Start Up - ProMinent delta General Operating Instructions

4

Start up

Starting up the metering pump
WARNING!
Dangerous reactions are possible due to contact of feed
chemical with water
The feed chemical can mix and react in the liquid end with
water remaining after testing in the factory.
– Read the safety data sheet on the feed chemical.
– Blast the liquid end with compressed air.
– Flush the liquid end with a suitable medium through the
suction connector.
CAUTION!
Danger with dangerous feed chemicals
Provided the following handling instructions are followed,
contact with the feed chemical is possible.
– If the feed chemical is dangerous, take appropriate
safety precautions when carrying out the following han‐
dling instructions.
– Observe the feed chemical safety data sheet.
CAUTION!
Warning of feed chemical spraying around
An unsuitable feed chemical can damage the parts of the
pump contacted by the chemical.
– Take into account the resistance of the material con‐
tacted by the chemical when selecting the feed chemical
- refer to the ProMinent
equipment catalogue or at
Reliable metering cannot be guaranteed after the
–
metering pump has been idle for a long time, as the feed
chemical can crystallise in the valves and on the dia‐
phragm. Check the valves and diaphragm regularly - see
product-specific operating instructions.
Only adjust the stroke length when the pump is running.
–
The metering pump should prime at 100% stroke length,
–
as the priming lift depends on the stroke volume when
the liquid end is empty. If the metering pump has to
prime at a smaller stroke length and is not priming,
reduce the priming lift.
SEK-type only: The suction lift corresponds to the pri‐
–
ming lift, as some gas always remains in the liquid end
with gaseous media.
1. Drain the liquid end -
2. Fill the liquid end - Ä 'Filling the liquid end' on page 18 .
3. Check the pump connectors and connections for leak-tightness.
4. Check the suction valve and discharge valve for leak-tightness and
tighten if necessary.
5. Check the liquid end for leak-tightness and tighten the screws on
the dosing head if necessary - see below for starting torque.
6. Only with bleed valve: Check whether the bleed valve is closed.
® resistance list in the product
www.prominent.com .
Ä 'Draining the liquid end' on page 18 .
Start up
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