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Be sure to read the following instructions before selecting and using the PISCO devices. Also read the detailed
instructions for individual series.
1. Each device has its control direction, so check it is manual and by the mark on the device before use.
Mistaking the control direction may cause injuries on the operator or damage to the equipment.
2. Do not give tension, twist or bending to the controllers. Also, do not drop or give excessive shocks to
them. Such careless handling can inflict damage to them.
3. When the controller has a lock nut on it, tighten it by hand without using a tool. Tightening with a tool
may damage the lock nut or the controller body. Also, incomplete may lead to a loose lock nut, which in
turn may render the initial setting useless.
4. Use clean air as the pressure source. Dust or sludge may upset the control setting.
2. Notes on removal
(1) Loosen it with a proper tool, using the hexagonal or knurled part.
(2) Remove sealant sticking to the thread on the mated equipment. The sealant left sticking may enter
the peripheral equipment and cause trouble.
1. Notes on installation
(1) Tighten with a proper tool, using hexagonal or knurled part.
(2) In tightening the screw, use the tightening torque recommended in the following table. Use of a
torque higher than the recommended level may damage thread or deform gasket, thus causing
leakes. Use of a torque lower than the recommended level may cause loose screw and leakage.
■
Hexagonal part
Thread type
Thread size
Tightening torque
Metric thread
M3×0.5
0.7N·m (0.52lbf·ft)
M5×0.8
1.0 ~ 1.5N·m (0.74 ~ 1.11lbf·ft)
M6×1.0
1.8 ~ 2.3N·m (1.33 ~ 1.70lbf·ft)
Taper pipe thread
R1/8
7 ~ 9N·m (5.16 ~ 6.64lbf·ft)
R1/4
12 ~ 14N·m (8.85 ~ 10.33lbf·ft)
R3/8
22 ~ 24N·m (16.23 ~ 17.70lbf·ft)
R1/2
28 ~ 30N·m (20.65 ~ 22.13lbf·ft)
Unified fine thread
No.10-32UNF
1.5 ~ 1.9N·m (1.11 ~ 1.40lbf·ft)
Pipe thread
general purpose
(inch)
1/16-28NPT
7 ~ 9N·m (5.16 ~ 6.64lbf·ft)
1/8-27NPT
7 ~ 9N·m (5.16 ~ 6.64lbf·ft)
1/4-18NPT
12 ~ 14N·m (8.85 ~ 10.33lbf·ft)
3/8-18NPT
22 ~ 24N·m (16.23 ~ 17.70lbf·ft)
1/2-14NPT
28 ~ 30N·m (20.65 ~ 22.13lbf·ft)
Parallel pipe thread
G3/8
1/2 ~ 1 turn after hand-tightening
G1/2
■
Knurled part
Thread type
Thread size
Tightening torque
Metric thread
M5×0.8
1/6 turn after hand-tightening
M6×1.0
M10×1.0
Parallel pipe thread
G1/8
1/2 ~ 1 turn after hand-tightening
G1/4
Table. Recommended Tightening Torque
Warning:
Caution:
Common Safety Instructions for Controllers