By continuing to browse this website or by clicking 'I Accept', you agree to the use of cookies. Cookies are stored on your computer or mobile device and enhance your site experience. To learn more about how we use cookies, you can click the 'Learn More' button.
Sealing Gaskets with a "quad" ring sealing element and a unique groove design for a wide choice of sealing materials.
Description
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
* G-7 material should riot be used with hydrocarbons, riot 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 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 temperatures and pressures. Please contact Corrosion Control Products Company.
Description
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
* G-7 material should riot be used with hydrocarbons, riot 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 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 temperatures and pressures. Please contact Corrosion Control Products Company.
Are you sure you would like to remove this item from the shopping cart?
This item is a part of the approved quote. Removing it will remove all quote items from the cart.
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.
