The backwash filters pureliQ:R and RD are designed for the filtration of drinking and industrial water. It may be used in the pressure as well as in the negative pressure range. A backwash, however, can only be performed if the filter is used in the pressure range.
Solid substances, such as rust flakes or sand grains, may cause serious corrosion damage to pipes and fittings. The backwash filters pureliQ:R and RD ensure that it does not come to that. It represents the important first stage of water treatment and effectively protects water installations in households, trade and industry from malfunctions and corrosion damage. The unfiltered drinking water flows into the filter from the inlet side and then from the outside in through the filter element and to the pure water outlet. Foreign particles >100 μm (DVGW version) are retained.
Our new backwash filters pureliQ:R and RD ensure reliable filtration day by day thanks to the manually operated backwash that has to take place every 6 months. During the backwash process, the water flows through the filter element in the reverse direction. The particles retained in the filter are washed out via an outlet, together with the backwash water. The backwash filters pureliQ:R and RD is designed according to the specifications of DIN EN 13443-1 and intended for installation in the drinking water system according to DIN EN 806-2 (installation immediately downstream of the water meter system).
pureliQ:R/RD |
20 | 25 | 32 |
Connection diamater | 3/4″ | 1″ | 1 1/4″ |
Flow capacity pureliQ:R, Δp = 0.2 bar [m³/h] | 3.2 | 4.2 | 5.0 |
Flow capacity pureliQ:R, Δp = 0.5 bar [m³/h] | 5.1 | 6.7 | 8.0 |
Flow capacity pureliQ:RD, according to DIN EN 1567 [m³/h] | 2.3 | 3.6 | 5.8 |
Installation length without screw connections [mm] | 100 | 100 | 100 |
Installation length with screw connections [mm] | 185 | 182 | 191 |
Overall height pureliQ:R [mm] | 385 | 385 | 385 |
Overall height pureliQ:RD [mm] | 405 | 405 | 405 |
Order no. pureliQ:R | 101320 | 101325 | 101330 |
Order no. pureliQ:RD | 101370 | 101375 | 101380 |