SERVICE DATA
TIGHTENING TORQUE
2
2
TIGHTENING TORQUE 2E0BO002
Joint for piping
Joint for piping (O-ring seal type)
Bring a magnet close to the port to check the port material.
If the port is made of steel, the magnet sticks to the port. If the
port is made of aluminum, the magnet does not stick to the port.
Nominal thread
diameter
Tightening torque
Port material: Steel
Port material: Cast steel
N·m ft-lb N·m ft-lb
R1/8 11.8 ± 1.2 8.7 ± 0.8 10.8 ± 1.1 8.0 ± 0.7
R1/4 29.4 ± 2.9 21.7 ± 2.1 24.5 ± 2.5 18.1 ± 1.7
R3/8 53.9 ± 5.4 39.8 ± 3.9 49.0 ± 4.9 36.2 ± 3.5
R1/2 88.3 ± 8.8 65.1 ± 6.4 73.5 ± 7.4 54.3 ± 5.3
R3/4
147.1 ± 14.7 108.5 ± 10.7 127.5 ± 12.7
94.1 ± 9.3
R1
196.1 ± 19.2 144.7 ± 14.3 171.6 ± 17.2 126.6 ± 12.5
Nominal thread
diameter
Tightening torque
Port material: Steel
Port material: Aluminum
N·m ft-lb N·m ft-lb
G1/8 19.6 ± 2.0 14.5 ± 1.5 19.6 ± 2.0 14.5 ± 1.45
G1/4 34.3 ± 4.9 25.3 ± 3.6 26.5 ± 4.9 19.6 ± 3.6
G3/8 53.9 ± 4.9 39.8 ± 3.6 41.6 ± 4.9 30.7 ± 3.6
G1/2 64 ± 4.9 47 ± 3.6 64 ± 4.9 47.0 ± 3.6
G3/4 132 ± 4.9 97 ± 3.6 88.2 ± 4.9 65.0 ± 3.6
G1 196 ± 9.8 145 ± 7.2 107.9 ± 9.8 79.6 ± 7.2
G1-1/4 225 ± 9.8 166± 7.2 117.7 ± 9.8 86.8 ± 7.2
G1-1/2 255 ± 9.8 188 ± 7.2 137.3 ± 9.8 101.2 ± 7.2
Nominal thread diameter
Tightening torque
N·m ft-lb
7/16-20 UNF 16.7 ± 2.0 12.3 ± 1.4
1/2-20 UNF 22.6 ± 2.0 16.6 ± 1.4
9/16-18 UNF 31.4 ± 2.9 23.1 ± 2.1
3/4-16 UNF 53.9 ± 4.9 39.8 ± 3.6
7/8-14 UNF 64 ± 4.9 47 ± 3.6
1 1/16-12 UNF 102.0 ± 5.9 75.2 ± 4.4
1 3/16-12 UNF 132 ± 7.8 97 ± 5.8
1 5/16-12 UNF 135.3 ± 7.8 99.8 ± 5.8
1 5/8-20 UNF 181.4 ± 9.8 133.8 ± 7.2
2E0BO02
O-RING
O-RING
JOINT TORIQUE
O形环