Installation
36
GA03108_002_C1 - 04/2018 - © Leybold
3.5 Connecting the Flanges
Already small quantities of liquids (from the vacuum chamber or the piping)
can lead to liquid damages within the pump. These may lead to a defor-
mation of the impellers and may entirely destroy the pump. Suitable pro-
tective measures should be provided as required in the piping on the suc-
tion side (separator, T-piece).
The pumps are vented with nitrogen. Only remove the packing flanges
before immediate connection.
If not already done, remove the protective shipping covers, plastic pieces, foil
or packing flanges from the flanges (3.1/5) and (3.1/1).
We recommend that you retain the transport flanges in case you want to
store the pump at a later date.
Clean the flanges and check that the sealing surfaces are in perfect condi-
tion.
Flange the pump to the vacuum system.
Don’t place any stress on the pump casing when installing the intake and
exhaust lines. Fit compensation elements in order to avoid such stresses.
When attaching the pump directly (without bolting down the feet) to the
forevacuum pump, you must always use on the pressure side the full
number of screws defined by the flange standard (ISO-K, DIN or ASA)
whereby these must comply with the demanded property class rating.
You must also check whether the backing pump is rigid and stable enough
to support the load of the RUVAC pump in each case.
The intake screen which is supplied with the pump should always be fitted
into the intake flange when there is the possibility of contaminants entering
the pump coming from the vacuum chamber or the piping. Even with clean
vacuum processes, contaminants from the system may enter upon initial
start-up. Depending on the operating conditions, the intake screen may
reduce the pumping speed of the pump.
NOTICE
NOTICE
