Parker Phastite PH-10-4N-TMS, Руководство по установке

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15
Phastite
®
Assembly
i) All tube pre-fabrication (cutting, bending and alignment) should be completed before Phastite
®
is fully assembled
(Failure to do so may result in the Phastite
®
fitting being exposed to undesirable side loading).
ii) Ensure that all other fittings in the tube-run are correctly assembled before Phastite
®
is fully assembled.
iii) Free lengths of tube should be supported throughout Phastite
®
tube-run assembly procedure.
iv) Care should be taken to minimise any additional stresses to Phastite
®
joints.
Figure 1
Handling Tubing
From the receiving dock to point of installation, special attention is necessary to prevent scratching and burring the
O.D. of the tubing. This is especially important for gas service. Low-density gases such as helium and argon cannot
be sealed with damaged tubing.
Make certain not to drag tubing across any surfaces such as truck beds, shelves, or storage racks, the floor and (or)
ground of any plant/ construction site. This is important for tubing of all materials, particularly for copper and aluminium.
Besides scratching, improper handling can create out-of-round tubing. Out-of-round tubing will not fit the I.D. of the
ferrule(s) or the body bore properly and will cause leakage (Figure 1).
Tube end preparation is essential in assuring leak-free
systems. Some important points to consider are:
•
Tube handling
•
Tube cutting with either a tube cutter or hacksaw
•
Deburring the tube end
•
Cleaning the tube end
Figure 2
Cutting the Tube End
To ensure a good joint, tube must be cut off square. This
can be accomplished with either a tube cutter or hacksaw.
Figure 2 and Figure 3 - Enlarged section of tube showing
differences in tubing cut with a tube cutter (a) and a
hacksaw (b).
Figure 3