# CTE Resource Center - Verso - Diesel Equipment Technology III Task 493159124

CTE Resource Center - Verso

Virginia’s CTE Resource Center

Identify causes of control valve leakage (internal/external).

Definition

Identification should include
  • performing a visual inspection for any external control valve leaks
  • performing an operational test of the control valves to identify internal valve leakage problems
  • repairing or replacing as necessary.

Process/Skill Questions

  • What is the major cause of internal control valve leakage?