External Station

DMJ90

90L station with a two-pump unit, 50 mm free passage and a start-stop rating of 120 starts per hour, in a 720 × 620 × 456 mm station.

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

Flow is quoted in m³/h exactly as the catalog station table prints it; the compact WL range is quoted in L/min.

DMJ90 External Station unit, product photo from the 2026 catalog

Product photo of the DMJ90, taken from 2026 English catalog, p. 25.

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
20 cm (double pump) / 16 cm (single pump)
Stop level
10 cm
Tank volume
90 L
Pump unit
Double pump
Control type
Pressure / float
Pump start-stop frequency
120 starts per hour
Station dimension
720 × 620 × 456 mm
Free passage
50 mm
Ports (per dimension drawing)
Inlet DN100 (Ø110) · Inlet DN40 (Ø50) · Outlet DN80 (Ø90)

Source: 2026 English catalog, p. 25

Port sizes above are transcribed from the dimension drawing of this model. Any field the catalog leaves blank is omitted rather than estimated, and the order-specific technical file confirms the final connection set.

03Packing

Packing and container loading

The 2026 catalog prints packing tables for the WL range only. The DMJ90 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

  1. 01

    Tank capacities from 25L to 460L, from a basement bathroom set to commercial and public venues

  2. 02

    Corrosion-resistant polyethylene tank with airtight construction

  3. 03

    Multiple pre-formed inlet ports in different directions for installation flexibility

  4. 04

    Dual-level control combining pneumatic air-pressure sensing and a float switch

  5. 05

    IP68 pump station with motor insulation class F on the DMJ25, DMJ90, DMJ170 and DMJ460

  6. 06

    Free passage from 35 mm to 60 mm depending on the series

05Installation

Installation conditions

DMJ90 dimension drawing from the 2026 catalog
Dimension drawing and performance curve of the DMJ90, cropped from 2026 English catalog, p. 25.
DMJ90 buried installation diagram from the 2026 catalog
Installation diagram of the DMJ90, cropped from 2026 English catalog, p. 25.
  • 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

Adjacent models

All models

DMJ25

01

External Station

Power
750 W / 1100 W
Max head
11–13 m
Max flow
27–32 m³/h
Protection
IP68

DMJ50

02

External Station

Power
750 W / 1100 W
Max head
11–13 m
Max flow
27–32 m³/h
Protection
IP68

DMJ60

03

External Station

Power
750 W / 1100 W
Max head
11–13 m
Max flow
27–32 m³/h
Protection
IP68

08 / Inquiry

Ask about DMJ90

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DMJ90

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