PSI Pikotek (GPT Industries)

PSI-Pikotek and Protection Engineering for Flange Isolation, Casing Spacers, and End Seals.

Products Include:

Casing Isolators

End Seals

Sealing Gaskets

Insulating Gaskets

LineBacker Gaskets

GasketSeal Gaskets

Flange Isolation Kits

Sleeves & Washers

Link-Seal® Modular Seals

VCFS Gaskets (Firesafe Gaskets)

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The GPT Advantage

GPT offers an extensive product portfolio that includes Linebacker® flange sealing and isolating devices, Ranger II® pipeline casing spacers/isolators; the original LinkSeal® modular sealing system for piping penetrations through walls, floors, ceilings and bulkheads; Riser-Wrap® manhole filtration sealing systems; and hole-forming products.

GPT is the world’s leading manufacturer of critical-service flange systems and electrical flange isolation kits for the oil and gas, water/wastewater, chemical, energy, construction and infrastructure industries.

Technical Data & MSDS Back to Supplies

Applications & Industries

Wood and Pulp Processing


Chemical Plants

Pipeline and Distribution

Production Fields

Shipboard Installations

Electric Power Generation

Steel Mills

LNG and SNG Systems

Petroleum Facilities

Water/Waste Water

LineBacker® Sealing/Isolating System

LineBacker® sealing gaskets utilize a 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. With the unique "quad" ring design, elastic memory is provided for elastomers not normally associated with this characteristic. Materials such as AFLAS, TFE (Teflon) and KALREZ may therefore be used as sealing elements which dramatically increases the options available for matching gasket materials to service and environmental conditions. This greater variety of materials also provides excellent temperature and chemical range compatibility. LineBacker® sealing gaskets are self energizing with theoretical near zero "m" and "y" factors resulting in effecting a positive seal without excessive bolt loads required with flat gaskets.

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Protection Engineering

PO Box  8996

Pittsburg, CA 94565

Tel: 925.427.6200 or 801.785.1546


For information call: 800-878-8837

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