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Pneumatic tubes PTFE TECAFLON®
Sintered polytetrafluoroethylene

PTFE Tecaflon

PTFE was discovered at the end of the 1930’s, every year its remarkable properties increase the scope of its applications despite the difficulty of its production.
TECAFLON® tubes are made from white sintered polytetrafluorethylene.
They are obtained by lubricated calibrated extrusion in piston machines, which explains the limited lengths of tubes that can be obtained.
TECAFLON® tubes are :
- Inert to chemical products.
- Very resistant to temperature.
- Fragile under mechanical efforts and abrasion.
- Provided with an excellent slipping coefficient.
- Insensitive to ultra violets.
- Nonflammable.
TECAFLON® tubes are intended for the most severe uses acceptable by thermoplastics with regards to temperature and chemical aggression.
Their admissible working temperature ranges from -170°C to +200°C. they are also of food quality and have the American FDA (Food & Drug Administration) approval. TECAFLON® tubes are rigorously calibrated, although production tolerances on thicknesses are larger than for other tubes.
The following table gives a rapid comparison between ptfe and other high performance fluoride plastic materials such as FEP (fluroethylenepropylene) and PFA (perfluoroalkoxy) whose extrusion is easier.
Tto resume, fep has mechanical, chemical and electrical properties practically identical to those of ptfe, even though its resistance to temperature is limited and pfa has dielectric, thermal and chemical properties identical to PTFE.
TECAFLON® tubes are supplied without markings.
Admissible working temperatures of TECAFLON® tubes are comprised between -170°C and +200°C.
TECAFLON® tubes are produced in limited lengths (see table of characteristics) and then packaged in standard lengths of 25 metres.
On request, they can be supplied otherwise.


Table of working pressure ratios of TECAFLON® tubes according to working temperature
T(°C) +23° 50° 100° 150° 200°
Pressure (%) 100% 50% 35% 30% 10%

The values of working pressure ratios according to working temperatures indicated above represent only the average of the results obtained from burst pressures divided by a safety factor, given that these are variable according to tube diameter and wall thickness.


Calibrated polytetrafluoroethylene tube
Part N° Outer
diameter
(mm)
Inner
diameter
(mm)
Wall thickness
(mm)
Limit of
non-burst pressure
20°c
(bars)
Working pressure 20°c
(bars)
Weight
(gr/mm)
Bend radius
(mm)
Maximum out-of-round Maximum production length Available
00113800000 3 1,5 0,75 60 20 11,5 12 0,10 95 On request
00112100000 4 2 1 60 20 20 16 0,15 86 White/25m
00114100000 5 3 1 48 16 27 25 0,15 60 On request
00112000000 6 3 1,5 60 20 46 24 0,17 49 On request
00112200000 6 4 1 40 13 34 36 0,15 500 White/25m
00112800000 8 4 2 60 20 81 32 0,20 300 On request
00112300000 8 6 1 30 10 47 64 0,15 200 White/25m
00114000000 9 5 1,5 30 10 107 105 0,17 50 On request
00112400000 10 8 1 24 8 61 100 0,15 100 White/25m
00112500000 12 10 1 20 7 74 145 0,15 84 White/25m
00112600000 14 12 1,5 17 6 88 200 0,17 75 On request
00112700000 16 14 1 15 5 102 260 0,15 48 On request
00114100000 18 16 1 13 4 115 330 0,15 44 On request
00114200000 20 18 1 12 4 129 400 0,15 38 On request
00114300000 22 19 1,5 16 5 210 330 0,17 14 On request
00114400000 24 21 1,5 15 5 230 390 0,17 23 On request
00114500000 26 20 3 28 9 470 225 0,20 11 On request
00114600000 28 25 1,5 13 4 271 530 0,17 18 On request

PTFE : polytetrafluoroethylene / FEP : fluoroethylenepropylene / PFA : perfluoroalkoxy

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