Instal Filter SA products

A gap valve is a simple and reliable shutting-off device. It is designed to remove dusts from containers operating at sub-pressure without a decompression risk. It is the most frequently applied by us e.g. beneath mechanical dust extracting units, cyclo-filters and bag filters. Basic element of a gap valve IF150 is a replaceable rubber element. This is very important since during operation, as an effect of sub-pressure, internal parts of lower part of the rubber element of the valve adhere tightly to each other. In this way, air can`t penetrate the interior and dust can`t leave the interior. After relevant quantity of dusts gathers over the rubber element (to equalize the sub-pressure), it is opened and dusts are ejected. It lasts till the sub-pressure in the valve closes it.