How to overcome vacuum collapse

PTFE hose is a relatively thin walled product and is therefore subject to vacuum collapse if not properly specified and protected. With single braided smooth bore hose the unbonded metal braid (the pressure handling element the hose) is of limited value in a vacuum application, especially as temperatures increase. The addition of internal or external springs or bonded covers is the best way to overcome potential vacuum collapse. We suggest than to use double braid smooth bore hose, our type FHMDC, or the corrugated our type CLWBSP reinforced with an external spiral.


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