Flexitallic SIGMA® 600

SIGMA® 600 is a high performance biaxially orientated PTFE sheet sealing material with enhanced, low stress sealing characteristics.

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Producttype

Gaskets

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Certificates

TA Luft, WRAS, FDA

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Pressure

Vacuum to 85 bars

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Temperature

260 °C

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SIGMA® 600 is capable of creating a seal at very low stresses. This makes the product suitable not just for use in standard
metallic flanged connections but also in load compromised bolted connections; such as those applications involving glass lined,
plastic flanges and thin or distorted metal flanges. Suitable for sealing most chemicals across the whole pH range (0-14) with the exception of molten alkali metals and fluorine gas. Consisting entirely of PTFE, SIGMA® 600 is suitable for use with practically all chemical media.

Material Properties

Color
White
Thickness
1.5 mm
Sheetsize
1.5m x 1.5m

Typical Physical Properties

Density
0.75 g/cm³
ASTM F36A Compressibilty
68 %
ASTM F36A Recovery
5 %
BS 7531 Gas Permeability
0.01 mL/min
Maximum Temperature
260 °C
Maximum Pressure
Vacuum to 85 bars
ASTM F152 Tensile Strength
6.7 MPa
DIN 52913 Residual Stress @ 175°C
34 MPa
ASTM F37A Liquid Leakage; 1000 psi gasket stress 50 psi Fuel A
1.2 mL/hr

Approvals and test reports

  • TA Luft
  • WRAS
  • FDA

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