CAUTION!
Uncontrolled flow of feed chemical
Feed chemicals can leak through the metering pump in
an uncontrolled manner in the event of excessive pri‐
ming pressure.
– Do not exceed the maximum permissible priming
pressure for the metering pump.
Align the pipes so that 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 hose (1) - see
Fig. 5.
3. Push the hose end (1) up to the stop over the nozzle (4) and widen,
if necessary.
Ensure that the O-ring and/or the flat seal (5) is
sitting properly in the valve (6).
Never re-use used PTFE seals. An installation
sealed in this way is not watertight.
This type of seal is permanently distorted when
subjected to pressure.
The FPM flat seal PV design has a dot to enable it
to be distinguished from the EPDM flat seal.
4. Place the hose (1) with the nozzle (4) onto the valve (6).
5. Clamp the hose connector: Tighten the union nut (2) while simulta‐
neously pressing on the hose (1).
6. Re-tighten the hose connector: Pull on the hose (1) briefly, which is
fastened to the dosing head and then tighten the union nut (2) once
more.
Installing hose lines - PP, NP, PV, TT
designs
Installation, hydraulic
22
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