Industrial Water Management
Easy to Process. Outstanding Properties.
Kynar® PVDF polymers are easily processed using standard processing equipment and the resultant pipe, tubing, fitting, connectors and tanks are easily maintained and adapted during their long service life. Their inherent resistance to bacterial growth and their resistance to ozone, chlorine dioxide, sodium hypochlorite make them well suited to replce stainless steel and exotic metal alloys.
Components made from Kynar® PVDF do not rust or rouge. They are light weight, have excellent flame and smoke properties and are extremely durable. Certain grades are approved for water contact (NSF61, ACS and KTW approvals) - see your Arkema representative for the exact approvals for each chosen grade.
"ULTRA HIGH PURITY SOLUTIONS FOR THE SEMI CONDUCTOR AND BIOPHARMA INDUSTRIES"
Kynar® Fluoropolymer Solutions to Replace Metals & Exotic Alloys
• While metals rust and rouge with age, Kynar® PVDF components do not corrode
and do not need to be passivated
• Kynar® PVDF components are strong, tough and provide long-lasting, corrosion free service
• Kynar® PVDF systems have installed costs comparable to stainless steel—but much lower lifetime maintenance costs
• Kynar® PVDF components are lighter weight and more abrasion resistant than
stainless steel and are easily assembled with heat fitting/welding
Using Kynar® PVDF resin as a Replacement for PVC, HDPE, PP, CPVC
• Kynar® PVDF systems can operate at a much higher temperature – up to 302°F
(150°C) in some chemical environments
• Kynar® PVDF components are more resistant to radiation and to a broader range of chemicals
• Select Kynar® PVDF polymers contain no additives and are suitable for use in high purity applications
• Kynar® PVDF components exhibit excellent flame and smoke characteristics and are UL listed as such (contact us for details)
• Kynar® PVDF systems exhibit greater mechanical strength
• A wide range of Kynar® PVDF components are available due to ease of processing
• Kynar® PVDF components are resistant to chemicals with a pH up to 13 (copolymer grades)
Common Sterilization Techniques
Steam, irradiation, ozone, ultraviolet (UV), alcohols, and chemical sterilization.
For more detailed information about the chemical resistance of Kynar® PVDF components, including corresponding operating temperatures, please download our Kynar® PVDF Chemical Resistance Chart.
Common Applications
-
Filtration - Hollow Fiber Membranes, filter housings, supported and unsupported
flat sheet membranes, multi and monofilament wovens, non-wovens, fabrics, and mesh screens -
Disinfection - Chemical injection systems for chlorine gas, chlorine dioxide, sodium hypochlorite, ozone
-
UV Systems
-
Water transfer components including pipes, tubes, valves, pumps, nozzles, spigots, lined steel pipe, and lined steel vessels for transferring potable, deionized, and ultra pure water (semi conductor and biopharma industries)
Kynar® PVDF Components Supplied by Our Customers
- Pumps (centrifugal, sump, ball, diaphragm, chamber, magnetic drive and more)
-
Membranes
-
Nozzles and ozone injectors
-
Foams
-
Tower packings
-
Mist eliminators
-
Filter housings
-
Stock shapes (rods, sheets, films)
-
Flow meters
-
Monofilament fibers
-
Multifilament fibers
-
Non-woven fibers
A Wide Range of Applications
|
Application |
Instead of: | Up to: | For: |
|---|---|---|---|
|
Exposure to chlorinated & brominated chemicals |
titanium alloy 20 PTFE-lined steel PFA-lined steel |
275F (135C) |
lower cost |
|
Exposure to hot acids (eg: HF, HCl, H2SO4, HNO3, chromic, HBr |
titanium alloy 20 PTFE-lined steel |
275F (135C) |
lower cost |
|
Alcohol + acids /chlorides /hydrocarbons |
polypropylene HDPE |
194F (90C) |
broad chemical resistance to varied concentrations |
|
High pressure + high temperature |
PVC |
285F (141C) and 340 psi at RT |
high temperature rigidity |
Vessels
|
Type |
Description | Temperature2 | Pressure1 |
