BUSCH COBRA ATEX, Instruction Manual

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5 | Installation
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If additional electrical components not included in scope of delivery should be added:
• Make sure that they have a better or equal ATEX classification than that of the
machine, see the ATEX marking on the nameplate (NP).
5.2 Connecting Lines / Pipes
• Remove all protective caps before installation.
• Make sure that the connections are gas tight.
• Make sure that the connection lines cause no stress on the machine‘s connection; if
necessary use flexible joints.
• Make sure that the line size of the connection lines over the entire length is at least as
large as the connections of the machine.
In case of very long connection lines it is advisable to use larger line sizes in order to
avoid a loss of efficiency. Seek advice from your Busch representative.
WARNING
The connection lines can be built up by electrostatic charge.
Risk of severe injury!
Risk of explosion!
• The connection lines must be made out of conductive material or provisions must be
made against creating an electrostatic charge.
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:
– DN150 PN16, EN 1092-1
– ANSI 150, 6” (optional)
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.