Air Pressure Control Valves and Air Pressure Stabilisers

Protecting individual doors

The protection mechanism for individual doors is examined below based upon the assumption that only one door is open at any time. Within the overall supply volumes available it is not possible to provide protection for more than one open door at a time.

Scrub - Corridor door open

Single door - Required flow 0.39 m3/s. (Sterile) - (Transitional)

Opening this door causes the pressure in the Theatre to fall to 3 Pa thus closing the stabilisers in the Theatre and diverting the required airflow across this door.