STFRTPM FIRE BREAK DAMPER FROM 200 TO 500 DIAM. ELECTROPNEUMATIC CLOSURE ATEX

Firebreak sash shutter with closure by gravity have been designed to leave all the passage surface free in the pipe, it’s a very important element in the extraction systems where there is material or dust in transit in the air. In the sash shutter the diaphragm is completely outside the passage of the material and it remains intact over time.
CONSTRUCTION’S MATERIAL:
Galvanized steel, body thickness 3mm, pipe unions 2mm.
FEATURES:
the bottom side is openable, to allow the outless of possible material can deposit on working.
Internal max air temperature 120°C.
PIPES’ ENDING: L= Smooth; B= with edges (STANDARD); F= with flanges (smooth or pressed)
ACCESSORIES ON DEMAND:
Microswitch of position (Cod. MIC1)
Microsmitch MIC1 and green light open position cod. LUMA (STFRTMA)
Copper air connection pipes on STFRTMA Epoxy powded coated RAL 3020 Fuse: 108°C
IMPORTANT CHARACTERISTICS FOR THE CHOICE OF FIREBREAK SASH SHUTTER
1- Real closing time;
2- to be sure the diaphragm insulation is always saved without possibility to damage it.
In the open position of firebreak sash shutters it’s out of damage.