Applications

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Air & Gas Compressors

GUARNIFLON – EXPERIENCE AND TECHNICAL KNOW-HOW IN PROCESSING FLUOROPOLYMER MATERIALS


Since 1982 Guarniflon is focused on the processing of PTFE resins into semi-finished and engineered parts, including high-performance PTFE compounds used in a large variety of industrial applications.
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Guarniflon R & D Dept. together with its technical team is in the position to face the increasing demand for high-quality products to be used in all applications where the working conditions are considered “extreme” and where PTFE grades are the unique choice to fulfil special technical requirements.






Compressor applications have been managed, from the very beginning, taking advantage of Guarniflon strong material science and engineering know-how, in order to offer the most suitable PTFE grades according to the specific operating conditions. The role of Guarniflon R&D dept. has been particularly important to develop this special PTFE product family.

For a range of applications, the filled PTFE family provides a superior self-lubricated material with excellent strength, high hardness and improved wear resistance by combining PTFE with optimized content of fillers. Guarniflon has developed in the years very special formulations by selecting the most performing filler materials, to enhance sliding and self-lubricating properties while granting longer lifetimes, especially in dry gases applications.

GCS grades are available in molded tubes length 150 mm. and machined parts according to customers’ drawings.



MOST USED MATERIAL GRADES


GCS801
A propriety PTFE based sealing material, recommended for oil-free natural gas applications, H2S containing gases and carbon dioxide. It boasts better lubricity properties and can be used in lubricated conditions.
GCS803
Standard PTFE grade suitable for low-pressure air and gas compressors. This material is recommended for lube and non-lube conditions and one of the most used grades. It is resistant to most chemicals.
GCS805
Thanks to its special fillers, it boasts better thermal conductivity than other PTFE filled grades. Recommended for non-lubricated high temperature and high-pressure wet air compression applications systems such as PET compressors, with working temperatures up to 200 ° C.
GCS807
One of the most used PTFE grades applied in oxygen compressors and dry gas compressors. It can be used in dry or lubricated conditions according to the kind of gas environment.
GCS809
PTFE based compound with optimized content of glass fiber filler. It can be used in lubricated as well as in dry-running service according to the kind of gas environment. Developed for the applications where the colour of the product should be white.
GCS817
PTFE based material with better thermal conductivity than carbon and glass filled PTFE compounds. well performing in heavy duty PET compressors at non-lubricated conditions.
GCS847
Proprietary polymer alloy for use on non-lubricated gas compressors, extremely high performance in non-lubricated application than traditional PTFE compound. Well performing with bone-dry gases with a very low dewpoint.
GCS849
Advanced PTFE material with specially optimized content of polymeric fillers which is proven for inert gases at bone-dry gas conditions. Suitable for compressor applications with dry nitrogen, dry argon or dry helium environments working at low – medium pressures. It has excellent wear resistance.

Tekclean

TEKCLEAN is a new patented Antibacterial product developed under the request for utilization in human spaceflight environment by the “Cleanliness & Bio Resources” department of Thales Alenia Space.
It has been tested according ISO 22196:2007 “Plastics – Measurements of antibacterial activity on plastics surfaces”.

Standard PTFE surfaces support the bacterial growth while TEKCLEAN surface kills all the bacteria and prevent their growth.

TEKCLEAN is available in films, sheets, tubes, rods and machined parts especially for pharma, medical and food industries.
Sample
BACTERIA
Klebsiella pneumoniae ATCC 4352
cell/cm² @ T0 cell/cm² @ 24h R*
Standard PTFE Reference 2,06 x 10 4 2,92 x 10 5
TEKCLEAN antibacterial PTFE 2,06 x 10 4 0,0 6,15
Sample
BACTERIA
Staphylococcus aureus ATCC 6538
cell/cm² @ T0 cell/cm² @ 24h R*
Standard PTFE Reference 1,96 x 104 1,96 x 105
TEKCLEAN antibacterial PTFE 2,06 x 104 0,0 5,96
* Antibacterial activity

D-Tekblue

D-TEKBLUE is a FDA approved blue PTFE detectable using optical scanner, metal detection equipment or X-ray equipment, whatever the type of food has been processed. This ensures that each fragment can be identified rapidly avoiding critical food contamination.
D-TEKBLUE KEY PROPERTIES:
  • Blue in color
  • FDA and EU 10/2011 approved
  • Detectable by X-ray or metal detection equipment with appropriate settings.
  • Easily machined
Whether you are looking at food processing, packaging, or conveying D-TEKBLUE is available in films, sheets, tubes, rods and machined parts.

