Industrial Hoses - stainless steel braided hyperline PTFE hose

Write By: sukoptfe Published In: PTFE Tubing Created Date: 2017-04-13 Hits: 3834

The PTFE lined tube is smooth bore on the inside but convoluted on the outside, to combine the ease of assembly and high flow rates of a smooth bore hose with the flexibility and kink resistance of a convoluted hose in one product.

PTFE lined tube

Material:PTFE
Reinforcement:Single or double PTFE stainless steel braid
Working temp.:From -70°C up to +260°C (working pressure depends on temperature)

Characteristics:The internal layer made of seamless extruded, premium grade PTFE that ensures minimum porosity, maximum flexibility and high resistance to vibration. The braid made of heat treated PTFE stainless steel wire (tensile strength: 1700 MPa). Hyperline hose is a version of Smoothbore hose, however its wall is medium thick and inside diameter suitable for standard hydraulic fittings. Supplied with a single braid as a standard.

For temperatures above +130°C reduce the maximum working pressure given in the
tables by 0.75% for each 1°C of temperature rise above +130°C.
Example: at +170°C temperature, maximum working pressure for hyperline PTFE hose is:
          320 bar - (170°C - 130°C) x 0.75 = 320 bar - 30% = 224 bar.
Safety factor (working pressure/ bursting pressure) is 1:3.


PROPERTIES
Temperature Rating : 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).

The maximum working temperature for the PTFE braided hose is +180°C (+365°F)

Pressure Resistance : The maximum working pressures are as listed, up to 130°C (266°F). The design of conventional auto convoluted PTFE hose liner permits internal “pressing out” of the convolutions inside the braid over time and under temperature and pressure, leading to premature failures. The narrow and highly compressed web sections of Hyperline FX are much more resistant to pressing out, hence a much longer service life under pressure can be achieved.

Tube Only grades can only be used at pressures up to 4 Bar (60 psi) up to 130°C (266°F) and are not fully vacuum resistant.

Full Vacuum Resistance : Stainless Steel braided Hyperline hose is vacuum resistant up to 130°C (266°F).

Reduced Diffusion Rates : The way the Hyperline tube liner is made, by web compression without fracture, surprisingly generates a much improved resistance to gas permeation, compared to any other type of smooth bore or convoluted PTFE hose. Much lower diffusion rates can therefore be achieved.

Excellent Flow Rates : Due to the non turbulent flow through a smooth bore hose, Hyperline flow rates for a given pressure drop and actual bore size are 2 to 3 times higher than for a convoluted PTFE hose. (This applies to the hose itself. If end fittings are applied, however, which introduce a smaller bore at the ends, this multiple is reduced).

Applications:Due to the unique properties of PTFE (wide temperature range, excellent chemical resistance,non-stick surface), widely used to transfer chemicals, foodstuffs, fuels, oils, paints, solvents,adhesives, detergents, inks, steam, etc.