PVDF (Polyvinylidene Fluoride)
What is the minimum and maximum use temperature for PVDF Industrial
Pressure Piping? 

Unde...
What are the most common chemicals handled by
PVDF that attack less expensive materials?
It is common to use PVDF piping t...
Can PVDF piping be steam
cleaned?
Studies have been
published that after over 50
steam cycles at 127C, PVDF
piping had no ...
What joining methods are readily available
for PVDF piping systems? 

Generally PVDF pipe is joined either
mechanically or...
What food and water regulatory listings
are available for PVDF?
Certain grades of PVDF are listed by NSF
for NSF‐51 (hot f...
What flame and smoke testing listings are available for
PVDF?
Certain grades of PVDF have FM 4910 listing for
Semiconducto...
Can PVDF pipe be exposed to nuclear radiation?


PVDF has been used up to 1000 mega‐rads of
radiation exposure by governme...
What is the abrasion resistance of PVDF?
Reported Tabor Abrasion Resistance shows PVDF to
compare favorably with Nylon and...
THANK 
YOU
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Frequently asked question about pvdf

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Frequently asked question about pvdf

  1. 1. PVDF (Polyvinylidene Fluoride) What is the minimum and maximum use temperature for PVDF Industrial Pressure Piping? 
 Under supported conditions and using a chemical compatibility chart, PVDF can be used continuously up to 150C and most manufacturers rate it to 140C in chemicals that have little attack on PVDF. As it relates to cold weather, PVDF is not brittle until ‐40C, but most recommendations are to use ‐30C as the lower limit in case there is some type of impact that occurs on the system. Flexible PVDF copolymers generally do better at very low temperatures compared to PVDF homopolymers but they can all handle relatively cold weather.
  2. 2. What are the most common chemicals handled by PVDF that attack less expensive materials? It is common to use PVDF piping to handle hot Chlorine, Methyl Chloroform, Hydrochloric Acid, Salt Water, Chlorobenzene, Sodium Hypochlorite (pH < 12), Sugars, Sulfuric Acid (97 % and less), Chlorinated Salts, Phosphoric Acid, Hydrofluoric Acid, Metallic Chlorides, Acid Mixtures, Bromine, Hydrobromic Acid, Bromo‐ benzene, Brominated Salts, Iodine, Salicylic Acid, Methane Sulfonic Acid, Acetic Acid (<50%), Methyl Alcohol, Chromic Acid, Nitric Acid, Deionized Water, Ozone, Biodiesel, Bioethanol, Hydrocarbon and alcohol based fuels and mixtures.
  3. 3. Can PVDF piping be steam cleaned? Studies have been published that after over 50 steam cycles at 127C, PVDF piping had no change in properties versus a control sample. It is common to subject PVDF piping to low pressure steam in bio– pharma applications.
  4. 4. What joining methods are readily available for PVDF piping systems? 
 Generally PVDF pipe is joined either mechanically or by fusion welding. PVDF systems are offered by several pipe manufacturers in socket fusion, butt fusion, beadless butt fusion (BCF Bead Crevice Fusion), infrared fusion, electrofusion, flanged mechanical, threaded mechanical, fiberglass reinforced flanged, and threaded.
  5. 5. What food and water regulatory listings are available for PVDF? Certain grades of PVDF are listed by NSF for NSF‐51 (hot food contact) and NSF‐61 (hot potable water). Certain grades comply with USP Class 6 testing. Certain grades comply with Sanitary 3A testing. Certain grades comply with FDA Title 21 CFR 177.2510 and CFR 177.2600 for repeated use with food contact. There may be other listings and it is good to just contact the manufacturers of PVDF for advice.
  6. 6. What flame and smoke testing listings are available for PVDF? Certain grades of PVDF have FM 4910 listing for Semiconductor Facilities. Certain grades of PVDF are listed to UL 2024 for plenum rated raceway conduits. Certain grades of PVDF are listed to ASTM E84 25/50 rating tested in sheet form (one listed product even has a 0/0 rating), and have achieved a 0/20, 5/40 rating tested as pipe geometry with the tunnel full in width and length as designed in the test with no addition of water or other potentially extinguishing media. Certain grades of PVDF comply with 25/50 rating for ULC S102.2. Certain grades of PVDF are used by companies that make listed wire and cable products for plenum areas in buildings. PVDF Foams with density as low as 0.03 specific gravity have passed ASTM E84 25/50 rating and have achieved FM 4910 listing. There may be other listings, and it is good to just contact the manufacturer for written confirmation.
  7. 7. Can PVDF pipe be exposed to nuclear radiation? 
 PVDF has been used up to 1000 mega‐rads of radiation exposure by government laborato‐ ries. There is much documentation about the use of PVDF in nuclear reclamation facilities. What typical industries use PVDF piping to handle chemical processing? The following industries use PVDF piping systems: Pulp & Paper, Chlor‐Alkali, Metal Preparation, Petrochemical, Food & Beverage, Pharmaceutical /Biotech, Wastewater, Pesticides, Fertilizer, Semiconductor /Electronics, Institutional (Schools, Colleges and Universities), Brominated Chemicals, Marine, and General Chemical Handling.
  8. 8. What is the abrasion resistance of PVDF? Reported Tabor Abrasion Resistance shows PVDF to compare favorably with Nylon and UHMW‐PE. This is over 2 times more resistant than many commodity polymers and 100 times more resistant than PTFE. How resistant to sunlight is PVDF? 
 PVDF is very resistant to sunlight. It is commonly used in Solar Panels as a 40 year life protective film, long life paint finishes for tall buildings and airports, and outdoor wiring and piping. What final products are readily available in PVDF to compliment piping systems? 
Flexible tubing, fittings, films, coated ducting, pumps, nozzles, flowmeters, valves, tanks, membranes, fabrics, dump tower packing, filter housings and nuts & bolts are readily available in stock for making a complete chemical handling system from PVDF.
  9. 9. THANK  YOU

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