KMM
Covering/protection grille
KMM - The cover grille, grate is used to cover the ends of piping and openings in walls to prevent objects from entering the piping.
Properties
•For covering of gaps and outlets on ducts preventing entry of objects
•Effective area up to 78%.
•Made of steel, Coated according RAL
Specifications
Grilles are used to cover side holes and free ends of piping, or to be fitted into the wall. Grilles prevent passing larger objects. Grilles are fixed to side holes or free ends of duct with screws 6.3 x 16 according to EN ISO 1481. Free ends of duct are adapted by notching in corners up to length of '"C'" and bending. Corners remain free. Notching, bending, cutting the side holes out, boring, and fitting the grill is made during assembly. Grilles with frame for fitting to the wall are supplied as a unit. Grilles are designed for macroclimatic areas with mild climate according to EN 60 721-3-3 zm.A2. Grilles are suitable for systems without abrasive, chemical and adhesive particles.