IMT offers a complete programme of compact and economically interesting backflow preventers. Among the available designs you may find for instance an extraction valve, in other words a bibcock with an integrated backflow preventer type BA (see Fig. 300). This product can be used in the garden to connect an irrigation unit.
Also the item Fig. 302 is very interesting; it can be installed on an already existing bibcock.
With the backflow preventers Fig. 307 all existing water columns can be completed according to the European standard at reasonable costs (see DVGW worksheet W408).
Also the new item Fig. 309V belongs to this group: compact as the others and very simple to install, it is equipped with the drain and can be used everywhere it’s necessary to have a connection with a drainage tubing.
The filling assembly Fig. 305K offers in one product all you need to fill and re-fill the heating system according to the standard: backflow preventer type BA, shutoff valve, pressure reducing valve,
filling unit, pressure gauge and drainage.
The heating filling unit Fig. 321 has been recently added to the IMT backflow preventer programme. It combines the filling assembly unit Fig. 305K with the water demineralization
one Fig. 321.K and water meter. With the assembly Fig. 305K you avoid a water backflow in the potable water system and at the same time you treat water according to VDI 2035.

Thanks to a mixture of selected ion exchange resins and a pH stabilizer the water is demineralized and alkalized to pH values between 8,2 and 8,7. Also the hardness is reduced to <1° dH and water conductivity to < 100 μS/cm. Water softening, demineralization, pH-stabilisation, reduction
of water conductivity: all in one single device!