Binder vdl 23 - Area Classification in the Surroundings of the Chamber: Extraction Lead to the Pump, Location of the Pump; Figure 11: Area Classification in the Surroundings of the Chamber During Operation (Example)

VDL (E3) 09/2019 Page 51/234
3.6.3 Area classification in the surroundings of the chamber: extraction lead to the
pump, location of the pump
VDL
Pump module
with pump
(example)
front
rear
Pump
(example)
VDL
(rear)
Figure 11: Area classification in the surroundings of the chamber during operation (example)
Occurrence of an explosive atmosphere:
explosive atmospheres may occur occasionally (interior of VDL and pump)
explosive atmospheres may occur on a rare and temporary basis (environment)