CAUTION
•
KEEP IMPORTANT 5 POINTS FOR PIPING WORK
(1) Take away dust and moisture (Inside of the
connecting pipes.)
(2) Tight the connection (between pipes and unit)
(3) Evacuate the air in the connecting pipes using
a VACUUM PUMP.
(4) Check gas leak (connected points)
(5) Be sure to fully open the packed valves
before operation.
Cap
Torque
Cap Size (H)
Valve Rod
Cap
Service
Port Cap
H17 - H19
H22 - H30
H14
H17
14~18 N.m
(1.4 to 1.8 kgf·m)
33~42 N.m
(3.3 to 4.2 kgf·m)
8~12 N.m
(0.8 to 1.2 kgf·m)
14~18 N.m
(1.4 to 1.8 kgf·m)
<Packed valve handling precautions>
•
Open the valve stem all the way out, but do not try
to open it beyond the stopper.
•
Securely tighten the valve cap with torque in the
following table
Fig. 10-4-11
A
H
Hexagon wrench
is required.
Service Port Cap
Valve Rod Cap
Pipe size of Packed Valve
Size of Hexagon wrench
12.70 mm and smallers
A = 4 mm
15.88 mm
A = 5 mm
FILE NO. SVM-17057
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