2A Adjustable ventilator, aluminium 2B Adjustable ventilator, plastic 3A Adjustable ventilator, aluminium, with insect screen 3B Adjustable ventilator, aluminium, compound, with insect screen G41 Adjustable ventilator, aluminium, extruded G42 Adjustable ventilator, aluminium, build in, with insect screen

13E Adjustable valve vent, circular, stainless steel.13F Exhaust air valve, circular, plastic 13G Supply air valve, circular, plastic

G31 Door grille, aluminium G31A Door grille, aluminium, adjustable G31K Door grille, plastic

20A Ducting, Aluminium, Semi-Flexible 20B Ducting, Aluminium, Flexible 20C Ducting, flexible, plastic 20D Ducting, accessories

GF3 Filtermedia, classification G3 GFC3 Filter Cassette GFC3I Filter cassette, build in

G8H Louvre grille, fire resistant G8HB Grille, fire resistant G8HD Door grille, fire resistant G8HP Louvre grille, fire resistant, High Performance G8HPR Louvre grille, fire resistant, High Performance, round G8K Mastic, fire resistant G8P Seal, fire/smoke resistant G8R Louvre grille, fire resistant, round G8S Louvre grille, fire resistant, non vision G8SC Louvre grille, fire + smoke resistant G8SD Door grille, fire resistant, non vision G8V Flame taming screens

1A Fixed louvre ventilator, aluminium 1B Ventilation hood, aluminium 1C Fixed louvre ventilator, aluminium, flat 1D Fixed louvre ventilator, aluminium, special production 1E Fixed louvre ventilator, stainless steel 1F Fixed louvre ventilator, copper 1G Fixed louvre ventilator, polished brass 1H Fixed louvre ventilator, round 1K Fixed louvre ventilator, plastic 6A Fixed louvre ventilator, aluminium, large louvres 6B Heavy-duty fixed louvre ventilator, aluminium, large louvres

13A Fixed louvre ventilator round, aluminium 13B Fixed louvre ventilator, round, plastic 13C Ventilator, spherical, stainless steel 13D Ventilator, spherical, stainless steel, high free-air space 13H Grille, stainless steel, adjustable.14A Louvre grille, cast aluminium, round

G54 Linear bar grille, aluminium G55 Linear bar grille, aluminium G56 Linear bar grille, aluminium G57 Linear bar grille, aluminium, high free-air space

14B Louvre grille, cast aluminium, square models G1 Louvre grille, aluminium G11 Louvre grille, aluminium, glaze in G12 Louvre grille, aluminium, glaze in, non vision G1GS Louvre grille, aluminium, with insect screen G1S Louvre grille, aluminium, special G2 Louvre grille, aluminium, non vision G21 Louvre grille, aluminium, surface mounted G2W Louvre grille, detachable G3 Louvre grille, aluminium, heavy-duty G5 Louvre grille, aluminium, adjustable blades G58 Supply grille, aluminium, adjustable G70 Louvre grille, stainless steel G72 Louvre grille, alu-zinc steel GDS Droplet separator

12A Pressure relief damper, aluminium 12B Pressure relief damper, plastic 12C Pressure relief damper, stainless steel 12D Pressure relief damper, aluminium, built in

20E Rectangular ducting system, plastic, 110x55 mm 20F Rectangular ducting system, plastic, 150x75 mm.

G32 Through wall grille, aluminium

G61-06 Ventilation grille, extruded aluminium, 60 mm G61-08 Ventilation grille, extruded aluminium, 80 mm G61-10 Ventilation grille, extruded aluminium, 100 mm G61-13 Ventilation grille, extruded aluminium, 130 mm G61-15 Ventilation grille, extruded aluminium, 150 mm

7 Ventilation plate, aluminium G62 Ventilation plate, aluminium, flat

G31K Door grille, plastic

Door grilles manufactured from plastic. These grilles are designed for doors of minimum thickness 28 mm and maximum 45 mm. Free-air space approx. 55%.

Application

Usable in doors and dividing walls, supplied with a matching back frame. Grilles have chevron section blades, non vision.

Standard

plastic white or brown.
3 matching assembly fasteners

Range

Article number	:	G31K-4412 W
Specification	:	white
Build in	:	440 x 120 mm
EAN code	:	8713628144064
Box Qty	:	1
Weight gramme	:	450
LD cm²	:	210

Pressure drop	1 Pa	2 Pa	5 Pa	10 Pa	20 Pa
dm³/s	17	23	37	52	74
m³/u	60	85	134	189	267