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20901121_12+16_VARIO_Vsel_V1.0_020818
Installation and connection
4.4.4 Connect venting valve (optional)
DANGER
Risk of explosion due to venting with air.
Depending on the application, venting can cause explo
‑
sive mixtures to form or other hazardous situations to
arise.
>
>
Never vent processes with air which could form an
explosive mixture.
>
>
In the case of flammable substances, use
only inert gas for venting, e.g., nitrogen
(max. 1.2 bar/900 Torr abs.).
There is
no
venting connection at the diaphragm pump,
at the controller or at the enclosed
VACUU·SELECT
®
Sen‑
sor
. You can connect different venting valves, e.g., the valve
VB M‑B
, via VACUU·BUS
®
directly to the controller, though.
see accessories in
