Spirax-Sarco 52589 Drain Trap

What is the min. PSI for this trap to pay out ?

This is the only pressure data we have on hand:

Limiting Operating Conditions
Max. Operating Pressure (PMO)
Up to 150 psig. The PMO depends on the model selected and the specific
gravity of the liquid being drained.
Max. Operating Temperature FA-30, 75 450˚F (232˚C)
FA-150 200 ˚F (93˚C)
Pressure Shell Design Conditions
PMA FA-30,75: 125 psig/0-450˚F 9 barg/0-232˚C
Max. allowable pressure FA-150: 150 psig/0-200˚F 10 barg/0-93˚C
TMA FA-30,75: 450˚F/0-125 psig 232˚C/0-9 barg
Max. allowable temperatureFA-150: 200˚F/0-150 psig 93˚C/0-10 barg