Thermoplastics come in a veritable alphabet soup of options: PVC, CPVC, PP-RCT, ABS, PP, PE, PRFV and PVDF, for instance. These systems are used to convey potable water, waste water, liquid chemicals, heating and cooling fluids (such as glycol and brine), ultra-pure liquids. and slurries, – to name a few.
Regardless of its acronym, thermoplastics offer many benefits to specifiers, installers, OEMs property managers, and business owners.
Cost Effective: Quick joining methods / Lightweight / Easy to transport and install / Less maintenance and longer life
Robust & Reliable: Resistance to corrosion, chemicals and weather / Optimal flow capability / Low thermal conductivity / Nontoxic and odorless
HDPE pipe is a type of flexible plastic pipe used for fluid and gas transfer and is often used to
replace ageing concrete or steel mains pipelines. Made from the thermoplastic HDPE (high-density polyethylene), its high level of impermeability and strong molecular bond make it suitable for high pressure pipelines.
PE piping has been used for water and other fluids in Europe and America since the 1950s due to its
durability, leak free joints, resistance to corrosion, and long-term cost-effectiveness.
Nominal diameters: 16 to 2000 mm (or ½” to 78”) / SDR 41 (S20) to SDR 7,4 (S3,2)
Temperature: up to 140°F (PE100)
Pressure: up to 25 bar (PN25)
Applicable standards: ISO4427, ASTM F714, ASTM D3261, AWWA C901, AWWA C906, ASTM
D3035, ASTM D3261, ASTM D3350, ISO 14236, ISO 12176, etc…
The value of PVC and CPVC is in their versatility, relative cost, ease of installation and corrosion
resistance. Keeping those advantages in mind, common uses for each differ depending on the
demands of the application.
The main difference between CPVC and PVC is the range of temperatures each is capable of
withstanding. CPVC can handle temperatures up to 200° Fahrenheit, while PVC peaks at 140°
Nominal diameters: ¼” to 24” / Schedule 40 & 80
Temperature: up to 140 °F (PVC) – up to 200 °F (CPVC)
Pressure: up to 2.000 psi (CPVC SCH80)
Applicable standards: ASTM F439 / F441 / F441M – ASTM D2846 / D2846M – ASTM E84/UL723 –
ASTM D1784, etc…
Polyvinylidene fluoride or polyvinylidene difluoride (PVDF) is a highly non-reactive thermoplastic
fluoropolymer produced by the polymerization of vinylidene difluoride.
PVDF is a specialty plastic used in applications requiring the highest purity, as well as resistance to
solvents, acids and hydrocarbons. Compared to other fluoropolymers, like polytetrafluoroethylene
(Teflon), PVDF has a low density (1.78 g/cm3).
Nominal diameters: d20 – d315 mm (½» – 12″)
Temperature: -40 °C to 150 °C
Pressure: d20 – d110 mm: PN16 (232 PSI) / d160 – d315 mm: PN10 (150 PSI)
Applicable standards: ASTM D4101 / ISO 10931, etc…
PApplications: the Fiberglass Reinforced Plastic Pipes and Reinforced Plastic Mortar Pipe are mainly used in such fields as water conservancy, sewage, petroleum, chemical industry, electricity, metallurgy, pharmacy, etc.
FRPs have a low weight but are incredibly strong, and have good fatigue, impact and compression properties. This makes them of great interest to the motor industry who aim to replace metal with lighter weight materials to not only make the cars stronger but more fuel efficient.
Nominal diameters: DN25 – 4000mm / Pipe engths: 1m, 3m, 6m, 12m Temperature: -20 to 200 °F Pressure ratings: 0.1Mpa, 0.6Mpa, 1.0Mpa, 1.6Mpa, 2.5Mpa Applicable standards: ASTM D2996, AWWA C950, AWWA M45, ASME B31.1, ASME B31.3, BS6464, etc…