18
CONTOIL
®
Installation of the meter on the suction side of a pump
If the oil meter is installed on the suction side of a pump, consideration must be given to the maximum pressure loss at the maximum per-
mitted flow rate and the maximum viscosity that occurs. Installed filters must also be taken into account.
Draining pipes
If the pipes are to be drained with compressed air at a later stage, stop valves must be provided on both sides of meter.
Special requirements - filling and dosing units
For filling and dosing, the valve must be fitted between meter and discharge.
The shorter the pipe section between valve and discharge, the higher the accuracy. Fast opening and closing of the valve should be
avoided as this can cause pressure or water hammer. Water hammer damages the meter.
Electrical installations
Electrical installations are subject to legal regulations which must be observed when planning the facility.
Electrical installations must only be carried out by authorised specialists.
In the layout of the installation, the following factors should be taken into account during plant design:
• ancillary devices connected to the meter
• maximum cable lengths with/without repeater
• junction boxes, cable guides
• environmental disturbances
Electrical installations are subject to special regulations, which require mandatory compliance.
Oilmeter on pressure side
Oilmeter on suction side
Pump
Filter
Pump
Filter
Measuring
Draining
Pump
Filter
Pump
Valve
