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5.2 Fastening of SUS Pipe
SUS pipe installation
Angle of re-tightening (°)
Item to be prepared:
Wrench (1/4 inches)
In connection of the SUS pipe, fasten it in the following manner.
(1)
Attach the SUS setscrew and screw it in with your hand
until it is finger-tight.
(2)
Using a wrench (1/4 inches), re-tighten the SUS setscrew
(with a tightening torque of 4 [N•m]) so that it will be
secured firmly. Regarding an angle of re-tightening, refer
to the table shown below.
If the SUS setscrew is not secured firmly, it may become
loose during operation of the instrument to cause such a
fault as liquid leakage or unpredictable stop of analysis.
To connect a new pipe
(Ferrule not yet caulked)
SUS ferrule
SUS pipe
NOTE:
In a case where the setscrew is made of resin, just
finger-tighten it securely. Do not re-tighten it with a
wrench. If the setscrew made of resin is overtighten,
the inside diameter will be deformed to cause an
abnormal increase in pressure, resulting in an
adverse effect or trouble in operation.
270 to 360
SUS setscrew
5 - 3
To reconnect an existent pipe
(Ferrule already caulked)
30 to 60
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