![35-mgl-600×450 [darkened]](http://i0.wp.com/envirograf.com/wp-content/uploads/2020/06/35-mgl-600x450-darkened.jpg "35-mgl-600×450 [darkened]")
Metal louvered grille fitted with intumescent strips to be fitted either side of doors or walls
£0.00 ex. Vat
Intumescent vent grilles consisting of two metal plates that hold intumescent material, fitted either side of a door or wall. The grille has ventilation slots to allow airflow. The intumescent material placed within the grille will expand in a fire and seal the openings. See also MG intumescent grilles.
– Utilised either side of a ventilation opening in fire rated doors and walls, providing up to 73 minutes integrity- Available in two forms to suit situations where only one or both sides of the wall or door are at risk
The sets are defined in two ways: the /D version is for use in situations in which the risk is double-sided (that is, the opening could be attacked by fire from either side); and the /S version is for use in situations in which it has been clearly identified that only a single side of the opening is at risk. When fitting the /S version, the intumesced plate is placed on the risk side and the plain plate is placed on the opposite side of the opening. Order the grilles to suit the opening to be protected – the external measurement of the grille needs to be at least 50mm larger than the opening to allow for fixing. Special sizes can be produced (prices quoted on request). See price list for full range of available sizes.
MG slotted type for more ventilation/MGL louvred non-viewing type. Each slot gives 6cm² and louvre 3.2 cm² free ventilation area.
REF EXT SIZE HOLE SIZE NO. OF
(H x W) (H x W) OPENINGS
SINGLE
MG1/S 150 x 200 100 x 150 010
MG2/S 200 x 200 150 x 150 014
MG3/S 275 x 200 225 x 150 022
MG3A/S 200 x 275 150 x 225 024
MG4/S 275 x 275 225 x 225 030
MG4A/S 300 x 300 250 x 250 033
MG5/S 350 x 350 300 x 300 052
MG6/S 350 x 425 300 x 375 075
MG8/S 425 x 425 375 x 375 090
MG8A/S 350 x 500 300 x 450 084
MG9/S 500 x 500 450 x 450 126
MG11/S 550 x 550 500 x 500 132
DOUBLE
MG1/D 150 x 200 100 x 150 010
MG2/D 200 x 200 150 x 150 014
MG3/D 275 x 200 225 x 150 022
MG3A/D 200 x 275 150 x 225 024
MG4/D 275 x 275 225 x 225 030
MG4A/D 300 x 300 250 x 250 033
MG5/D 350 x 350 300 x 300 052
MG6/D 350 x 425 300 x 375 075
MG8/D 425 x 425 375 x 375 090
MG8A/D 350 x 500 300 x 450 084
MG9/D 500 x 500 450 x 450 126
MG11/D 550 x 550 500 x 500 132
PLAIN PLATES
MGP1 150 x 200 100 x 150 010
MGP2 200 x 200 150 x 150 014
MGP3 275 x 200 225 x 150 022
MGP3A 200 x 275 150 x 225 024
MGP4 275 x 275 225 x 225 030
MGP4A 300 x 300 250 x 250 033
MGP5 350 x 350 300 x 300 052
MGP6 350 x 425 300 x 375 075
MGP8 425 x 425 375 x 375 090
MGP8A 350 x 500 300 x 450 084
MGP9 500 x 500 450 x 450 126
MGP11 550 x 550 500 x 500 132
THE FOLLOWING ITEMS ARE AVAILABLE WHILE STOCKS LAST:–
MG7/S 425 x 350 375 x 300 068
MG7/D 425 x 350 375 x 300 068
MGP7 425 x 350 375 x 300 068
MG9A/S 250 x 550 200 x 500 060
MG9A/D 250 x 550 200 x 500 060
MGP9A 250 x 550 200 x 500 060
MG10/S 650 x 650 600 x 600 216
MG10/D 650 x 650 600 x 600 216
MGP10 650 x 650 600 x 600 216
MG10A/S 350 x 650 300 x 600 112
MG10A/D 350 x 650 300 x 600 112
MGP10A 350 x 650 300 x 600 112
Grilles MUST be fitted in the orientation shown e.g. height = vertical / width = horizontal measurements
Please note: special colours must be quoted and stock checked
