Smoke Vents

Standard & ESFR Rated Shrink-Out Smoke Vents

Standard Shrink-Out Smoke Vents (PSO/PSOS)
Wasco’s Pyrodome® Shrink-Out Smoke Vents are gravity operated acrylic double domes designed to automatically shrink and fall out in the event of a fire. These units are generally used when buildings have no sprinkler system or they employ a standard sprinkler system designed to operate at 165 degrees.

ESFR Rated Shrink-Out Smoke Vents (PSOFR/PSOSFR)
Wasco’s “FR” Pyrodome® Shrink-Out Smoke Vents are gravity operated acrylic double domes designed to automatically shrink and fall out in the event of a fire. These units are equipped with a fusible link activated release mechanism which will ensure the unit does not activate prior to reaching the fusible link temperature. These units are designed for use with an ESFR (Early Suppression, Fast Response) sprinkler system.