INTRODUCTION
Torque values for port connections (British Standard Pipe Parallel (BSPP) thread ports and stud ends)
Metric tube
Outside Diameter (OD)
mm (in)
Ferrous
Non-Ferrous
BSPP
thread
G- Gas;
A- medium
coarse threads
S-Series *
L-Series **
S-Series
N·m (lb ft)
± 10%
L-Series
N·m (lb ft)
± 10%
S-Series
N·m (lb ft)
± 10%
L-Series
N·m (lb ft)
± 10%
G 1/8 A
–
6 (0.236)
–
21 (15.5)
–
12.5 (9.2)
G 1/4 A
6 (0.236)
or
8 (0.315)
8 (0.315)
or
10 (0.394)
63 (46.5)
53 (39.1)
38 (28)
32 (23.6)
G 3/8 A
10 (0.394)
or
12 (0.472)
12 (0.472)
95 (70.1)
84 (62)
57 (42)
50 (36.9)
G 1/2 A
16 (0.630)
15 (0.591)
or
18 (0.709)
136 (100.3)
105 (77.4)
82 (60.5)
63 (46.5)
G 3/4 A
20 (0.787)
22 (0.866)
210 (154.9)
210 (154.9)
126 (92.9)
126 (92.9)
G 1 A
25 (0.984)
28 (1.102)
400 (295)
400 (295)
240 (177)
240 (177)
G 1 1/4 A
30 (1.181)
35 (1.378)
525 (387.2)
525 (387.2)
315 (232.3)
315 (232.3)
G 1 1/2 A
38 (1.496)
42 (1.654)
660 (486.8)
660 (486.8)
396 (292.1)
396 (292.1)
* S-Series connectors are used with O-Ring Face Seals (ORFS).
** L-Series connectors are used with
37°
flare.
Torque values for metric port connections (Metric face-seal ports and stud ends)
Metric tube
Outside Diameter (OD)
mm (in)
Ferrous
Non-Ferrous
Metric
thread
S-Series *
L-Series **
S-Series
N·m (lb ft)
± 10%
L-Series
N·m (lb ft)
± 10%
S-Series
N·m (lb ft)
± 10%
L-Series
N·m (lb ft)
± 10%
M10 x 1
–
4 (0.157)
–
21 (15.5)
–
12.5 (9.2)
M12 x 1.5
4 (0.157)
6 (0.236)
47 (34.7)
32 (23.6)
28 (20.7)
19 (14)
M14 x 1.5
5 (0.197)
7 (0.276)
63 (46.5)
53 (39.1)
38 (28)
32 (23.6)
M16 x 1.5
7 (0.276)
9 (0.354)
84 (62)
63 (46.5)
50 (36.9)
38 (28)
M18 x 1.5
8 (0.315)
11 (0.433)
105 (77.4)
84 (62)
63 (46.5)
50 (36.9)
M20 x 1.5
10 (0.394)
–
147 (108.4)
–
88 (64.9)
–
M22 x 1.5
12 (0.472)
14 (0.551)
158 (116.5)
147 (108.4)
95 (70.1)
88 (64.9)
M26 x 1.5
–
18 (0.709)
–
210 (154.9)
–
126 (92.9)
M27 x 1.2
16 (0.630)
–
210 (154.9)
126 (92.9)
–
M33 x 2
20 (0.787)
23 (0.906)
400 (295)
400 (295)
240 (177)
240 (177)
M42 x 2
25 (0.984)
30 (1.181)
525 (387.2)
525 (387.2)
315 (232.3)
315 (232.3)
M48 x 2
32 (1.260)
36 (1.417)
630 (464.7)
630 (464.7)
396 (292.1)
396 (292.1)
* S-Series connectors are used with O-Ring Face Seals (ORFS).
** L-Series connectors are used with
37°
flare.
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