BADU® 21-81/33 G

The BADU 21 range pumps are designed for the specific demands of bath tubs, whirlpools,... more
Product information "BADU® 21-81/33 G"

The BADU 21 range pumps are designed for the specific demands of bath tubs, whirlpools, counter swim units and cleaning devices. All models in this range are non-self-priming circulation pumps, which cannot handle air. These pumps are to be installed below the water level in order for the pool water to drain independantly.

Field of application

Pool and industrial filtration units, counter swim units, air conditioning units, pool attractions, cleaning units and many other applications with a flow rate of up to 90 m³/h.


Monoblock-type pump with a bellow-type mechanical seal mounted on a plastic shaft protector sleeve. Discharge outlet swivels gradually by 90° and additionally by 29° clockwise when viewing the pump from the suction side. Complete electrical separation.

Pool size in m³: 30 - 100
Total head H in m WS: 8
Motor performance in kW (P2): 3.00
Pump casing: PPE GF 30
Gland housing: PPE GF 30
Impeller: POM GF 30 / PP GF 30
Mechanical seal: carbon / ceramic / NBR
Screws: Galvanised steel
Glue socket: ABS
Impeller nut: PP GF 30
Wear ring: Stainless steel 1.4301
Motor shaft: Stainless steel 1.4057

Special motors on request.


Standard terminal box position on the left side. Position on the right side or on top on request.
We recommend sealing the pump suction and pressure line in the thread.
BADU 21-81/.. SG conditionally self-priming up to 0.5 m, on request.

The above mentioned pumps can be used for pool water with a salt concentration of up to 0.5%, i.e. 5 g/l.

For higher salt concentrations please contact the company Speck Pumpen.

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