* Use in gasket for X-ray systems in USA might infringe existing patent.

PTFE G673

PTFE G673 is a new patented stainless steel filled PTFE developed to overcome surface finish problems after CNC and mechanical machining of standard SS filled PTFE.
Composed of a unique blend of PTFE and special SS 316L powder PTFE G673 defines new standard for PTFE compounds in terms of mechanical strength, toughness, elasticity, durability and surface finish.

PTFE G673 KEY PROPERTIES

  • Reduced cost of machining operation
  • Higer compression strength and reduced cold flow providing a leak-free material
  • Smooth surface finish after CNC machining
  • Better wear resistance in comparison to standard SS filled PTFE
  • Low porosity
  • Ideal for extreme temperature and pressure application
  • Higher elasticity in comparison to standard SS fillled PTFE
  • FDA and EU 10/2011 approved

ROUGHNESS PROFILE AFTER CNC MACHINING

Tekpore

Polytetrafluorethylene, best known as PTFE, is a high performance plastic material used in a wide range of industrial applications.
  • Chemical & petrochemical
  • Electronics
  • Automotive
  • Food
  • Pharmaceutical
  • Ball valves
Guarniflon®, since 1982, is processing massive quantities of PTFE semifinished and engineered parts for the following main applications:
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The total yearly production output of 5.000 tons. is including virgin PTFE products as well as high performance compounded PTFE grades developed by Guarniflon® Engineering, the R&D department fully supporting the production site.

GUARNIFLON® PTFE MAIN PROPERTIES
  • High melting point (342°C)
  • Outstanding thermal stability
  • Useful mechanical properties at extremely low and high temperatures
  • Insolubility
  • Exceptional chemical inertness
  • Extremely low coefficient of friction
  • Low dielectric constant/dissipation factors
  • Zero water ab/adsorbtion
  • Excellent weatherability
  • Flame resistance
  • Purity
DRIVING FORCES
  • High sealability
  • Safety
  • Reliability
  • Low maintenance
  • Long life
  • Low pollution
  • Low emissions
  • Energy saving
  • Miniaturization
TEKPORE® PROPERTIES
THE MAIN PROPERTIES OF GUARNIFLON® POROUS PTFE

Porous PTFE grades are produced from suspension PTFE powders and specifically they are a mixture of different particle size distributions and hardness degrees to achieve the desired level of porosity.
Taking advantage of the up-to-date technologies and know-how used to process sintered PTFE products, Guarniflon® has developed different grades of porous PTFE with the following main properties:
  • Air flow rates: up to 20 l/hr/cm2 at 20 mbar
  • Water intrusione pressure (WIP): up to 1,2 bar
  • Average pore diameter: up to 50 μm
Filter and safety technology
  • Filter membranes
  • Protective sheaths
  • Dust filters
  • Protective elements for sensors
  • Silencers
  • Pressure balance system
Automotive engineering
  • Abs
  • Airbag
  • Asr
  • Automatic controls
  • Batteries
  • Injection control
  • Esp
  • Hooters
  • Headlights
  • Tyre pressure monitoring systems
Optical metrology - Chromatography
  • Reflectors
  • Spectrometers
  • Ulbricht spheres
  • Photometers
Chemicals, semiconductor and clean room technology
  • Filters for gases and liquids
  • Catalyst supports-diaphragms
  • Gas injection and/or gas distribution
  • Pressure compensation devices

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