tesnilni material iz teflona - ptfe - trimad klinger ptfe in... · klinger’s range of...

Tesnilni material iz teflona - PTFE

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Polytetrafluoroethylene (PTFE) is almost chemically inert being attacked only under extreme conditions by molten alkali metals, certain fluorine compounds at elevated temperature and nuclear radiation. In this respect PTFE is very useful as a gasket material, but unfortunately, the material has a tendency to creep under load and has limited use in such applications.

Modified PTFE materials allow the benefits of PTFE to be utilised at higher compressive loads and higher temperatures. Expanding the PTFE, for example, produces a softer material with a higher strength than conventional PTFE. Whereas the addition of a filler such as silica, silicon carbide or barium sulphate lends the material better hot and cold flow resistance without negatively affecting the chemical resistance (see KLINGER-top-chem grades on pages 147 to 152).

PTFE can also be used as an envelope to a more conventional compressed fibre gasket material insert. This combines the chemical resistance of the PTFE with the stress retention and recovery properties of the insert and reduces the negative effect of the PTFE on the joint’s mechanical stability.

General Properties of PTFE

• Outstanding chemical resistance• Suitable for use with foodstuffs and pharmaceutical applications• Insoluble in solvents, even at increased temperature• Stable to light• Does not absorb water• Excellent electrical insulating capacity• Low thermal conductivity

Applications

• Aggressive or toxic fluids• Pharmaceutical industry• Food industry• Chemical industry

Expanded PTFE: KLINGERsoft-chem and KLINGERsealex

Soft-chem is a soft, highly compressible sealing material manufactured from expanded PTFE. Unlike conventional PTFE materials, Soft-chem has good creep resistance and bolt torque retention properties allowing it to be used to higher temperatures and to seal higher internal pressures.

KLINGERsealex is also manufactured in expanded PTFE but is in tape form with a pressure sensitive adhesive backing strip to assist with installation. Since the material is available in roll form it offers a solution to jointing needs without the need to maintain large stocks of cut gaskets.

PTFE


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Highly compressible, expanded PTFE

Applications:

• Virtually all media or where bolt load is limited• Food and pharmaceutical applications• Glass-lined or enamel flanges

Properties:

• Good mechanical properties at low to medium temperatures• Excellent chemical resistance• Highly compressible• Available in sheet form and as cut gaskets

Typical Specifications:Colour : WhiteCompressibility (ASTM F36J) : 50-60%Recovery (ASTM F36J) : 13-17%Stress relaxation

DIN 52913: 30MPa, 16h/150°C : 15 N/mm²Klinger hot/cold compression

Decrease in thickness at 23°C, 25MPa 35%Decrease in thickness at 150°C, 25MPa 30%

Gas leakage (DIN 3535/6) : <0.01ml/minDensity : 0.9g/cm³(Based on 1.5mm thick sample)

Tests and Certifications:

• FDA Conformity

Availability:

• Sheeting (m): 1.5 x 1.5• Thickness (mm): 1.0, 1.5, 2.0, 3.0

Pressure/Temperature Graph:

Area 1: Usually satisfactory to use without reference.Area 2: Usually satisfactory, but suggest you refer to Klinger for advice.Area 3: Caution: May be suitable but essential that you refer to Klinger for advice.

100

80

60

40

20

00-100 200100 300-200

Pres

sure

(bar

)

Temperature (˚C)

1

3

2

KLINGER SOFT-CHEM


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KLINGER SEALEX

Expanded PTFE Tape with adhesive backing

Applications:

• Virtually all media or where bolt load is limited• Food and pharmaceutical applications• Glass-lined or enamel flanges

Properties:

• Soft, highly compressible PTFE gasket material on a roll, with excellent chemical resistance and good creep properties

• Good mechanical properties at low temperatures• Excellent chemical resistance• Highly compressible

Typical Specifications:Colour : WhiteCompressibility (ASTM F36L) : 75-85%Creep relaxation

ASTM F-38 (3000 psi) : 44%Gas leakage(ASTM F37B, 30psi Nitrogen, 3000psi load) : 4.8ml/hour

Density : 0.6g/cm³(Based on 7 x 2.5mm thick sample)


• FDA Conformity

Availability:Dimensions

(mm)Roll length

(m) Dimensions

(mm)Roll length

(m) 3 x 1.5 30 14 x 5.0 5

5 x 2.0 20 17 x 6.0 5

7 x 2.5 15 20 x 7.0 5

10 x 3.0 8 25 x 8.0 5

Pressure/Temperature Graph:

Area 1: Usually satisfactory to use without refer-ence.Area 2: Usually satisfactory, but suggest you refer to Klinger for advice.Area 3: Caution: May be suitable but essential that you refer to Klinger for advice.

150

125

100

75

50

010050 200150 2500

Pres

sure

(bar

)

Temperature (˚C)

1

3

2

25


157

PTFE Envelope with compressed fibre insert

Applications:

• Virtually all media or where bolt load is limited• Food and pharmaceutical applications

Properties:

• Excellent chemical resistance• PTFE envelope gaskets comprise a compressed synthetic fibre gasket

material insert with a PTFE envelope. The PTFE envelope protects the gasket from chemical attack. The insert provides the strength andresilience needed for demanding sealing operation

• This gasket offers excellent chemical resistance under moderateconditions of temperature and pressure

PTFE ENVELOPES


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GORE™ tehnologija tesnenja


160

GORE™ SEALANTS - OUTSTANDING SEALING RELIABILITYW. L. Gore & Associates are the world’s leading supplier of expanded polytetrafluoroethylene (PTFE) components used in the transport and sealing of industrial fluids.

