Hydraulic Connections; Electrical Connections - ARAG 8537 Serie Instalación Uso Y Mantenimiento

GB
5.2 Attachment
The ball valve is factory set to be attached using bolts (
- Insert the bolts into their respective seats and turn them to the stop position to prevent them from coming
out.
On valves with 1" ½ or larger coupling, we recommend also using a flat washer of suitable diameter
(Ø 8 ISO 7089).
- Insert the bolts into the holes provided (refer to section "5.4 Drilling template"), then tighten the nuts
thoroughly.
No other types of coupling are permitted than those described.
5.3 Types of bolts
To attach the valve use bolts of the following types:
• M8 ISO 4014/4017
• 5/16" ANSI B18.2
With coupling greater than 1" ½:
• M8 ISO 4014/4017 + M8 ISO 7089 washer
• M8 ISO 4162
• 5/16" ANSI B18.2
5.4 Drilling template
Refer to
Tab. 1
5.5

Hydraulic connections

Remove the protective caps and connect the inlet/outlet hoses to the valve, using the correct connections
for which it is set. Take special care, where requested, to insert the supplied O-ring correctly (threaded
ends). If, for any reason, the pipes leak at connection points, apply unsintered PTFE tape to improve sealing.
CAUTION: For the maximum operating pressure for the chosen connection, refer to
.
- Tab. 3
Once all the couplings of the valve are connected, put the system under pressure ONLY WITH CLEAN
WATER first to make sure that the connections are not leaking.
5.6

Electrical connections

The valve must be powered by means of the connector fixed to the geared motor.
To connect the valve, use suitable connectors and cables:
minimum cross-section 0.75 sq. mm / AWG 18 - for 1.3 m length (for different lengths consider the diameter
according to the power input).
- Remove the protective cap (1) from the valve (
- Position the gasket (2) fitting it on the connector (3), then connect the connector by pressing it down
completely (4). Be careful not to bend the electrical contacts on the valve while inserting it.
- Screw in the screw (5) until thoroughly tightened.
CAUTION: If the gasket is not positioned correctly, there may be infiltrations of water in the
connector and in the valve, with the consequent risk of damage to the device.
Refer to diagrams
cable.
DO NOT CONNECT THE POWER SUPPLY USING DIRECT FASTON CONNECTORS.
for the position of the drilling points for the attachment bolts.
-
Fig. VII Fig. VIII
) of the type indicated in section 5.3.
Fig. I
).
Fig. II
according to whether you are using a two or three-wire
10
Tab. 2