Special Maintenance List
When a flange part nut seat face of the valve body and bonnet becomes uneven, a flange leak will occur due to the inability to inappropriate tightening.
Low cost and short-term restoration vs. Valve Bonnet replacement.
How to Repair
Repair with a cutting machine on site.
Scope
All Flange Nut Seat Face
Work Period
6 days (Standard number of days)
Cutting Machine
Picture of Healthy Condition
Enlarged Picture
< Examples >
Before
After
