14
GB
5.2
Attachment
The ball valve is factory set to be attached using bolts (
) of the type indicated in section
.
- 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
for the position of the drilling points for the attachment bolts.
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.
WARNING: For the maximum operating pressure for the chosen connection, refer to
.
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.
Summary of Contents for 853 3 44 Series
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