Purge Air Inlet And Regulator; Figure 2-12 Purge Air Inlet And Pressure Regulator - Siemens Maxum II Manual

2.3.2

Purge Air Inlet and Regulator

This is a pressure regulator with air input that is connected to an instrument air source. The
regulator is necessary to ensure that the input pressure does not exceed a certain value.
Excessive pressure could damage other components in the purging system. The air is
connected to the electronics enclosure at the reduced pressure. All instrument air must be
clean (free of particulates and flammable vapors) and dry.
Figure 2-12 Purge Air Inlet and Pressure Regulator
Explosion Protection Safety Standards
Manual, August 2017, A5E02220442001 Rev 8
2.3 Electronics Purging System (with Automatic Purge Unit)
Safety Systems - Purging
Air Inlet
27