Available Sizes |
Polymer Layer Thickness |
|---|---|---|---|---|---|
|
Sheet-Lined Steel |
Fabric-backed Kynar® or Kynar Flex® sheet is applied to all fluid contact surfaces and welded in place to form a continuous corrosion and purity barrier |
up to 107°C (225°F) |
up to the limit of the steel vessel |
any size tank can be lined |
1.5 mm - 5 mm (60 mil - 200 mil) |
|
Spray-Coated Steel |
Kynar® or Kynar Flex® powder is applied to the metal surface in layers and baked to form a continuous layer |
up to 93°C (200°F) |
full vacuum up to the limit of the steel vessel |
up to 2 m x 6 m (6.5' x 20') |
0.64 mm - 2.29 mm (25 mil - 90 mil) |
|
Dual-Laminate |
Kynar® or Kynar Flex® sheet is formed into the shape of the container and wrapped with fiberglass reinforced plastic (FRP) |
up to 125°C (257°F) |
up to 1.03 MPa (150 psi) |
up to 6 m x 30.5 m (20' X 100') |
1.5 mm - 5 mm (60 mil - 200 mil) |
|
Solid |
Solid Kynar® or Kynar Flex® vessels are either injeciton-molded (generally small sizes), welded or rotomolded |
up to 140°C (284°F) |
typically atmospheric |
any size can be fabricated |
3 mm - 101 mm (1/4" - 4") |
Solid Kynar® valves and Kynar®-lined steel valves are available in many forms, such as ball, diaphragm, butterfly, ball check, relief, check and plug valves.
Pipe, Valves & Fittings1
|
Type |
Description | Temperature2 | Pressure1 | Available Diameters |
Joining Methods |
|
Solid |
Uncovered extruded, machined or injection-molded Kynar® or Kynar Flex® components | up to 140°C (284°F) | full vacuum up to 4 MPa (580 psi) | 20 - 400 mm (1/2" - 16") |
butt fusion, socket fusion, mechanical, threaded, flanged, IR, smooth inner bore, bead & crevice free, electrofusion |
|
FRP-wrapped |
Extruded or machined Kynar® or Kynar Flex® components, covered with a thick layer of fiberglass reinforced plastic | up to 140°C (284°F) | full vacuum up to 1.03 MPa (150 psi) | almost any size can be fabricated |
butt fusion, flanged |
|
Lined Steel |
Extruded Kynar Flex® lining surrounded by carbon steel or stainless steel | up to 135°C (275F°) | full vacuum up to 3.28 MPa (475 psi) | 25 - 250mm (1" - 10") |
welded, flanged |
Solid Kynar® valves and Kynar®-lined steel valves are available in many forms, such as ball, diaphragm, butterfly, ball check, relief, check and plug valves.
Tubes & Fittings1
|
Type |
Temperature2 |
Pressure1 |
Available Diameters |
|---|---|---|---|
|
Flexible tubing |
Up to 225°F (107°C) | Rating up to 300 psi (2.07 MPa) |
1.6 - 152.4 mm (1/16" - 2") |
|
Rigid tubing |
Up to 250°F (121°C) | Vacuum rating up to 230 psi (1.59 MPa) |
3.2 - 324 mm (1/8" -12-3/4") |
Filter Fibers & Textiles
| Type | Temperatures | Tenacity (cn/tex) | Available Denier | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Multi-filament Fiber | Up to 302° F (150°C) | >26 | 10-40μ * | ||||||||||||||||||||
| Textiles | Up to 302° F (150°C) | >26 | 10-40μ * | ||||||||||||||||||||
*Fiber down to 1μ have been produced using Kynar® 705 PVDF resin.
1- Note that the Kynar® component temperature, pressure and sizing data above are compiled from industry data and are for illustrative purposes only. The actual temperature and pressure ratings of your system, as well as its resistance to chemical attack, are dependent on many environmental factors. Higher operating temperatures will reduce the Kynar® system’s maximum operating pressure; higher operating pressures will reduce the system’s maximum operating temperature. Higher operating pressures or tempera- tures may also require increased component wall thickness. Consult your Kynar® component supplier about your system’s operating parameters before purchasing a Kynar® system.
2- Kynar® components can withstand continuous temperatures as low as –30°C (-22°F) under certain con- ditions. Please contact your Kynar® component supplier with specific information about your application to determine the lowest recommended operating temperature of your Kynar® system.