The well-known ETA-pump on the bearing bracket C and D is constructed in accordance with DIN 24 255 standard and completes the performance range up to max. 1800 m3/hr (6600 Imp.g.p.m., 7900 USgpm). The graduation of pump sizes enables you to select a model of high efficiency and low absorbed horsepower under any set of operating conditions.

Field of Application
General water supplies for municipalities, industry and agriculture; water works, pressure boosting and irrigation plants; circulation of hot water, cooling water and oil; as condensate, building sites, and loading pumps etc.

Design
Horizontal single and two stage centrifugal pump with volute casing flanged onto the bearing bracket. Sizes 100-50/2 and 125-50/2 are two-stage. Overhung radial flow impeller equipped with balance holes for hydraulic balancing. Renewable casing wear rings and shaft protecting sleeves.

Bearings
Axial and radial location by two oil lubricated deep groove ball bearings in the bearing pedestal. Grease lubrication on request.Uncooled soft-packed stuffing box up to 110 °C (230 °F) or cooled soft-packed stuffing box up to 140 °C (285 °F). Other constructions are available which cater for special requirements. Uncooled mechanical seals up to 140 °C (285 °F) max. may also be fitted.

Nozzle Orientations
Suction nozzle axial, discharge nozzle radially pointing upward; on sizes 200-23, 250-29 and 300-35 tangentially left pointing upward. Other nozzle positions possible upon request. Flanges machined according to DIN 2533, NP 16, from size 200 upward according to DIN 2532, NP 10.

Drive
Direct drive by an electric motor, an internal combustion engine or a turbine via a flexible coupling.