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WRK – Hand controlled

Type WRK

• Plastic fan louvre shutter for exhaust ventilation
• Blades open by pulling and fixing of cord and close automatically by loosing of cord
• Maximum flow velocity 10 m/s
• Outdoor weathering resistant (UV-stabilized)
• Suitable for an operating temperature range of -30° C to +60° C
• Specific design guarantees high durability
• WRK 55 – 65 divided by middle strap
• WRK 70 – 95 divided into two parts
• WRK 100 divided into three parts
• Manufactured of high standard ecologically friendly plastic
• Number of blades varies according to the size of the shutter
• Each louvre shutter is individually carton-packed incl. deflection roller, 2-meter pull cord and a set of fastening parts (hole size 5 mm)
• Available as special fabrication (WRK-S) in all sizes

Product picsDrawings

Type	Article-No.	D	H/B	LA	T	Free cross-section (cm²)
	light grey
WRK 15	21000111	159	195	140	22	196
WRK 20	21000121	210	243	182	21	336
WRK 25	21000131	258	294	232	26	507
WRK 30	21000141	310	346	276	26	732
WRK 35	21000151	360	397	310	26	987
WRK 40	21000161	422	462	366	26	1356
WRK 45	21000171	462	501	395	31	1626
WRK 50	21000181	505	548	443	31	1942
WRK 55*	21000191	–	603	520	28	3019
WRK 65*	21000211	–	696	628	31	3969
WRK 70**	21000701	–	740	672	80	4586
WRK 71**	21000218	–	760	692	80	4859
WRK 75**	21000214	–	790	722	80	5213
WRK 80**	21000228	–	840	772	80	6031
WRK 85**	21000217	–	890	822	80	6581
WRK 90**	21000711	–	940	872	80	6926
WRK 95**	21000721	–	990	922	80	8235
WRK 100***	21000238	–	1040	972	80	9171

Dimensions in mm. Subject to technical changes – light grey ~ RAL 7035
* with middle strap / ** divided into two parts / *** divided into three parts