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PSI后卫密封垫片

添加时间:2010-11-26 编辑: 阅读:

  • 产品名称:PSI后卫密封垫片
  • 产品定货号:MS-00493-00
  • 产地:美国
  • 推荐:
PSI LineBacker® Sealing Gaskets utilize a patented rectangular sealing element, referred to as a “quad” ring, in combination with a unique groove design to effectively seal and isolate flanges of all types. This unique design provides elastic memory. Materials such as polyimide, TFE (Teflon) and vinyl may be used as sealing elements, which dramatically increases the options available for matching gasket materials to service and environmental conditions. A much broader range of retainer material/seal element combinations may therefore be used for excellent temperature and chemical range compatibility.
Features of the LineBacker® Sealing Gasket:
Eliminates flange leaks.
Guards against blowouts.
Protects against fire and hostile environments.
Usable with any type of flange.
Matches gasket materials to service conditions.
Lowest possible clamp and compressive load.
Increases gasket life.
Insulating version is both a positive seal and a superior insulator.
Available in all standard ANSI and API flange sizes from 1/2” and above.
Available in custom or odd sizes and shapes.
Available in pressure ratings for all ANSI and API rated flanges.\
For pressures from hard vacuum to 50,000 psi and higher.
How LineBacker Works
Before Tightening
The flange faces come into contact with the sealing elements, which extend slightly above the surface of the retainer. As the flange is tightened the sealing elements are compressed and move sideways into the inclined portion of the groove, developing a high unit pressure against the flange faces.,
After Tightening
The flange faces have come into firm contact with the retainer, thus encapsulating the sealing elements within grooves. At the same time, the unique LineBacker seal configuration provides elastic memory for elastomers not normally associated with this characteristic - resulting in a simple flat gasket with extremely high loading and self energizing characteristics without adverse cold flow problems.,
Wide Choice of Materials
LineBacker® gaskets are available in a wide variety of retainer and sealing element combinations for matching gaskets to service and environmental conditions. This greater variety of materials also provides excellent temperature and chemical range compatibility.
 
Metal Retainer
Materials
Insulating Retainer
Materials
Sealing
Elements
Aluminum
Brass
Carpenter 20
Carbon Steel
Cast Iron
Clad Steel Materials
Copper
Ductile Iron
Hastelloy B
Hastelloy C
Hastelloy X
Inconel X
Monel
Nickel 200
Soft Iron
Stainless Steel
Tantalum
Tin
Titanium
Vanadium
Ceramic
Epoxy Glass
Glass
Lucite
Melamine
Phenolic
Polyester Glass
Polyethylene
Polyphenol Ether
Pyrox
Silicone Glass
Vinyl
Buna-N (Nitrile)
Buna-S
Butyl
EPDM
Hypolon
Kel-F
Natural Rubbers
Neoprene
Nylon
Polyimide
Polyurethane
Silicone Rubber
Teflon*
Vinyl
Viton*
*DuPont
Suggested Sealing Gasket Material Compatibility
Medium
Retainer
Seal
Temperature
Range °F
Temperature Range °C
Acetone
Phenolic
Nitrile
+32 to +80
0 to +27
Air
G-10
Nitrile
-65 to +225
-54 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)
G10
Teflon
-65 to +225
-54 to +107
Cryogenic
G-10
Teflon
-300 to +280
-184 to +138
Ethanol
G-10
Nitrile
+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
-65 to +220
-54 to +104
Gas, Sour
Phenolic
Viton
-20 to +220
-29 to +104
Gasoline
G-10
Teflon
-65 to +225
54 to +107
Hydrogen
G-10
Nitrile
-65 to +250
-54 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
-65 to +220
-54 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*
G-7*
Teflon
to +450
To +232
Steam
G-3
Teflon
to +392
To +200
Steam*
Yellow Jacket
No Seal
to +450* or +392
to +268* or +200
Styrene
G-10
Teflon
+32 to +80
0 to +27
Sulphur (Molten)
G-10
Teflon
+32 to +280
0 to +138
Toluene
G-10
Viton or Teflon
+32 to +150
0 to +66
Water (Hot)
G-10
Nitrile
+175 to +250
+79 to +121
Water (Potable)
G-10
Nitrile
+32 to +250
0 to +121
Water (Sea)
G-10
Nitrile
+32 to +250
0 to +121
White Liquor
G-10
Teflon
+80 to +280
+27 to +13
 

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PSI后卫密封垫片MS-00493-00



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