Troubleshooting - Gemü BB02 Betriebsanleitung

13 Troubleshooting

13 Troubleshooting
Error
The product doesn't open or doesn't open
fully
The product doesn't close or doesn't
close fully
Valve body connection to piping leaks
Valve body leaks
GEMÜ BB02
Possible cause
Operating pressure too high
Foreign matter in the product
Operating pressure too high
Foreign matter in the product
Incorrect installation
Flange bolting loose/thread leaking
Flange seals faulty
Sealing material faulty
Threaded connections / unions loose
Incorrect installation
Seat and flange seals incorrectly
mounted
Seat and flange seals faulty
Valve body leaks or is corroded
48 / 56
Troubleshooting
Operate the product with operating
pressure specified in datasheet
Remove and clean the product
Operate the product with operating
pressure specified in datasheet
Remove and clean the product
Check installation of valve body in piping
Retighten flange bolting / reseal threads
Replace flange seals
Replace sealing material
Tighten threaded connections / unions
Check installation of valve body in piping
Mount seat and flange seals correctly
Replace seat and flange seals
Check valve body for damage, replace
valve body if necessary
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