Product details
DG denotes the DRAGA hydraulic version within the blue family. It differs from DR blue, which has a multichannel open impeller and smaller solids passage for clearer water. This page retains the DG ratings rather than combining the two hydraulic versions. The listed motor-power range is 0.3–0.74 kW with a 220–240 V single-phase, 50 Hz supply.
The published construction uses an EN-GJL-250 cast-iron motor casing, a techno-polymer impeller, an AISI 431 stainless-steel shaft and NBR standard gaskets. The seal arrangement includes silicon-carbide and alumina-graphite mechanical seals in an oil chamber, with a V-ring protecting the seal area from foreign material.
The blue-series operating specification gives a normal maximum liquid temperature of 40°C, maximum immersion depth of 20 m and up to 30 starts per hour. The manufacturer lists free-standing and permanent installations, including coupling-device arrangements. Maximum flow and maximum head are separate curve limits; a duty point must be selected from the DG curve. The group catalog does not establish the manufacturing origin of the delivered unit.