DANFOSS RSA 40 L 070L3230 / oil pump

Application

The RSA series oil pumps are designed and manufactured to meet market requirements of
high quality and a high degree of functional and operating reliability.
The RSA series can be used for most light mineral fuel oils such as paraffins, kerosene and
gas oils.
The RSA series can also be used for other media having a corresponding or higher
classification. The RSA series is suitable for small and medium size central heating systems,
industrial burners and process plant.
The RSA series can be adapted for use as a feed pump in, for example, annular pipe or feed
systems, by replacing the standard compression spring with a special spring.
The RSA series includes a loose flange as an accessory. This can be screwed onto the neck
shoulder to make the pump fully interchangeable with other makes of pumps.
The RSA series consists of five sizes of pump. Three of them are defined at:
Operating pressure 7 bar*
Oil viscosity 4.3 mm2/s
Speed 2800 r/min
Type RSA 28: Output 51 l/h

Construction

Pumps in the RSA series are of modular construction so that the pump housing with its shaft
seal and valve systems are identical for all five types. The pump system itself varies with the
pump size and direction of rotation.
RSA 28, 40 and 60 pumps, designed for lower capacity duties, use gearwheel sets with single
oil feed inlets and outlets where only one shaft bearing is needed. These pumps all have the
same external dimensions and utilies the same filters. Nozzle line connection are G 1/8.
RSA 95 and 125 pumps have hydraulically balanced, deeper gearwheel sets requiring two
shaft bearings (fig. 3). The dual oil feed inlets and outlets allow these larger pumps to maintain
the high throughput effiency of the smaller units. They are fitted with larger filters and covers.
Nozzle line connections are G 1/8 for RSA 95 and G 1/4 for RSA 125.
The well proven form of the gearwheel set together with the pressurised lubrication of the
bearings, ensures minimum wear for all moving parts.

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