Gilberts enhances its security fire damper — and reduces cost
Gilberts’ GP series of perforated-face security grilles provides a solution for extract and transfer applications in high-security areas such as prisons, cell blocks and remand centres. This range of grilles is based on the preceding series and has been restyled and updated into a tougher yet still aesthetically pleasing unit. Advances in production methods and assembly make it 20% cheaper than its predecessor.
The new range is now made to meet guidelines from the Home Office and Ministry of Justice. There are two specification levels.
The MoJ level comprises a 2 mm stainless-steel fascia with 3 mm perforations on a staggered 5 mm pitch.
The Home Office specification for police use also has a 2 mm stainless-steel fascia but with 2 mm holes at 4 mm centres on a triangular pitch.
Units can be fixed with a maximum-security rear bolt providing no access from the front or for lower-security areas with non-removable ‘clutch’ screws through the flange.
Air flow can be controlled by an opposed-blade damper behind the fascia and operated through the grille face or a quadrant-type damper fitted to the plenum inlet and operated from the rear.
Units can be provided with an intumescent or curtain fire damper.
Sizes range from 150 mm square up to 600 mm square in 50 mm increments.