Centrifugal pumps/ mechanical seal TOE-GN / GA / GI series
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TOE-GN / GA / GI Series Heat transfer pumps for heat transfer oils up to 350 °C and hot water up to approx. 160 °C With mechanical seal Volute casing PN 16 Bearing bracket 360 and 470

TOE-GN / GA / GI Heat transfer pumps with mechanical seal Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Main applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 TOE-GN / GA / GI Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

TOE-GN / GA / GI Heat transfer pumps with mechanical seal TOE-GN / GA / GI Series Heat transfer pumps for heat transfer oils up to 350 °C and hot water up to approx. 160 °C With mechanical seal Volute casing in spheriodal graphite cast iron PN 16 Bearing bracket 360 and 470 The TOE Series is also available with magnetic coupling (see catalogue TOE-MN / MA / MI). Casing dimensions in acc. with EN 733 Hydraulic power ratings in acc. w. EN 733 Base plate Closed coupled version Inline design Available sizes Denomination The denomination of a centrifugal pump of the TOE-GN / GA / GI series is:...

TOE-GN / GA / GI Heat transfer pumps with mechanical seal Standard conditions at site • Relative humidity during continuous operation max. 55% • Ambient temperature up to + 40 °C • Permissible altitude up to 1000 m above sea level Deviations from the site conditions specified herein must already be disclosed in the inquiry. Flow rate The permissible operating range of centrifugal pumps depends on • • • • • • • impeller shape speed type of liquid viscosity bearing load heat dissipation - particularly with regard to insulated volute casings clearance between the net positive suction head of...

TOE-GN / GA / GI Heat transfer pumps with mechanical seal Design details Pumps of the TOE-GN / GA / GI series are single-stage, single-entry centrifugal pumps with volute casing in process design (disassembly of the cartridge insert while the volute casing remains in the conduit). The tolerances of the mating dimensions are subject to the EN 735 standard. Allocation of components Pumps of this series are part of a modular system, whose components can also be used for other pump series. The complete bearing brackets including the impeller are used in the series with mechanical seal. For the...

TOE-GN / GA / GI Heat transfer pumps with mechanical seal Cooling fan The coupling half at the pump side is equipped with a cooling fan as a standard, which supports heat dissipation in the area of the ball bearing and the mechanical seal. Utility connections For the exact positions and dimensions of the utility connections, refer to the dimension drawings of the pump on pages 12 et seq. Quench reservoir If required, test certificates in acc. with DIN 55350-18 can be provided for the individual tests, which, however, has to be indicated in the order. The task of the quench reservoir is to...

TOE-GN / GA / GI Heat transfer pumps with mechanical seal Hydraulic tests (performance curves) If required, hydraulic tests in acc. with ISO 9906, accuracy class II, can be implemented and the characteristic curves measured for the corresponding impeller diameter documented. The pumps are coated with highly heatresistant white aluminium paint, colour code RAL 9006. This option has to be indicated accordingly in the order. The purpose of this test is to verify that the duty point of the manufactured pump complies with the contractual duty point. Subject to technical modifications and error.

TOE-GN / GA / GI Heat transfer pumps with mechanical seal TOE-GN / GA - Performance curves 50 Hz Total differential head Flow rate Total differential head Flow rate Subject to technical modifications and error.

TOE-GN / GA / GI Heat transfer pumps with mechanical seal TOE-GN / GA - Performance curves 60 Hz 0 Total differential head Flow rate Total differential head Flow rate Subject to technical modifications and error.

TOE-GN / GA / GI Heat transfer pumps with mechanical seal TOE-GI - Performance curves 50 Hz 0 Total differential head Flow rate Total differential head Flow rate Subject to technical modifications and error.

TOE-GN / GA / GI Heat transfer pumps with mechanical seal TOE-GI - Performance curves 60 Hz 0 Total differential head Flow rate Total differential head Flow rate Subject to technical modifications and error.

TOE-GN / GA / GI Heat transfer pumps with mechanical seal TOE-GN, bearing bracket 360 - Pump dimensions Pump dimensions Foot dimensions Utility connections G 1/8 Mechanical seal housing vent (at horizontal installations) seal housing G 1/8 Mechanical installations) vent (at vertical G 3/8 Volute casing drain pressure G 1/8 Inlet drilled) indicator connection (not Outlet pressure indicator connection G 1/4 (not drilled) Flanges in acc. with ANSI 150 lbs G 1/8 Mechanical seal housing drain G 1/8 Mechanical seal leakage tube Quench optionally Keyway DIN 6885 Volute casing (102) insulation only...

TOE-GN / GA / GI Heat transfer pumps with mechanical seal TOE-GN, bearing bracket 470 - Pump dimensions Pump dimensions Foot dimensions Utility connections Flanges in acc. with ANSI 150 lbs Holes 4 8 pressure G 1/8 Inlet drilled) indicator connection (not G 1/8 Mechanical seal housing vent (at horizontal installations) seal housing G 1/8 Mechanical installations) vent (at vertical G 3/8 Volute casing drain G 1/8 Mechanical seal housing drain G 1/8 Mechanical seal leakage tube Outlet pressure indicator connection G 1/4 (not drilled) Quench optionally Keyway DIN 6885 Volute casing (102)...

TOE-GN / GA / GI Heat transfer pumps with mechanical seal TOE-GN, bearing bracket 360 and 470 - Cross-sectional drawing and part list 710 710.1 731 411.1 Mechanical seal Volute casing Casing cover Foot Shaft Impeller Bearing, complete Kugellager Bearing cover Flat gasket Ring gasket Shaft seal housing Retaining ring Tolerance ring Washer Shim washer Rivet Tube Screw joint Stud Screwed plug Vent screw Socket head cap screw Hexagon nut Lock washer Lock ring Key Plate Version with quench Flat gasket Disk Counter flange Stud Hexagon nut Ring gasket Radial shaft seal Tube Screw joint Screwed...