For over 25 years, GORE™ has been developing a complete understanding of factors that influence the effective sealing of vessels, pumps, valves and piping systems. This enable GORE™ to manufacture a wide range of sealing products renowned for quality and reliability.

At the heart of every product is a proprietary form of expanded PTFE. The unique properties of GORE™ expanded PTFE enable the engineering of high-performance products that are recognised throughout industry as the best on the market.

With this outstanding reputation in the sealing industry a partnership between Klinger and GORE™ was formed. Klinger are now an authorised distributor of GORE™ sealing products to compliment the Klinger’s range of semi-metallic gaskets and KLINGERSIL range.

GORETM Series 300 Tape

GORETM GR

GORETM DF Joint Sealant Tape


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GORE™ UNIVERSAL PIPE GASKET (STYLE 800)

Multi-directional ePTFE with diffusion tight layer

Applications:

• Designed for use in steel flanges, glass-lined steel flanges, FRP flanges and is also suitable for PTFE and rubber-lined flanges.

• Applications requiring excellent sealing properties at low surfacestresses.

• For industrial use only

Properties:

• 100% expanded PTFE• Seals at very low bolt load• Chemically inert• Temperature resistant• Highly conformable• Dimensionally stable• Resists creep and cold flow• For industrial use only

Typical Specifications:Colour : WhiteCompressibility (ASTM F36) : 57%Temperature range : -268°C to 270°CMaximum temperature : 315°C for short periodsMaximum pressure : 40barDesign factors

ASME m factor : 2.4ASME y : 1500psi


• TA-Luft Approval

Availability:

• Thickness (mm) : 1.5, 2.0, 3.0 & 6.0• Cut gaskets to suit :

ASME class 150 & 300 from 1/2” to 24”DIN rating from PN6 to PN40 at sizes from 15mm to 600mm


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GORE™ GR

Multi-directional ePTFE

Applications:

• Designed for use in steel flanges, glass-lined steel flanges, FRP flanges and PTFE and rubber-lined flanges

• For industrial use only

Properties:

• Chemically inert• Soft & conformable• Dimensionally stable• High tensile strength• Resistant to creep & cold flow• For industrial use only

Typical Specifications:Colour : WhiteCompressibility (ASTM F36) : 57%Temperature range : -268°C to 270°CMaximum temperature : 315°C for short periodsMaximum pressure : 40bar


• TA-Luft Approval

Availability:

• Thickness (mm) :1.0, 1.5, 3.0 & 6.0• Sheeting (m) : 1.5 x 1.5


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GORE™ JOINT SEALANT DF TAPE

Mono-directional ePTFE tape with adhesive backing

Applications:

• Designed for use in steel flanges, glass-lined steel flanges, FRP flanges and PTFE and rubber-lined flanges

• Large or complex flange shapes• For industrial use only

Properties:

• 100% expanded PTFE• Chemically inert, temperature-resistant• Ideal for large, complex or damaged surfaces• No wasteful scrap• Low stress to seal• Easy to install• Extremely tight seal• Outstanding versatility• Reliable sealing performance• For industrial use only

Typical Specifications:Colour : WhiteTemperature range : -268°C to 270°CMaximum temperature : 315°C for short periodsMaximum pressure : 10barDesign factors

ASME m factor : 1.5ASME y : 2500psi


• TA-Luft Approval• BAM Approval for use with oxygen• DIN-DVGW

Availability:

Width (mm)

Thickness (mm)

Spool Length (m)

5 10 25 50

1.0 1.0 - -

3.0 1.5 -

5.0 2.0 -

7.0 2.5 -

10.0 3.0 -

14.0 5.0 -

17.0 6.0 -

20.0 7.0 -

25.0 9.0 - -


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GORE™ SERIES 500 GASKET TAPE

Multi-directional ePTFE tape with adhesive backing

Applications:

• For use with steel pipe flanges and in large vessels requiringmechanically strong sealing materials

• Applications requiring good creep resistance• For industrial use only

Properties:

• Made from 100% multi-directionally expanded PTFE• Chemically inert• Temperature resistant• Highly conformable• Dimensionally stable• Resists creep & cold flow• 1.5mm & 3.0mm thicknesses can be used to replace sheet gasketing• Easy to install• For industrial use only

Typical Specifications:Thickness: 3.0mm 6.0mm

Colour : White White

Compressibility (ASTM F36) : 54% 44%Recovery (ASTM F36) : 16% 27%Temperature range : -268°C to 270°CMaximum temperature: 315°C for short periodsDesign factors

ASME m factor : 2.5 2.5ASME y : 2,750 psi 3,330 psi

Availability:

Width (mm)

Thickness

3mm 6mm

10 -

15

20

25

30

Available in 5, 10 and 20m spools


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GORE™ SERIES 600 GASKET TAPE

Multi-directional ePTFE tape with adhesive backing

Applications:

• Designed for use in glass-lined vessels• For industrial use only

Properties:

• Made from 100% multi-directionally expanded PTFE• Chemically inert• Temperature resistant• Highly conformable• Dimensionally stable• Resists creep & cold flow• Easy to install• For industrial use only

Typical Specifications:Temperature range : -268°C to 270°CMaximum temperature : 315°C for short periodsMaximum pressure : Full vacuum to 40 bar


• TA Luft Approval

Availability:

Width (mm)

Thickness

2mm 3mm 6mm

10

15

20

25

30 -

Available on 2.5 and 5m spools

Available on 5, 10 and 15m spools


tesnilni material iz teflona - ptfe - trimad klinger ptfe in... · klinger’s range of...

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