Elmo Rietschle G-BH10 - Manual (Page 17)

Installation and Commissioning
© Gardner Denver Deutschland GmbH 17 / 30 610.44431.40.000
5.2.2 Pipe/ hose connections (pump)
On delivery the suction and delivery branches of
the G-BH100 are sealed up in order to prevent
foreign bodies from entering the pump.
Do not remove the seals until right before con-
necting the pipes/ hoses.
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IMPORTANT!
The G-BH100 must not be operated
with the suction or delivery branches
sealed up or jammed!
For the arrangement of the branches see Fig. 4,
page 10.
The operating direction of the G-BH100 is indi-
cated by means of arrows:
 The direction of rotation is indicated by an
arrow on the pump casing.
 The delivery direction is indicated by arrows
on the suction and delivery branches.
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IMPORTANT!
The main or operating direction of
rotation of the G-BH100 is the coun-
ter-clockwise rotation, given by the
arrow indicating the direction of rota-
tion on the pump lid.
Only with the counter-clockwise rota-
tion the nominal values will be
achieved.
Clockwise rotation is only permissible in
special cases. In this instance the G-
BH100 will not achieve its full output.
The pumped gases / vapours are taken in via the
suction branch and are expelled via the delivery
branch.
The suction branch (see Fig. 4 # 4, page 10) is
indicated by an arrow pointing into the pump.
Connect the suction pipe to this branch.
The delivery branch (see Fig. 4 # 1, page 10) is
indicated by an arrow pointing out of the pump.
Connect the delivery pipe to this branch.
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IMPORTANT!
These instructions apply to the coun-
ter-clockwise rotation!
In case of clockwise rotation the suc-
tion and delivery branches are ex-
changed!
Make sure to connect the pipes / hoses so that
the G-BH100 will not be subject to any stress or
strain.
WARNING!
Rotating impeller - hazard of sever-
ing limbs!
In case of operation with open suc-
tion or delivery branches (drawing-in
of gases from or discharge of gases
into the surroundings) a piece of
pipe or hose with a length of at
least 120 mm must by all means be
connected to the branch in question
in order to prevent the impeller from
being reached by fingers!
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IMPORTANT!
The pipes/ hoses must be attached
in a secure and tight fashion.
They must be locked against unin-
tentional loosening e.g. due to vibra-
tions, thermal expansion, etc.
WARNING!
Check pipes/ hoses and vessels for
sufficient strength!
WARNING!
Check pipe/ hose connections for
tightness!
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IMPORTANT!
Provide a shut-off device and / or a
means for depressurisation in both
the suction and the delivery pipes.