Flowserve Seal Gard - Manual (Page 8)

Use of the Seal Gard to troubleshoot sealing system problems
Type of Observation Cause Suggested Action
Installation
Flowserve seal
Seal Gard I
Single • no flow in tube • seal fluid flow • check supply pressure
• low flow alarm interrupted • clean control valve
• pressure • correct back pressure
reversal problem
Seal Gard II
Double • no flow in tube • seal fluid flow • check supply pressure
• low flow alarm interrupted • clean control valves
• low pressure
• high pressure • pressure • correct back pressure
reversal problem
• high flow alarm • inner seal • close return-from-seal
• low pressure failure control valve
• adjust supply control
valve to acceptable
dilution & schedule
seal repair
Seal Gard II
Tandem • no flow in tube • seal fluid flow • check flush source
• low flow alarm interrupted
• high pressure • primary (inner) • close supply control
• product in outlet seal failure valve
• adjust return-from-
seal valve to accept-
able loss level
• route discharge to
approved disposal
• schedule seal repair
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