34
Tightening level for connecting sections
Tightening level
Reference
torque
(N
·
m)
OD 4 mm nylon pipe
(Valve discharge port)
Turn compression bushing with
hands until it stops and then
tighten it 2/3 turn with a
spanner, etc.
3.5
OD 6 mm nylon pipe
Turn compression bushing with
hands until it stops and then
tighten it 2/3 turn with a
spanner, etc.
3.5
OD 6 mm copper tubing
&
steel tubing
(Undercut joint)
Turn the nut part with hands
until it stops and then tighten it
1/4 turn with a spanner, etc.
21
OD 8 mm copper tubing
&
steel tubing
(Undercut joint)
Turn the nut part with hands
until it stops and then tighten it
1/4 turn with a spanner, etc.
25
Taper screw for tubing
Rc1/8
(Pump discharge port
&
junction)
Turn the undercut joint with
hands until it stops and then
tighten it two and a half to three
turns with a spanner, etc.
7.1