Envirograf MG and MGL Intumescent Grilles
Metal grilles fitted with intumescent material to be fitted either side of doors or walls.
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Consisting of an inner and outer plate to be used either side of a ventilation opening in fire rated doors and walls.
Available in two variations to suit situations where only one or both sides of the wall, or door, are at risk. The inner and outer plate houses the intumescent material which, in a fire, would seal up slots and louvres giving one hour fire protection.
Two types of plates can be supplied: the /D version is for use in situations in which the risk is double-sided (that is, the opening could be vulnerable to 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). Available in 15 standard sizes, the grilles are finished in brown, white, or stainless steel. and can be ordered as slotted for more ventilation, or louvred for non-viewing type. Each slot gives 6cm² and louvre 3.2cm² free ventilation area.
See drop down menu for full range of available sizes.
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.
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