Chapter 10 - Maintenance
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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
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The following list of maintenance tasks is arranged according to frequency.
Every Cylinder/Trailer Change
Component
Task
Electrical
Control System
Verify warning labels are in place and legible.
Pigtail Heat
Trace (if
installed)
Inspect pigtail heat trace for abrasion damage to the stainless
steel over braid and jacket. Replace if signs of damage are
present.
Inspect heat trace end termination for abrasion and assure it’s
fastened tightly to the heat trace. Reinstall and secure to the heat
trace as required.
Regulators
Observe operation of regulators during pressure adjustment. If
pressure changes are not smooth, remove and replace regulator.
Process Flex
Hose (if installed)
Inspect the process flex hose for signs of abrasion and kinks. If
the stainless steel overbraid or bellows is damaged, the hose
must be replaced as soon as possible.
Source Container
Pneumatic Valve
Supply
Inspect the pneumatic tube, or tube bundle for kinks and deep
abrasion that could cause failure. Replace the pneumatic tube if
any of these signs exist. Replace the tube bundle jacket as soon
as it is worn through.
Exhaust /
Ventilation
Verify that exhaust is functioning properly, providing negative
pressure at source connections.
When Pressure Loss is Detected
Component
Task
Filter
Replace filter if a change in pressure across the filter is
observed. Note: Install new VCR gaskets as required.
