6
Printed in Italy - EE167/0105
9- Valve installation
Verify the line pressure is lower of the maximum working
pressure admitted to the valve.
Check correspondence of flow direction with arrow
printed on valve body.
Check correct alignment of connecting pipes.
Remove the end caps and make sure no foreign
body is entered into the valve during handling.
Install in an area that is protected from rain and
water splashes or drops.
Threaded models:
1. Put sealing agent onto the pipe thread (avoid
excessive quantities of fittings glue which could
enter in the valve and damage the seal seat).
2. Screw the pipes using proper tools only. Do not use
unit as lever because damage to the valve stem
could result.
Flanged models:
1. Position the gasket and insert the bolts.
2. Screw the nuts tightening them crosswise and using
proper tools only.
Avoid overtightening and mount tension free.
Following chart shows the maximum values of bending
moment (F
max
), torque (T
max
) and screws driving torque
(C
max
), according to EN161.
Connections
F
max
(Nm) t<10 s
T
max
(Nm)
C
max
(Nm)
Rp3/8 70
35 -
Rp1/2 105
50 -
Rp3/4 225
85 -
Rp1 340
125
-
Rp1¼ 475
160 -
Rp1½ DN40
610
200
50
Rp2 DN50
1100
250
50
DN65 1600 - 50
DN80 2400 - 50
DN100 5000 - 80
DN125 6000 - 160
DN150 7600 - 160
DN200 7600 - 160
Fig. 4
Valve may be mounted with coil in horizontal or vertical
position. Coil may be oriented 360 degrees in any
direction.
10- Electrical connections
(IEC 730-1)
Check correspondence between valve voltage rating and
line power supply, before making any electrical
connections.
1. Switch off power supply and remove protection
cover.
2. Connect power cables to connector plug terminal
board.
3. Screw back the plug cover, taking care to use all
gaskets properly, because this could condition the
valve life duration.
Fig. 5
WARNING
•
To prevent product damage and dangerous
situations, read the Installation and Service
Instructions carefully.
•
Turn off all power before servicing any part of
the system.
•
Perform leak and functional tests after mounting.
A gas leak detection spray may be used also.
•
Coil and DIN plug must be replaced with identical
spare parts only.
•
If the coil is turned, make sure the cap is
properly tightened and the coil is locked.
•
Use all gaskets properly (void warranty).
•
All wiring must be in compliance with local and
national codes.
•
Make sure all works are performed by qualified
technicians only.
F
max
T
max
C
max