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‘BL’ Blast Protection Mullions

A range of fully-encased heavy-duty mullions designed to withstand blast pressures resulting from an explosion. A choice of the material, number and size of bolts enables the selection of a device to withstand specific blast pressures.

Typical applications are:

‘BL’ Range of Blast Protection Mullions

The bolt guides and support blocks are proportionately matched to the size and material to the bolts to maintain appropriate strength and protection throughout the the build of each device.

Blast mullions can be paired together to provide additional bolts along the top and bottom edges of a door. This enables further all round support of the door to meet increased requirements that might exist, for example, in the case of wide or double doors.

Entry and exit operational choices are almost limitless, and use similar coding methods to the Slimline range, as follows:

Ordering codes follow a similar pattern to the Slimline range, so that, for example, the order code BL415 indicates a blast protection mullion with 4 point bolting (as illustrated) Key Entry, and Emergency Exit.

A selection of Enhancements can be added, again following the similar pattern and descriptions as Slimline (see Additional Features).

Keeps and fixings need to be ordered separately to suit door and frame detail and blast protection requirement.

Blast Protection Mullion, twin locking with internal key and turnknob release, left hand shown