PTFE TECHNOLOGY AND PTFE PRODUCTION PROGRAMME

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1 PTE TEHNOLOGY AND PTE PRODUTION PROGRAMME

2 PTE VALVES Types of fittings Ball valves Butterfly valves heck valves Sight glasses Pipeline components Types of coatings PTE PA EP PTE ANTISTATI PA - ANTISTATI Materials of steels arbon steel: Stainless steel ,

3 PYRAMID DIAGRAM O MOST USED ENGINEERING PLASTIS ADVANED ENGINEERING PLASTIS High temperature Superior chemical resistance Good wear resistance ENGINEERING PLASTIS Good chemical resistance General purpose Bearing & wear STANDARD PLASTIS Non-critical applications Standard plastic Engineering plastic High temperature plastic PI PAI PES, PPSU PEI, PSU PPP, P-HT P PA 6-3-T PPE mod. PMMA PS, ABS, SAN PEkEkk PEEk, PEk LP, PPS PTE, PA ETE, PTE PVD PA 46 PET, PBT PA 66 PA 6, PA 11, PA 12 POM PMP PP PE 300º 150º 100º Long term service temperature Amorphous Semi-crystalline

4 PTE ( Polytetrafluoroethylene) PTE is made of a carbon backbone chain. Each carbon has two fluorine atoms attached to it, like shown on picture below. The base characteristics of PTE are the ones that offering a unique combination of: Low coefficient of friction Excellent chemical inertness Extremely good chemical resistance to almost all chemicals Non-adhesive surface Wide temperature range withstanding (-200 to ) Melting point 327 Excellent dielectric properties.

5 PTE 3D Molecule PTE is a linear and fully fluorinated high molecular weight polymer. The extremely strong carbon fluorine bonds in PTE impart an outstanding combination of properties to PTE. luorine PTE is hydrophobic, liquids will not wet PTE as Polymer arbon it has a high electronegativity. Description Explanation Result The fluorine atoms form a protective sheath arround the chain of carbon atoms Shielding the carbon chain from attack by chemicals hemical and thermal stability. Reducing the surface energy Low coefficient of friction Reducing the surface energy Non-stick properties

6 PTE ILLERS Where the most critical operating conditions are present, even the excellent performances of virgin PTE can not always fulfil the user`s expectations. A range of fillers, typically glass fibre, carbon, graphite, bronze can be blended with PTE resins, usually in the proportion of 2-40%, to improve certain characteristics. The incorporation of fillers can: Increase compressive strength Improve thermal conductivity Improve abrasion resistance Reduce thermal expansion Reduce coefficient of friction Impart electrical conductivity It should be noted that the use of fillers may downgrade other properties of PTE such as chemical and electrical resistance. Low riction

7 RAM EXTRUSION 1 Products 2 Powder feeding 3 Pressing cylinder for moving the ram 4 Retracting cylinder for retracting the mandrel (in tube production) 5 Ram for compressing the powder 6 Extrusion pipe 7 Heating sleeves for heating the extru sion pipe 8 Drive for the stirring device 9 Movable mandrel

8 EP luorinated Ethylene propylene n m 3 Melt-processable fluoropolymer -> injection molding Melting point Service temperature from -200 to +205 Mechanically, EP is slightly more flexible than PTE Appearance: Highly transparent EP is softer than PTE EP has inferior mechanical and thermal properties than PTE Resistant to sunlight

9 PA perfluoroalkoxy alkane n O O Rf m Melt-processable fluoropolymer -> injection molding Melting point 305 Service temperature from -200 to +260 Similar chemical resistance to PTE Much lower porosity than PTE Appearance: Translucent (virgin), deep black (conductive). omparison with PTE: Equivalent thermal and chemical resistance, superior properties with respect to processability, translucency, permeation resistance and mechanical strength. Material with well-defined melting point the granulate is melted in a melt pot and then forced into the hot tool by a hy draulic press. Permeation: PA gives better barrier properties than PTE

10 SAMPLE O PRODUTS LINED WITH EP/PA MATERIAL INJETION MOLDING

11 Substance groups at 25 ETE PA, EP LPE PTE LPP HDPE LDPE P PETG PP PV Acids, dilute or weak E E E E E E E E G E E Acids,strong/conc. E E G E G G G G G G Alcohols,aliphatic E E E E E E E G G E G Aldehydes E E G E G G G G G G G Bases/Alkali E E E E E E G N E E Esters G E G E G G G G G N Hydrocarbons,aliphatic E E E E G G G G G Hydrocarbons,aromatic G E E E N N N N N N N Hydrocarbons,halogenated G E G E N N N N N N Ketones,aromatic G E G E G N N N N N Oxidizing Agents,strong E E E G E 30 days of constant exposure causes no damage. Some effect after 7 days of constant exposure (cracks,loss of strength,discoloration). G Little or no damage after 30 days of constant exposure. N Not recommended, immediate damage may occur.

12 THE PRODUTION PROGRAMME

13 PTE BALL VALVES DN15 DN250 NPS1/2 NPS10 PN6 PN40 LASS

14 PTE BUTTERLY VALVES DN50 DN600 NPS2 24 PN16 LASS

15 PTE HEK VALVES DN15 DN400 NPS1/2 NPS16 PN6 PN40 LASS 150 LASS

16 PTE SIGHT GLASSES DN15 DN100 NPS1/2 NPS4 PN6 PN40 LASS

17 PTE PIPELINE OMPONENTS DN15 DN250 NPS1/2 NPS10 1 Pipes 2 Elbows PN6 PN40 LASS T-joints 4 ompensators

18 Headquarters Gawłuszowice Brzyście 35 POLAND tel.: