9
2.5
Hydraulic connections for control units
The Orion 2 flowmeters to be integrated in the control units are available with both flanged 863/873 (in previous 463/473 series) and T5 fork coupling
connectors.
If you need to integrate the flowmeter in an existing tie rod control unit previously configured without a flowmeter, remember to order new tie-rods
in order to reconstruct the unit correctly after the flowmeter has been incorporated (Ref. ARAG general catalog, control unit section, assembly kit).
ONLY use ARAG tie-rods. If other tie-rods are used, the warranty is automatically void.
Flowmeters with fork coupling do not need other accessories and can be directly inserted in the existing control unit provided it already comes with
T5 fork coupling.
CAUTION: BEFORE INCORPORATING THE FLOWMETER TO AN EXISTING CONTROL UNIT, MAKE SURE THAT THE OPERATING
PRESSURE IS SUITED FOR THAT SPECIFIC CONTROL UNIT.
FLOWMETERS WITH T5 FORK COUPLING CAN WITHSTAND A MAXIMUM PRESSURE OF 20 BAR.
ARAG is not liable for damages to the equipment, persons, animals or objects caused by failure to observe the above instructions.
Remember to correctly position seals and O-Rings in the coupling seats.
Note: usually, in standard control units, the flowmeter is inserted between the control valve and the section valves unit (Fig. 8a-8b).
This does not prevent the assembly of the flowmeter in any other part of the control unit, however, keep in mind that if the flowmeter is positioned in
different points the values may differ depending on the connected components.
Filtering the liquid is recommended.
In order to obtain a correct reading, contact a dealer or installer that can give you advice on how to correctly position the
flowmeter inside the control unit.
FLANGED CONNECTOR
FORK COUPLING
Incorporating flanged connector
Incorporating fork coupling
Fig. 8a
Fig. 8b
