Safety Pressure Switch [Purge Type Nfpa 496 Completed] - Flowserve SIHI dry Standard M Series Instruction & Operation Manual

dry dry dry dry Standard Standard Standard M Series Dry Running Vacuum Pump Standard
SIHI
Issue Date: November 21, 2016
3.6.1

Safety Pressure Switch [Purge Type NFPA 496 Completed]

A safety pressure switch, installed within Ex-protection Method Device" Expo – Purge Gas System and is
calibrated to min 2.9 PSIG [200mbarg]
3.6.2 Settings Purge Gas Pressure
The min purge pressure [Leakage Compensation Regulator] is calibrated to 3.6 PSIG
Note: Calibration of this Leakage Compensation Regulator needs to be checked every six [6] months
for correct pressure [3.6 PSIG] and shall be recalibrated.
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Flowserve US Inc.
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