Principles Of Operation - GE Hot Lips Tube Sealer Operator's Manual

2 Principles of operation

Introduction
The HOT LIPS TUBE SEALER is used to seal tubing permanently. This is done by
clamping the tubing to be sealed in a precise position between two heated jaws.
The molten tubing is pressed together and cooled under high pressure resulting in
a permanent, leak-proof, butt seal.
Compatible tubing
Only thermoplastic tubes listed in Appendix A can be used for the sealing operation.
See Appendix A for all approved tubing types. It is not possible to seal materials
such as PTFE or silicone as these materials are not thermoplastic.
Sealing method
The HOT LIPS TUBE SEALER can handle various size tubing diameters specified in
Appendix A without the need for any additional holders or adaptors. The machine
squeezes the tubing to be sealed to a precise thickness based on the material of
the tubing and its diameter. The tubing is then melted by heat and cooled under
pressure to form a seal. This unique "mold-free" process permits different sizes and
materials to be sealed without requiring specific dyes. The low thermal mass of the
heated jaws can be readily air-cooled in a matter of minutes eliminating the need
for cooling water or refrigeration.
Safety function
The jaws of the HOT LIPS TUBE SEALER can exert several tons of pressure. During
the clamping operation, the GO button must be pressed and held down until the
jaws have closed completely (indicated by a beep). If the button is released
prematurely, the jaws will immediately go to the full open position. Furthermore,
the jaws will not heat until they are in closed position. In the closed position, it is not
possible to bring anything into contact with the heated jaws.
HOT LIPS TUBE SEALER Operator Manual 87-4500-07 AI
Principles of operation 2
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