External Station

DMJ25

Smallest DMJ station: 25L tank, single pump unit, 27 m³/h at 750W or 32 m³/h at 1100W, with maximum head of 11 or 13 m. Station dimension 320 × 565 × 434 mm.

Power: 750 W / 1100 W
Max head: 11–13 m
Max flow: 27–32 m³/h

Get a Quote Download Catalog

DMJ25 External Station unit, product photo from the 2026 catalog

Product photo of the DMJ25, taken from 2026 English catalog, p. 19.

02Technical data

Parameter table

Every value below is the figure printed for this model in the 2026 catalog. Fields the catalog leaves blank are omitted here rather than estimated.

Voltage

220V / 380V

Frequency

50Hz

Power input (P1)

750 W / 1100 W

Insulation class

Class F

Noise level (dry running)

< 60 dB

Protection class

IP68

Maximum flow

27–32 m³/h

Maximum head

11–13 m

Start level

15 cm

Stop level

9 cm

Tank volume

25 L

Pump unit

Single pump

Control type

Pressure / float

Pump start-stop frequency

60 starts per hour

Station dimension

320 × 565 × 434 mm

Free passage

35 mm

Source: 2026 English catalog, p. 19

Inlet and outlet sizes, and any field the catalog leaves blank, are issued with the order-specific technical file.

03Packing

Packing and container loading

The 2026 catalog prints packing tables for the WL range only. The DMJ25 is shipped as a station unit, so crate dimensions, gross weight and loading plan are issued with the quotation for the selected pump and control configuration.

Station ships as one unit with the pump, level control and tank assembled.
Crate dimensions and gross weight depend on the selected pump input and control configuration.
Container loading is planned per order rather than per unit.

04Structure

Construction points

01
Tank capacities from 25L to 460L, from a basement bathroom set to commercial and public venues
02
Corrosion-resistant polyethylene tank with airtight construction
03
Multiple pre-formed inlet ports in different directions for installation flexibility
04
Dual-level control combining pneumatic air-pressure sensing and a float switch
05
IP68 pump station with motor insulation class F on the DMJ25, DMJ90, DMJ170 and DMJ460
06
Free passage from 35 mm to 60 mm depending on the series

05Installation

Installation conditions

DMJ25 dimension drawing from the 2026 catalog — Dimension drawing and performance curve of the DMJ25, cropped from 2026 English catalog, p. 19.

Buried installation: the tank sits below ground and the pump chamber is reached for service from above, outside the stored volume.
Inlet ports are pre-formed in several directions, so the pipe run can enter from the side that suits the excavation.
Level control uses air-pressure sensing plus a float switch, and the station is limited to the starts per hour printed for the series.

06Fit

Where it fits, and where it does not

Suited to

Whole-building drainage below the main sewer level
Basement toilets and shower rooms in commercial buildings
Retrofit projects where a buried tank is the only option

Check before selection

Excavation depth, tank bedding and inlet invert levels must be checked on site before ordering, and the station is limited to the start-stop frequency printed for the series.

07Related