Chapter 10 - Maintenance
_______________________________________________________________________________________________________________
MNL000538
Revision 1
03/26/2018
BSGS eV / BULKGUARD eV
© Versum Materials, Inc. as of the revision and date shown. All rights reserved.
Confidential and Proprietary Data
Page
10
-
5
Every 6 Months
Component
Task
Valves
Examine each valve for external leaks. Replace as required.
E-Stop Interlock
Verify that when the emergency stop button is depressed, the
system shuts down.
Low- Low
Process Source
Pressure on all
PT-1’s.
Verify that process source pressure below the low-low setpoint
initiates a process line shutdown.
High-High
Process Source
Weight on all
WT-1’s.
Verify that process liquid weight above the high-high setpoint
initiates a process line shutdown.
Low-Low Process
Source Weight
on all WT-1’s.
Verify that process liquid weight below the low-low setpoint
initiates a process line module shutdown.
High-High
Interstage
Pressure on all
PT-10’s.
Verify that interstage pressure above the high-high setpoint
initiates a process line shutdown.
High-High
Delivery Pressure
on PT-2A and
PT-2B.
Verify that process delivery pressure above the high- high
setpoint initiates a process line shutdown.
Low-Low
Delivery Pressure
on PT-2A and
PT-2B.
Verify that process delivery pressure below the low-low setpoint
initiates a process line shutdown.
Low-Low
Houseline
Pressure on
PT-9.
Verify that houseline pressure below the low- low setpoint
initiates a process line shutdown.
