MNL000446.doc
Revision 00
09/19/2016
© Versum Materials, Inc. as of the revision and date shown. All rights reserved.
Confidential and Proprietary Data
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PT5
Pressure Transducer for Waste Gas Vent System
This transducer measures vent gas pressure upstream of the
vacuum venturi.
EFS
Flow Switch (Optional)
This device senses an excess flow of process gas caused by
downstream system failure (tubing or component leak, valve or
regulator failure, etc.) and sends a switch signal to the controller to
shutdown the system.
Filter (Optional)
This device removes particles from the gas stream
Check Valve
CV
This safety device is used to prevent backflow of gas into another
section of the system.
Vacuum Venturi
This device is used to pull a vacuum on the process panel during
purge cycles. It uses a flow of nitrogen past an orifice to create a
vacuum as low as 26" Hg.
NOTE: Reference the specific system drawings and inserts in the document
envelope for additional component descriptions included in custom systems.