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Liquid end with bleed valve
Version 2.0
Installation
• Assemble foot valve.
• For this purpose shorten the free suction line end so far that the foot
valve is hanging just above the floor of the container.
• For metering solutions with impurifications or feculence shorten the
free end of the suction line so far that the foot valve is hanging at least
50 mm over the floor of the container.
10.1.4 Installation discharge line (general information)
ATTENTION:
Lay the discharge line in such a way that pressure peaks during
the metering stroke do not exceed the maximum permissible
operating pressure (if necessary use a relief valve)!
WARNING:
When operating the metering pump against a closed shut-off
element on the delivery side, the resulting pressure build-up
can reach a multiple of the maximum permissible
backpressure!
This can cause the delivery line to burst!
To avoid this, it is advisable to install a ProMinent
multifunction valve which limits the maximum pressure
which can be reached!
10.1.5 Installation bybass bleed line
For the liquid end versions NP and PP a bleed valve (17) with bypass (18)
is present on the liquid end.
• Plug on hose line with 4 mm interior dia. (max. 6mm) onto the bypass
hose nozzle, preferably use PVC soft 6 x 4 mm.
• For PE lines this should be secured against slipping off for example by
using a quick fastening cable clamp.
• Lead the free end of the line back into the supply tank.
• Connect the discharge line directly to the discharge connection and to
the injection valve.
Page 27 of 88 pages
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