3S-FIRESTOP

Reliable model F4FR-NF Non-Ferrous Concealer™ is designed specifically for MRI rooms. The sprinkler assembly was tested in a laboratory with a magnetic field of 6 Tesla. The test exposed the sprinklers to magnetic fields and field gradients that exceed a standard peripheral MRI room environment. There was no recorded influence of the magnetic field on the sprinklers.

This sprinkler is a quick response standard coverage sprinkler that uses a 155°F (68°C) 3mm diameter glass bulb in a concealed sprinkler frame with a drop-down deflector. This assembly is recessed into the ceiling and finished with a flat cover plate. The push-on/thread off cover plate provides ½” (13mm) of cover adjustment.