Stop Valves Or Cocks; Dirt Filter, Safety Filter; Heat Insulation - aqua metro CONTOIL VZO Instructions De Montage Et Mode D'emploi

Stop valves or cocks

In order to avoid backflow and draining, stop valves must be mounted after the meter.
Backflow and draining cause faulty measurements and may damage the meter.
Tank

Dirt filter, Safety filter

Filters should be fitted to prevent any damage to the meter from impurities in the liquid.
The filter mounted in the meter inlet is only a safety filter and is too small to act as a dirt filter.

Heat insulation

The measurement transducer must not be insulated. This could cause its permitted temperature range to be exceeded.
The permitted temperature ranges for the meter must be observed.
16
Pump
Filter
Maximum mesh width for filters
Nominal
size
DN15
DN20
DN25
DN40
* If a dirt filter with the given mesh size is used, the safety filter in the meter
inlet can be removed.
No heat insulation
in this area
Oilmeter
Valve
Meter type
VZF, VZO VZFA, VZOA
0,250 mm 0,100 mm
0,400 mm* 0,100 mm
0,400 mm* 0,250 mm
0,600 mm 0,250 mm
Heating coil (winding)
Pipe
Heat insulation