5 | Installation
12 | 40
Instruction Manual COBRA NC 1000 B WCV_EN_en
5.2.1
Suction Connection
WARNING
Unprotected suction connection.
Risk of severe injury!
●
Do not put hand or fingers in the suction connection.
NOTICE
Ingress of foreign objects or liquids.
Risk of damage to the machine!
If the inlet gas contains dust or other foreign solid particles:
●
Install a suitable filter (5 micron or less) upstream from the machine.
Connection size(s):
– DN125 PN16, EN 1092-1
If the machine is used as part of a vacuum system:
●
Busch recommends the installation of an isolation valve in order to prevent the machine from
turning backwards.
5.2.2
Discharge Connection
NOTICE
Discharge gas flow obstructed.
Risk of damage to the machine!
●
Make sure that the discharged gas will flow without obstruction. Do not shut off or throttle the
discharge line or use it as a pressurized air source.
Connection size(s):
At the machine discharge connection:
– DN125 PN16, EN 1092-1
At the silencer (SI) discharge connection (two optional versions available):
– DN125 PN16, EN 1092-1
– DN100 ISO-K, DIN 28404
●
Make sure that the counter pressure (also termed back pressure) at the discharge connection
(OUT) does not exceed the maximum allowable discharge pressure, see Technical Data.