Common Problems

• Not repairing leaking equipment within the required amount of time

specified by the applicable regulation.

• Improperly placing components on the Delay of Repair list.

• Not having a justifiable reason for why it is technically infeasible to

repair the component without a process unit shutdown.

• Not exploring all available repair alternatives before exercising the Delay

of Repair exemption (specifically as it pertains to valves and “drill and tap” repairs).

Best Practices

• Develop a plan and timetable for repairing components.

• Make a first attempt at repair as soon as possible after a leak is detect­ed.

• Monitor components daily and over several days to ensure a leak has been successfully repaired.

• Replace problem components with “leakless” or other technologies.

Industrial Valve is fully equipped to repair all sizes  of angle, ball, check, gate, globe and plug valves. We not only repair low pressure bolted bonnet valves, we specialize in high pressure seal valves. In addition, Industrial Valve has on-site, in-line boring and flange facing capabilities for valves and flanges that are too large and too expensive to remove and replace.

21 Point Inspection

  1. Pre-inspection to determine the general condition of the valve.
  2. Match marking of major components for proper orientation of parts.
  3. Disassemble, blast, clean all parts to bare metal.
  4. Inspect all parts for damage or wear.
  5. Inspect valve stem for thread wear and pitting of stem packing area.
  6. Inspect valve stem nut (yoke bushing) for thread wear.
  7. Inspect valve disc (wedge) for cuts / wear.
  8. Inspect valve seats (seat rings) for cuts / wear.
  9. Inspect valve bonnet for pits / cuts of packing area.
  10. Inspect valve bonnet for cuts / wear of body bonnet gasket landing.
  11. Inspect valve body for cuts / wear of body bonnet gasket landing.
  12. Inspect body flange faces for cuts / wear.
  13. Inspect hand wheel for pits / breakage.
  14. Inspect hand wheel nut thread wear.
  15. Inspect stem nut hand wheel area for thread wear.
  16. Inspect stem nut retainer for wear / thread wear.
  17. Inspect packing gland.
  18. Inspect packing gland flange.
  19. Inspect body flanges for hole wear.
  20. Inspect body bonnet flanges for hole wear.
  21. Inspect valve name plate.