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LineBacker® Sealing Gaskets
Suggested Flange Isolation Material Compatibility
Medium | Retainer | Seal | Temp. Range °F | Temp. Range °C |
|---|---|---|---|---|
Acetone | Phenolic | EPDM | +32 to +80 | 0 to +27 |
Air | G-10 | Nitrile | -40 to +225 | -40 to +107 |
Ammonia Dry | G-10 | Teflon | -65 to +220 | -54 to +104 |
Ammonia (Wet)*** | G-10 | Teflon | +32 to +100 | 0 to +38 |
Bleach | G-10 | Teflon | +32 to +80 | 0 to +27 |
Butylene (Butidiene) | G-10 | Teflon | +32 to +100 | 0 to +38 |
Carbon Dioxide | G-10 | Nitrile | +32 to +150 | 0 to +66 |
Caustic Soda (NaOH) | C O N S U L T F A C T O R Y | |||
Cryogenic | G-10 | Teflon | -300 to +280 | -184 to +138 |
Ethanol | G-10 | EPDM | +32 to +100 | 0 to +38 |
Ethylene (Ethene) | G-10 | Teflon | +32 to +80 | 0 to +27 |
Fuel Oil | G-10 | Viton | -20 to +280 | -29 to +138 |
Gas, Natural | Phenolic | Nitrile | -40 to +220 | -40 to +104 |
Gas, Sour | G-10 | Viton | -20 to +220 | -29 to +104 |
Gasoline | G-10 | Teflon | -65 to +225 | -54 to +107 |
Hydrogen | G-10 | Nitrile | -40 to +250 | -40 to +121 |
Jet Fuel | G-10 | Viton | -20 to +225 | -29 to +107 |
LNG | G-11 | Teflon | -300 to +100 | -184 to +38 |
Mercaptan | G-10 | Teflon | -20 to +80 | -29 to +27 |
Methanol | G-10 | Teflon | +32 to +100 | 0 to +38 |
MTBE | G-10 | Special Nitrile | +32 to +80 | 0 to +27 |
Nitrogen | Phenolic | Nitrile | -40 to +220 | -40 to +104 |
Oil, Crude | G-10 | Viton | -20 to +280 | -29 to +138 |
Oxygen** | G-10 | Teflon | -65 to +250 | -54 to +121 |
Pentane | G-10 | Teflon | +32 to +80 | 0 to +27 |
Propane | G-10 | Nitrile or Teflon | +32 to +80 | 0 to +27 |
Propylene | G-10 | Viton | +32 to +80 | 0 to +27 |
Sewage | G-10 | Viton | -20 to +280 | -29 to +138 |
Spent Liquor | G-10 | Teflon | +32 to +100 | 0 to +38 |
Steam | C O N S U L T F A C T O R Y | |||
Styrene | G-10 | Teflon | +32 to +80 | 0 to +27 |
Sulphur (Molten) | G-10 | Teflon | +32 to +280 | 0 to +138 |
Tolulene | G-10 | Viton or Teflon | +32 to +150 | 0 to +66 |
Water (hot) | G-10 | EPDM | +175 to +280 | +79 to +138 |
Water (Potable) | G-10 | EPDM | +32 to +280 | 0 to +138 |
Water (Sea) | G-10 | EPDM | +32 to +280 | 0 to +138 |
White Liquor | G-10 | Teflon | +80 to +280 | +27 to +138 |
* = G-7 material should not be used with hydrocarbons, not even trace amounts.
** = These are organic materials that will feed a fire if a leak occurs and an ignition source exists.
*** = Ammonia (wet) - Data to +100°F (+38°C) only (same materials as dry).
General Notes:
The foregoing performance data are intended as guidelines only. Performance suitability for any specific applications
should be determined by the user. Variation in temperature, pressure, concentration or mixtures acting synergistically may
preclude suggested service use.
Material selection is at the sole risk of the user. Consult with a specialist or PSI factory for specific applications.
PSI’s responsibilities will be limited to those listed in the PSI standard warranties.
Metal Retainers:
LineBacker® gaskets are available with a wide range of metal retainers to offer compatibility with flange metals, for
extremely hazardous fluids or for extremes in termperatures and pressures.