Flowserve TX2 Triple Offset High Performance Butterfly Valve IOM User Manual
Page 20
Flow Control Division
20
17.1 Maintenance
17.4.1 Maintenance personnel should be trained before doing the repair.
17.4.2. Do not replace the gaskets when the pipeline is in operation or is pressurized.
17.4.3. Repaint the valve when it rusts.
17.4.4. If finding the parts of valve has been corroded, please replace with a new one.
17.4.5. If valve body has corroded please measure the thickness of the body to determine if the
body is still workable. Please see table below.
17.4.6. Pay examine any the abrasion of stem, disc and seats to determine if theses parts are still
workable.
17.4.7. Very clearly mark and show protection procedure when the flow medium is poisonous.
17.4.8 Before removing the valves please make sure that the piping is under no pressure and the
temperature is lower than 100
℉.
Minimum Wall Thickness