Installation
55GA02411_002_C0 - 10/2016 - © Leybold
3.9 Connecting the Purge Gas Valve
(only for certain pump versions, see Section 1.4)
In the case of ATEX applications conforming utilisation requires mandatory
operation with purge gas.
Connect the valve as shown in the Figs. below. The valve is normally closed.
Connect the purge gas: admission pressure into the pressure reducer 3-10
bar (g) (to be provided from the side of the customer).
24 V DC
1 +
2 -
Valve
Fig. 3.13 Electrical connections at the purge gas valve
Fig. 3.14 Connecting the plug and the purge gas at the purge gas valve
Purge gas connection -
G 1/8" inside thread
Loosen screw and
pull the plug
Fig. 3.12 Retrofitting the manual gas ballast with a 24 V DC valve
manual gas ballas Gas ballast with
24 V DC valve
Conversion
union nuts
Non-return valve
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