ProMinent Beta BT4b Operating Instructions Manual page 24

Installation, hydraulic
Install hose lines - design PP, NP, PV, TT
24
CAUTION!
Uncontrolled flowing feed chemicals
Feed chemicals can leak through the metering pump in an
uncontrolled manner in the event of excessive priming pres‐
sure.
– The maximum priming pressure for the metering pump
may not be exceeded - please refer to the product-spe‐
cific operating instructions.
The pipes are to be aligned in such a way as the metering
pump and the liquid end can be removed from the side, if
necessary.
1. Cut off the ends of the hoses at right angles.
2. Pull the union nut (2) and clamp ring (3) over the tube (1) - see
figure Fig. 5.
3. Push the tube end (1) up to the stop over the nozzle (4). Widen it, if
necessary.
Ensure that the O-ring and flat seal (5) is properly
fitted to the valve (6).
Used PTFE seals may never be re-used. An installa‐
tion sealed in this way will not be watertight.
The reason for this is that this type of seal is perma‐
nently distorted when subjected to pressure.
In order to enable it to be distinguished from the
EPDM flat seal, the FPM flat seal design PV has a dot.
4. Place the tube (1) with the nozzle (4) onto the valve (6).
5. Clamp the hose connector: Screw the union nut (2) tight while
simultaneously pressing on the tube (1).
6. Re-tighten the hose connector: Pull on the hose (1) briefly, which is
fastened to the dosing head, and tighten up the union nut (2) once
more.