KSO-F exhaust air valve

The KSO-F is developed for use as a fire damper in exhaust ventilation systems.

The valve is tested according EN 15650:2010 and tested on fire safety according EN 13501-3. The CE marked KSO-F fire valve is used to prevent fire and smoke spread to other ducts. The valve is approved in fire class E60 / E120. A spring fuse will close the valve when the temperature (in the vicinity) reaches 70 °C.

The KSO-F has a low noise level and good natural sound attenuation.

characteristics

• for vertical and horizontal systems
• the heat-sensitive spring can be replaced
• wide adjustment range
• quick and easy to install
• good noise dampening
• easy to set airflow
• provided with mounting collar

safety-fuse

The fusing point of the fuse is standard 70 °C, fuses with a different temperature are available on request.

construction

The KSO-F is manufactured from powder coated steel sheet. The powder coating gives a high surface finish and good impact and scratch resistance.

The valve body is provided with a synthetic foam rubber gasket to form an airtight sealing against the mounting frame. The separate mounting ring is made of galvanized sheet steel. Each valve comes with the mounting ring DKT.

By default the valve is provided with a cleanvent coating. Standard color is white (RAL 9010). Other colors available on request with a minimum order quantity and different delivery times.

The fuse in the KSOF valve is produced with a soldering with two different materials. Due to this soldering, the fuse will break during the high temperature environment eg during fire situation. The fuse will break at 72 degrees. This soldering is between two blade parts and it is not visual if the soldering is made perfectly. There is three phases where the soldering in the fuse is tested mechanically: at fuse blade manufacturer, at fuse manufacturer and at our plant during assembly of the valve. During these production phases and if there occurs less mechanical tolerance in the soldering, the fuse is rejected.

Unfortunately some cases have occurred where the fuse has passed all the production phases without failing and it has broken only during the transport or in the summertime if the fuse has been in the direct sunlight. We apologize for the non-conform valve and replace with new valve naturally