novaflon PTFE gaskets for industrial applications.

Transcription

1 novaflon PTFE gaskets for industrial applications. GASKETS TECHNICAL TEXTILES EXPANSION JOINTS INSULATION NEW MATERIALS

2 At a glance: the benefits of novaflon novaflon combines decisive advantages over conventionally manufactured PTFE: Excellent media resistance to most lyes and acids throughout the ph range (ph levels -14) High residual stress Resistant to cold flow High mechanical resistance Wide temperature range from -21 C to 2 C Unlimited shelf life Excellent leakage properties: Meets German fugitive emission regulation TA Luft [leakage rate < 1-4 mbar l/(s m)] Compliance with FDA Perfluorocarbon regulation Typical application areas for novaflon All-purpose use in the chemical, petrochemical, pharmaceutical, paper and food industries Oils and greases, acids and alkalis, solvents, refrigerants, water, steam Compliance with the German fugitive emission regulation TA Luft in these areas: - Petrochemicals - Chemical industry - Pharmaceutical industry - Food industry

3 The better choice: novaflon gaskets made from PTFE novaflon 1 novaflon novaflon 3 novaflon 5 Modified PTFE with hollow glass microspheres Thanks to its extremely high compressibility, novaflon 1 is eminent ly suitable for use in stress-sensitive flanges, such as glass, ceramic and FRP flanges. Very good anti-stick properties are an outstanding feature of the all-purpose gasket made from modified PTFE. Downtime is mini mised as a result, while machine reliabil ity and availability are increased. Another advantage: novaflon 1 s impressive adaptability enables it to com pensate for minor damage or unevenness in the flange surface. Excellent media resistance mades novaflon 1 the ideal solution for use in the chemical industry. Modified PTFE with barium sulphate novaflon has the best chemical resistance to strong alkalis. High mechanical resistance, high pressure resistance (vacuum to 83 bar) and strongly optimised creep properties are convincing features of the all-purpose flat gasket made from modified PTFE. The high purity of the gasket material, which is physiologically harmless, makes novaflon the ideal solution for use in the food and pharmaceutical industry. Modified PTFE with silica novaflon 3 offers a very good balance between chemical re sistance and reduced creep properties. The flat gasket is not affected by concentrated acids either (except for hydrofluorides). The all-purpose gasket made from modified PTFE is therefore the product of choice for process industry applications. High mechanical resistance at both high pressure (vacuum to 83 bar) and high temperatures makes novaflon 3 the ideal solution for use in the chemical and petro chemical industry. 1 % multi-directional expanded PTFE novaflon 5 offers a universal chemical resistance (ph -14). Due to its unique production process novaflon 5 shows an extremely good resistance to creep and cold flow. The gasket material compensates low bolt forces as well as flange irregularities and moreover stands out by extremly high pressure resistance (vacuum up to bar). These properties predestine novaflon 5 for the application in the pharmaceutical industry, the food and beverage industry, especially suitable for glass lined flanges and FRP equipment or in reactors in the process industry.

4 1.E+ Technical information about novaflon Fuel A (ml/h) Leakage measurement ASTM F 37 A novaflon 1 novaflon novaflon 1 novaflon novaflon 3 novaflon 5 novaflon 3 novaflon 5 Leakage rate (mbar l/(s m)) Leakage rate (mbar l/(s m)) novaflon meets the German fugitive emission regulation TA Luft novaflon 1 Leakage rate λ mbar l/(s m) 1.E+ 1.E-1 1.E-2 1.E-3 1.E-4 1.E-5 1.E-6 1.E-7 1.E-8 1.E-9 1.E novaflon 3 Leakage rate λ 5,4 1-7 mbar l/(s m) 1.E-1 1.E-2 1.E-3 1.E-4 1.E-5 1.E-6 1.E-7 1.E-8 1.E-9 1.E Leakage rate (mbar l/(s m)) Leakage rate (mbar l/(s m)) 1.E+ 1.E-1 1.E-2 1.E-3 1.E-4 1.E-5 1.E-6 1.E-7 1.E-8 1.E-9 1.E-1 1.E+ 1.E-1 1.E-2 1.E-3 1.E-4 1.E-5 1.E-6 1.E-7 1.E-8 1.E-9 1.E-1 novaflon Leakage rate λ mbar l/(s m) novaflon 5 Leakage rate λ 1,2 1-6 mbar l/(s m) Recommendations for use according to the pressure and temperature novaflon 1 novaflon /3 novaflon 5 Water/steam Water/steam Water/steam Saturated steam curve Other media* Other media* Other media* Saturated steam curve Saturated steam curve The temperature and pressure re com mendations in the graphs apply to gaskets with a thickness of 2. mm and smooth flanges. Higher stresses are possible when thinner gaskets are used! *Example for the most common other media. Exact data for specific individual cases are available in the Frenzelit novadisc programme or contact our application engineering specialists. Warranty exclusion In view of the variety of different installation and operation conditions and application and process engineering options, the information given in this prospectus can only provide approximate guidance. There is as a result no basis for warranty claims.

