Pressure Surges; Blockages In The Pump; Drainage; Risk Of Frost - Speck pumpen BADU 93 Serie Manual Del Usuario

2.9.5

Pressure surges

Valves which close suddenly can cause pressure surges which far
exceed the maximum permissible housing pressure of the pump.
Install shock absorber or air vessel.

Avoid valves which close suddenly or, if present, close them

slowly.
2.9.6

Blockages in the pump

Pieces of dirt in the suction line can clog and block the pump.
Do not operate the pump without a strainer basket or a

strainer basket handle.
Check how easily the pump rotates before starting it up and

after longer idle or storage periods.
2.9.7

Drainage

An insufficient drain gap can damage the motor.
Do not block or seal the drain gap between the pump

housing and the motor.
2.9.8

Risk of frost

Drain the pump/unit and pipes at risk of freezing in plenty of

time.
Remove the pump/unit during periods of frost and store it in a

dry room.
2.9.9

Safe use of the product

Safe use of the product is no longer guaranteed in the following
instances:
• If the pipework is not in proper condition.
• If the pump seizes. See point 2.8 on page 11.
• If protective devices are damaged or missing, e.g. protection
against accidental contact.
• If there is stress on the pump/unit or pipes during installation.

2.9.10 Contamination of the pump

Pay attention to clean work stations when working on the pump.
No magnetisable metallic particles may be kept in the vicinity of
the magnetic coupling.
06|2021
Safety
EN 13