What is the maximum extension period for critical hoses?

• A. 20 years
• B. 12 years
• C. 5 years
• D. 2 years

Answer: (A)

The idea is to balance safety with maintenance efficiency by using a risk‑based life extension for critical hoses. Hoses are designed to last a long time, but they age and can be affected by wear, environment, and the stresses of operation. The policy sets a maximum extension window so you don’t rely on indefinite service, while still allowing continued use if the hose proves its integrity through rigorous checks.

If a hose is within this maximum extension period, it must pass thorough inspections and tests—visual checks, non-destructive testing, and pressure tests—to confirm it remains sound. When it does, you can extend its use up to the twenty‑year cap. If any indication of degradation appears, replacement is required. This approach keeps critical systems safe without unnecessary downtime from over‑replacing components that still meet safety criteria.