5 Material data Internal pressure (bar) Blow-out test passed easily Proof of the blow-out re - sistance of the gasket sy stem is required in addition to leakage testing. According to the latest version of VDI 2, the gasket has to be able to withstand 1.5 times nominal pressure at very reduced surface pressure levels. The gasket is fitted in a DIN flange DN/PN at 3 N/mm 2. After storage of the flange system at 15 C for 24 hours, nitrogen is applied gradually at a pressure of up to a maximum of bar. Pressure would drop very rapidly if the gasket failed. The gasket is then tested at two considerably reduced surface pressure levels. If the test is passed at 1 N/mm 2, a further reduction is made to 7.5 N/mm 2. Even in the most critical case of an extremely low surface pressure level of 7.5 N/mm 2 and maximum pressure of bar, novaflon gaskets demonstrate their impressive blow-out re - sistan ce in line with the German fugitive emission regulation TA Luft without internal edging. We can provide a certificate confirming this on request. Blow-out test Time (min) General data novaflon novaflon novaflon novaflon Approvals FDA, TA Luft, FDA, TA Luft, FDA, TA Luft, FDA, TA Luft, DVGW, BAM, DVGW, BAM, GL (German. GL (German. GL (German. GL (German. Lloyd), Lloyd), Lloyd), Lloyd), EC 1935/4 EC 1935/4 EC 1935/4 EC 1935/4 Colour light blue white fawn white Tolerances in thickness acc. DIN Physical properties Test standard Unit Value* Value* Value* Value* Sample thickness 2. mm Identification DIN TF - G - O TF - M - O TF - M - O TF - O - O Density DIN [g/cm 3 ] Tensile strength DIN [N/mm 2 ] Residual stress σ de/16 DIN C, 3 N/mm 2, 16h [N/mm 2 ] Compressibility ASTM F 36 J [%] Recovery ASTM F 36 J [%] Cold compressibility ε KSW DIN [%] 3 3 Cold recovery ε KRW DIN [%] Hot creep ε WSW/15 DIN [%] Hot recovery ε WRW/15 DIN [%] Leakage DIN [mg/(m s)] Specific leakage rate (TA Luft) VDI 24/TA Luft [mbar l/(m s)] Helium, 1bar, 3 MPA Product data novaflon 1//3 Dimensions in mm: 1 x 1 (for thickness 1. mm) 15 x 15 (from thickness 1.5 mm) Thicknesses in mm: 1./1.5/2./3. novaflon 5 Dimensions in mm: 15 x 15 Thicknesses in mm:.5 to 9. Further dimensions and thicknesses are available on request. novaflon XXL * Modal value (typical value) Large novaflon gaskets can be supplied with scarfed edges and welded in one piece. Ideal for large gasket dimensions in use with corrosive media, for example in heat exchanger applications. Optimised leakage properties compared with PTFE dovetail joints Uncritical handling Less installation work Shorter downtime Do you have any questions about your application? The gasket information service will help you: gaskets@frenzelit.de

6 Good for people and the environment. Frenzelit has obtained certification that the company complies with the Quality management requirements of ISO 91, ISO/TS and ISO 11. This means complete ISO 91 transparency in all areas and a high degree of security for our customers. ISO/TS Environmental management ISO 11 IPPC directive and TA Luft Since October 2 plant operators have had to observe the drasstically tightened threshold values on diffuse emissions that's what the revised German fugitive emission regulation TA Luft requires which have thus been adjusted to the new European regulation (Council Directive 96/61/EC) as well as to new environmental and technical standards. All novaflon products observe the strict leakage criteria of the German fugitive emission regulation TA Luft comfortably. FL/4/6.11/1/FL All previous versions of this prospectus cease to apply. Subject to technical amendment. GASKETS TECHNICAL TEXTILES EXPANSION JOINTS INSULATION NEW MATERIALS Frenzelit Werke GmbH P.O.Box Bad Berneck Germany Phone: Fax: info@frenzelit.de

7 Technical Data Sheet novaflon 1 Material profile: Gasket material made of modified PTFE filled with hollowglassmicrospheres Typical applications: General and chemical industry Universal media resistance Supply data: Sheet sizes in mm: 15x15 Thickness in mm: 1.5 / 2. / 3. General data Approvals: Colour: Branding: Tolerances in thickness: FDA / TA Luft / GL light blue novaflon 1 with Frenzelit honeycomb acc. DIN Property Standard Unity Value * Physical Identification DIN TF - G - O properties (Gasket thickn. Density DIN [g/cm³] mm) Tensile strength DIN [N/mm²] 16 Residual stress σ de/16 DIN C, 3 N/mm², 16h DIN [N/mm²] 12 Compressibility Recovery Cold compressibility ε KSW Cold recovery ε KRW Hotcreep ε WSW/15 Hot recovery ε WRW/15 Specific leakage rate ASTM F 36 J [%] 25 ASTM F 36 J [%] DIN [%] DIN [%] 4 DIN [%] 45 DIN [%] 6 DIN [mg/(m * s)].15 Specific leakage rate acc. TA Luft VDI 24 / TA Luft [mbar * l/(s * m)] 5.8*1-6 Helium, 1 bar, 3 MPA * = Mode (typical value) Issue: 7.1 Modifications: 4 Supersedes all prior versions The technical data stated has been determined with standard material under laboratroy conditions. With the variety of installation and operating conditions no guarantee claim can be inferred regarding the behaviour of a flanged joint. We reserve the right to product changes which serve the purpose of technical progress. Frenzelit Werke GmbH Postfach/P.O.Box Bad Berneck/Germany Phone: Fax: info@frenzelit.de Internet: