The Waterloo fire rated ventilators are suitable for 1 hour rated doors and masonry partitions. The units, which satisfy BS 476 Part 22, incorporate intumescent elements which expand and carbonise when exposed to temperatures in excess of 150°C, thereby sealing off the ventilation opening.
The ventilators may be beaded directly into the door/partition opening or covered by optional steel grilles to suit aesthetic requirements.
WFV units are constructed from hollow PVC extrusions enclosing PALUSOL 210 wire reinforced intumescent media. The extrusions are retained in a horizontal louvre pattern by reinforced vertical members and an enclosing frame system.
WFV - Silver PVC
Grilles - PPM 9010
Other colours available on request
Minimum size - 150 x 150mm
Maximum size - 600 x 600mm
Width (W) and height (H) are nominal opening sizes
Tested and Rated in accordance BS 476 Part 22.
Certificate number CF 564 (TS47).
WFV cores should be fitted into a cleanly cut aperture with a maximum gap of 5mm around the frames; gaps larger than this should be filled with intumescent paste. The cores may be retained by using a bead frame. If supplied, the pressed steel cover grilles should be screw fixed through the frame holes provided.
Note: Not suitable for plasterboard portions.
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