Stuart Turner TFL Automatic Flow Switch User Manual

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b) Vertical suction models

This pump range are self venting and hence no priming plugs are fitted. Turn on

liquid supply and open outlet valve to allow pump to fill and vent.

4. Pre-Start

Check

Always ensure the pump is in a positive head position with flooded suction. A gravity

flow of approx. 0.6 l/min (RGFL/ESFL) or approx. 1 l/min (KFL, LFL & TFL) from the

highest outlet is required to operate the integral flow switch.

5. Starting

a) Switch on power and open terminal fitting. Pump should start and stop upon

demand.

b) Open and close all outlets in turn associated with the pump allowing liquid to flow

from each outlet until all air is purged. As each outlet is opened and closed the

pump will start and stop respectively.

c) Any tap or control valve within the system when opened and closed will now turn

the pump on/off. Check system for leaks, if clear the system is now operating

correctly.

TFL

LFL

Fig. 15

RGFL, RGDFL

ESFL

KFL

Priming
Plug