LEYBOLD ScrewLine SP250 - Retrofitting Gas Ballast Valve

Installation
48
GA02412_002_C0 - 10/2016 - © Leybold
3.7 Retrofitting the Manual Gas Ballast with a 24 V DC Valve
(for variants delivered with manual gas ballast only)
When loosening and tightening the union nuts, always use a second span-
ner above the union nut for holding back. No torque may be applied to the
non-return valve. The non-return valve has been glued in ensuring a tight
seal.
Unscrew the union nuts (30 mm spanner) and remove the manual gas ballast
actuator.
Reassemble the entire unit with the solenoid actuator.
NOTICE
Fig. 3.10 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
10°
Top view:
Dust filter and solenoid valve are
offset by approximately 10°.