Dry Running; Cavitation; Overheating - Speck pumpen BADU Jet Wave Traduction Des Instructions D'utilisation D'origine

Install the pump/unit in a manner which reduces structure-

borne and airborne noise transmission. When doing so,
observe relevant regulations.
If the pipe forces are exceeded, leaks can occur at the screwed
connection or the pump itself.
 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.
 If the pump leaks, the unit may not be operated and must be
disconnected from the mains power supply.
2.9.2

Dry running

If run dry, mechanical seals and synthetic parts can be destroyed
within only a few seconds.
 Do not allow the pump to run dry. This also applies to
checking the rotation direction.
 Purge air from pump and suction line prior to start-up.
2.9.3

Cavitation

Incorrect configuration of the pipe dimensions and non-
observance of the prescribed mounting depth can cause
cavitation.
 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 25 cm.
 Ensure that the suction line does not leak.
Open the valves completely.

2.9.4

Overheating

The following factors can result in the pump overheating:
• Excessive pressure on the delivery side.
• Motor overload switch set incorrectly.
• Ambient temperature which is too high.
 Do not operate the pump with the valves closed, minimum
flow rate 10 % of Qmax.
 For pumps with a three-phase motor, install a built-in or
external overload switch and set it correctly.
 Do not exceed the permitted ambient temperature of 40 °C.
01|2018
Safety
EN 13