
Flow Sensor
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http://www.pisco.co.jp
Please be sure to read before handling the product. Please refer to "safety instructions", "common safety instructions for products listed in this manual", "common safety instructions for flow controller" from page 24 through 35.
27
Common Safety Instructions for Products Listed in This Manual
Thread type
Thread size
Tightening torque
Sealock color
Gasket material
M3×0.5
0.7N·m
M5×0.8
1 ~ 1.5N·m
SUS304, NBR
M6×1
2 ~ 2.7N·m
–
Metric thread
M3×0.5
0.5 ~ 0.6N·m
M5×0.8
1 ~ 1.5N·m
POM
M6×0.75
0.8 ~ 1N·m
M8×0.75
1 ~ 2N·m
R1/8
7 ~ 9N·m
Taper pipe thread
R1/4
12 ~ 14N·m
White
–
R3/8
22 ~ 24N·m
R1/2
28 ~ 30N·m
Unified thread
No. 10-32UNF
1 ~ 1.5N·m
–
SUS304, NBR
1/16-27NPT
7 ~ 9N·m
Pipe thread
1/8-27NPT
7 ~ 9N·m
General purpose
1/4-18NPT
12 ~ 14N·m
White
–
(inch)
3/8-18NPT
22 ~ 24N·m
1/2-14NPT
28 ~ 30N·m
*.Since it may different by product, please also refer to the detailed safety instruction of each product.
Table 2. Tightening Torque, Sealock Color and Gasket Material
8. Cautions on the installation of joint body
(1) For installation of a product, please tighten it with a proper tool using outer hexagonal part or internal hexagonal part.
Please pay attention that the tool and lock-claws are not come in contact when inserting the tool into hexagonal hole.
The loss of tube lock function may be caused by deformation of fore-end of lock-claws and may cause loosing tube.
(2) In tightening the screw, use the tightening torque recommended in Table 2.
・
Use of a torque higher than the recommended level may damage thread or deform gasket, thus causing leaks.
・
Use of a torque lower than the recommended level may cause loose screw and leakage.
(3) With the joint whose piping direction will not change after tightening, make adjustment within the recommended range of
tightening torques.
9. Cautions on the removal of joint body
(1) When removing the joint body, loosen it with a proper tool, using the outside or inside hexagon.
(2) Remove sealant sticking to the thread on the mating equipment. The sealant left sticking may enter the peripheral equipment
and cause trouble.
10. Please make plumbing so that torsion, tension, moment load, vibration, and a shock are strained to tube and fitting. If not,
damage to a fitting, or squashed, burst or loosen tube may be caused.