoid the formation of
explosive mixtures.
- To open and to close the gas ballast valve turn the gas
ballast valve cap. The manual gas ballast valve is open
if the arrow on the gas ballast cap is pointing towards
the inlet of the pump respectively towards the labelling
”Gasballast”.
- Close the manual gas ballast valve by turning the cap
180°.
Operate the pump without gas ballast only in case of
a clean system or when there are no condensable va-
pors.
Do not pump vapors until the pump has reached its oper-
ating temperature. Install an in-line valve in the inlet line
and open it only approx. 30 minutes after the pump has
been started.
Check the maximum vapor inlet pressure. The pump can
operate continuously at any pressure lower than the maxi-
mum specified inlet pressure for vapor. Avoid sudden va-
por surges when evacuating commences (large inner sur-
faces, large-volume vacuum vessel).
Use a flow-control valve in the inlet line and open the valve
gradually.
Operating the pump with condensate in the
catchpots
Observe the condensate levels in the catchpots of the sep-
arator at the inlet and of the oil mist filter. The condensate
level in an optional separator at the inlet must always be
kept below the bottom of the separator tube. The conden-
sate level in the oil mist filter must always be kept below
the bottom edge of the filter.
Drain condensate in time. To drain condensate, switch off
and vent the pump. Then open drain screw of the catch-
pot. Condensate of the inlet catchpot (see ”Accessories”,
NOTICE
NOTICE