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PVDF Piping Systems

PVDF has outstanding barrier properties which allows a better protection of the environment. The construction of chemical process equipment makes use of a multitude of materials to cope with specific corrosion problems. PVDF has the advantage of absolute suppression of corrosion, even under varying process conditions, when compared to other materials.

Technical information

When compared with non-fluorinated thermoplastics, PVDF gives maximum reliance in chemical resistance, such as resistance to strong oxidising agents and concentrated mineral acids.

Evolution of the flexural module as a function of temperature in a dynamic 3 point bending test:

Operating Temperature OperatingPressureforthefollowingPressureRatings
150 psi / 10 bar 232 psi / 16 bar
°F °C psi bar psi bar
-40 -40 150 10 232 16
68 20 150 10 232 16
104 40 117 8.1 190 13.1
140 60 96 6.6 152 10.5
176 80 75 5.2 117 8.1
212 100 58 4 90 6.2
248 120 42 2.9 67 4.6
284 140 27 1.9 13 3

Support Distances for PVDF pipes

0C 20 40 60 80 100 120 140
Spacing (m) 1.524 1.524 1.27 1.016 1.016 1.016 1.016

Above table is valid for Density of fluid at 1000 kg/m3. It will increase based on correction factor below for higher density:

Density of fluid kg/m3 1250 1500 2000 2500 2700
Correction Factor 0.94 0.83 0.77 0.7 0.57
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