Visiflon PTFE Hose
Visiflon or otherwise know as Hyperline V is designed for use in a wide variety of general purpose industrial applications, such as automotive, steam transfer, refrigeration and many others. Although Hyperline V is also suitable for some light duty process fluid applications, Corroflon or Bioflex is usually preferred due to the thicker PTFE wall and helical reinforcement.
Hyperline V is very flexible and kink resistant, but has a convoluted bore which limits fluid flow rates, and reduces internal “cleanability”.
It also requires de-convoluting before assembly.
Hyperline FX is the preferred alternative which, solves these problems without reducing the flexibility too much.
Hyperline V is available in the following grades:
- Hyperline V,TO – Natural PTFE Tube Only, no braid
- Hyperline V,AS – Antistatic Black PTFE Tube Only, no braid
- Hyperline V,SS – Natural PTFE Tube, external 304 Stainless Steel Braid
- Hyperline V,AS,SS – Antistatic PTFE Tube, external 304 Stainless Steel Braid
To special order, Hyperline V can also be supplied with an orange polypropylene yarn braid (Hyperline V, PB or Hyperline V,AS,PB)
Temperature Rating – For Stainless Steel Braided (SS) hose, the temperature rating is from -70° (-94°F) to +260°C (+500°F), but the maximum working pressure (MWP) must be reduced by 1% for each 1°C above 130°C (1% for each 1.8°F above 266°F).
For Polypropylene Braided (PB) hose, the maximum working pressure reduces by 5% for each °C above 80°C (5% for each 1.8°F above 176°F). Maximum working temperature = 100°C (212°F).
Pressure Resistance – The pressure rating for SS grades are as listed and adjusted for temperature. Pressure rating for PB hose grades are 50% of those for SS hose grades.
Tube Only (TO) grades can only be used at pressures up to 2 Bar (30 psi).
Vacuum Resistance – SS braided Hyperline V hoses are fully vacuum resistant up to 130°C (266°F).
Flow Rates – Turbulent flow always occurs in hoses with rough or convoluted internal surfaces. This reduces flow rates and can cause a whistling noise if gases are passed at high flow rates. Use Hyperline FX to solve such problems if necessary.
Assembly – Hyperline V can be assembled to hydraulic hose fittings in the normal way after the convolutions have been partially flattened out by means of a special tool, called a Visiflon Opening Tool, available from Aflex Hose.
This tool screws in to the convolutions, either manually or mounted on to an electrical motor and then screws out to leave the convolutions flatter and able to accept the insertion of a hydraulic fitting.
Contact Aflex Hose to further advice concerning Opening Tools.
Applications – Automotive and general industrial – where good flexibility is required for larger bore hose applications, (above ¼” bore size).
Hyperline FX is preferred to Hyperline V in all applications except those where the superior flexibility and kink resistance of Hyperline V is required.
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