9
CORRECT METHOD TO APPLY THE FEMALE CONNECTORS
To ensure an optimum connection between the female connectors and the adapters mentioned in this ma-
nual, it is necessary to carry out the following procedure, which is different from the one for the assembly
of the rigid pipes.
Female connectors without gasket (metal/metal connection)
Screw the nut manually and then tigthen 1/4 turn by means of a spanner.
Female connectors with O-RING
Screw the nut manually and then tighten 1/4 turn by means of a spanner.
In any case make sure that the pipe is correctly aligned before tightening the nut to the adapter.
DRIVING TORQUE
The values shown in the tables refer to to galvanized steel connectors. Different values
correspond to connectors of different materials.
ROTARY METRIC FEMALE CONNECTOR jic
37°
Thread
UNF
Dimension
Driving torque Nm
Nominal torque
min / max
7/16-20
-4
15
9 - 21
1/2-20
-5
20
13 - 27
9/16-18
-6
30
18 - 42
3/4-16
-8
50
30 - 70
7/8-14
-10
69
44 - 94
1.1/16-12
-12
98
63 - 133
1.3/16-12
-14
118
73 - 163
1.5/16-12
-16
140
90 - 190
1.5/8-12
-20
210
135 - 285
1.7/8-12
-24
290
200 - 380
2.1/2-12
-32
450
300 - 600
ROTARY FEMALE CONNECTOR
BSP
Thread
UNF
Driving torque Nm
Nominal torque
max
G1/4
20
15 - 25
G3/8
34
27 - 41
G1/2
60
42 - 76
G5/8
69
44 - 94
G3/4
115
95 - 135
G1
140
115 - 165
G1.1/4
210
140 - 280
G1.1/2
290
215 - 365
G2
400
300 - 500
ROTARY METRIC FEMALE CONNECTOR
Thread
UNF
External
diameter
of the pipe
Driving torque Nm
Nominal torque
min / max
M 12x1.5
6
20
15 -25
M 14x1.5
8
38
30 - 45
M 16x1.5
8
45
38 - 52
10
M 18x1.5
10
51
43 - 85
12
M 20x1.5
12
58
50 - 65
M 22x1.5
14
74
60 - 88
15
M 24x1.5
16
74
60 - 88
M 26x1.5
18
105
85 - 125
M 30x2
20
135
115 - 155
22
M 36x2
25
166
140 - 192
28
M 42x2
30
240
210 - 270
M 45x2
35
290
255 - 325
M 52x2
38
330
280 - 380
42
ROTARY FEMALE CONNECTOR ORFS
Thread
UNF
Dimension
Driving torque Nm
Nominal torque
max.
9/16-18
-4
14
16
11/16-16
-6
24
27
13/16-16
-8
43
47
1-14
-10
60
68
1.3/16-12
-12
90
95
1.3/16-12
-14
90
95
1.7/16-12
-16
125
135
1.11/16-12
-20
170
190
2-12
-24
200
225
2-1/2-20
-32
460
490
SERVICE
PREFACE
