Pipeline Seal & Insulator, Inc.
6525 Goforth Street, Houston, TX 77021
Tel: 713-747-6948  •  Fax: 713-747-6029
Toll Free: 800-423-2410
e-mail: info@psipsi.com

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Sealing/Isolating Gaskets and Flange Isolation Kits



Sealing and Isolating Gaskets
Two of PSI's premier sealing gaskets are available with isolating retainers. Both LineBacker® and GasketSeal® gaskets may be ordered with isolating reatiners to match your application. In addition, you may choose from a wide variety of sealing elements so your completed gasket will consist of a combination of the best materials to seal the flange and maintain that seal for the life of the piping system.

LineBacker® Sealing/Isolating Gaskets
GasketSeal® Sealing/Isolating Gaskets
LineSeal™ Xtreme Critical Service Sealing Gaskets




Non-Isolating - Sealing Gaskets
Three of PSI's premier sealing gaskets are available with non-isolating (metallic) retainers. In addition to the LineBacker® and GasketSeal® gaskets, the FlangeMate® sealing gasket features a unique configuration that allows the use of even soft metallic materials (grafoil) to be used as seal elements. The hoop strength of metallic retainers virtually insures against the possibility of a gasket blow-out under any and all conditions.

LineBacker® Non-Isolating Sealing Gaskets
GasketSeal® Non-Isolating Sealing Gaskets
FlangeMate® Non-Isolating Sealing Gaskets




Flat Isolating Gaskets
Flat isolating gaskets are available in a wide variety of dielectric materials to eliminate the possibility of electrical currents passing through the flange. For additional protection, type "E" gaskets extend out to the O.D. of the flange to help eliminate the possibility of any metallic materials inadvertently becoming lodged between the flange faces and thus shoring-out the desired electrical isolation.

Rubber Faced Phenolic
Plain Phenolic
Red Devil
Yellow Jacket
Garlock
Teflon®




Specialty Gaskets
Significant chemical and material composition improvements are now being incorporated into sealing gaskets designed to address the regulations associated with asbestos type gaskets. Three versions are manufactured from new proprietary materials that provide excellent resistance against environmental leakage (zero environmental leakage) without the health hazards associated with asbestos type gaskets. All are available as either "E" or "F" type gaskets in isolating retainer materials.

LineBacker® Zero™ Sealing/Isolating Gaskets
LineBacker® 250™ Sealing/Isolating Gaskets
LineBacker® 251™ Sealing/Isolating Gaskets
LineSeal™ Xtreme Critical Service Sealing Gaskets




Custom Gaskets for Flanges
Custom sealing gaskets may be manufactured for flanges from 3/8" diameter and up. For added flexibility and to accommodate a wide variety of flange types, sealing elements may be positioned anywhere between the I.D. of the bold circle and I.D. of the gasket. In addition, PSI can manufacture gaskets with a double seal upon request if flange size, surface condition or other concerns warrant. Please contact factory for more information.
Custom Shaped Gaskets
Custom shaped gaskets may be manufactured to precise customer specifications for sealing mating surfaces of any configuration.

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Flange Isolation Kits
Flange isolation kits are available for all flange sizes, types, pressure ratings and materials. Each kit is individually and securely packed in a reinforced corrugated cardboard box, which is clearly labeled as to its contents for convenience in warehousing and field use inventory. Very large diameter gaskets are packaged separately from the sleeves and washers for convenience in storing and handling. Each gasket is labeled with the following information:

  • Materials (Retainer Material or Retainer/Seal element combination)
  • Pipe Size
  • ANSI Class
  • Date of Manufacture
  • Type Flange (Weld Neck or Slip-on)

Sealing Gasket Flange Isolation Kits
Flat Gasket Flange Isolation Kits