After servicing the LOX system, allow it to stabilize (vent) for at least how long before use, buildup, or reading gauges?

After servicing the LOX system, allow it to stabilize (vent) for at least how long before use, buildup, or reading gauges?

• A. 30 minutes
• B. 15 minutes
• C. 60 minutes
• D. 45 minutes

Answer: (A)

Stabilizing after servicing the LOX system gives the boil-off gas time to vent away and the system’s pressure and temperature to settle, so gauges and readings reflect a true, steady state rather than transient conditions from maintenance. This purge helps ensure safe operation and accurate readings when you start using the system again. The minimum time typically recommended is 30 minutes, which provides enough opportunity for purge, boil-off, and stabilization without unnecessary delay. Shorter times may leave pockets of gas or warm spots, while longer times aren’t usually required for normal operations.

Stabilizing after servicing the LOX system gives the boil-off gas time to vent away and the system’s pressure and temperature to settle, so gauges and readings reflect a true, steady state rather than transient conditions from maintenance. This purge helps ensure safe operation and accurate readings when you start using the system again. The minimum time typically recommended is 30 minutes, which provides enough opportunity for purge, boil-off, and stabilization without unnecessary delay. Shorter times may leave pockets of gas or warm spots, while longer times aren’t usually required for normal operations.