SMC Networks JSXF Series Operation Manual page 8

Notes for Piping: Direct Port Type
Caution
1. Use a steel tube for the valve's inlet and outlet sides.
2. Screw tightening torque for piping
When attaching fittings to valves, tighten with the proper
tightening torque shown on the right.
Notes for Piping: Compression Type
Warning
1. Do not use the compression fitting of the valve to support the valve piping.
The piping may be disconnected from the valve. Be sure to mount the valve to the fixed piping.
(The compression fitting does not have a function to secure and hold the valve.)
Caution
1. Use a steel tube for the valve's inlet and outlet sides.
2. Tightening of the compression nut
Be sure to tighten the compressor nut sufficiently and
make sure that there is no leakage, loosening, or rattling.
Note 1) Mount the valve to the fixed piping.
Note 2) Insert the piping through to the end to
prevent the piping from being slanted to the valve.
Note 3) Do not expose the piping to oil or moisture.
Otherwise, the valve comes off easily.
Note 4) Sealing performance may decrease due to the
deterioration of seals and other reasons.
Additionally tighten the compression nut regularly.
Notes for Piping: Immersion Type
Caution
Mounting the immersion type
Please see the figure below when installing the valve to the tank you have prepared.
Be sure to tighten the pipe assembly sufficiently and make sure that there is no leakage,
loosening, or rattling.
Step 1) Insert the pipe assembly vertically into the OUT
port of the valve assembly.
(If the assembly is tilted when inserting,
the O-ring inside the valve may be damaged.)
Tightening torque for piping
Thread
1･1/2
Additional tightening angle after
hand-tightening (guide for nut tightening)
Step 2) Additionally tighten to fix the pipe assembly until the
① Fix the bottom support using a wrench, etc. so that it
body and the bottom support contact the tank.
will not rotate. See figure a).(You can also do the same
by fixing as shown in figure b).) When fixing the
bottom support, align the curved surfaces of the tank
②Additionally tighten the hexagon portion of the pipe
and the bottom support.
assembly.
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Proper tightening torque
N·m
1/4 8 to 12
3/8 15 to 20
1/2 20 to 25
3/4 28 to 30
1 36 to 38
40 to 42
Additional
Size tightening
angle
3/4(20A) 90° to 270°
1(25A) 135° to 315°
1･1/2(40A) 150° to 330°