Preventing Material Damage; Leakage And Pipe Breakage; Dry Run; Cavitation - Speck pumpen BADU Jet PRIMAVERA Installation

2.9

Preventing material damage

2.9.1

Leakage and pipe breakage

Non-observance of the curing time of the ABS bonding can result in
leaks and flooding.
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Vibrations and thermal expansion can cause pipe breakage.
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If the pipe forces are exceeded, leaks can occur at the screwed
connections or the pump itself.
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2.9.2

Dry run

If run dry, mechanical seals and synthetic parts can be destroyed within
only a few seconds.
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2.9.3

Cavitation

Incorrect configuration of the pipe dimensions and non-observance of
the prescribed mounting depth can cause cavitation.
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12/2014 VG 766.2320.050
Observe the curing time of at least 12 hrs for the ABS bonding.
Provide sufficient ground drainage.
Install the system in a manner which reduces structure-borne and
airborne noise transmission. When doing so, observe relevant
regulations.
Do not use the pump as a fixed point for the pipe line.
Connect pipes free of load and mount them elastically. Install
compensators if necessary.
Do not allow the pump to run dry. This also applies to checking the
rotation direction.
Purge air from the pump and suction line prior to start-up.
If the distance between the pump and the main housing is great,
ensure an almost loss-free flow when configuring the pipes.
Observe the prescribed mounting depth of 300 mm.
Ensure that the suction line does not leak.
Open the valves completely.
2 Safety
EN 55