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manufactured in the usa

Pureflex® Task-Line® Gaskets

Through a proprietary process, FDA approved, pure virgin PTFE resin is compression molded around and through a 304 stainless steel, perforated metal insert. After oven sintering, every PureFlex® TASK-LINE® PTFE lined gasket undergoes a 15,000-volt spark test to check for pinholes. The porous-free PTFE resin 100% encapsulates the stainless insert, isolating it from any fluid contact while in service.

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PTFE lined gaskets

Product Features & Benefits

  • HANDLES AN EXTREME TEMPERATURE RANGE: TASK-LINE® gaskets have a temperature range of cryogenic to 400°F (consult factory for higher temperatures)
  • NO MORE FABRICATION, EASY INSTALLATION: gaskets are molded to size, ½" through 24” in class 150# and 300# ANSI ratings with a thickness of ⅛" or 3/32” (other thicknesses available upon request). Installation is quick and simple. TASK-LINE gaskets are self-aligning and seat easily to any flange in almost any condition.
  • CHEMICAL RESISTANT: to all acids, chlorides, sulfates, bleach solutions, solvents, phenols, caustics, and peroxides.
  • LEAK FREE AND BUBBLE TIGHT: TASK-LINE gaskets offer maximum protection, are non-porous, leak-free, bubble-tight and can be used over and over without sacrificing sealing ability.  
  • ZERO CORROSION: gaskets have zero corrosion rates which contribute to lower life-cycle costs when compared to envelope or solid gasket types.
  • BLOWOUT PROTECTION: the strength of the metal inserts provides critical blowout-proof protection.
  • PTFE NON-STICK PROPERTY: allows the gasket to easily release from flanges during disassembly without any scraping.
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Technical Details

Size Range

  • Size: molded to size, ½" through 24” in class 150# and 300# ANSI ratings
  • Thickness: ⅛" or 3/32” (other thicknesses available upon request)

Materials of Construction

  • Pure virgin PTFE resin, FDA Approved

Service Temperature

  • temperature range of cryogenic to 400°F (consult factory for higher temperatures) 
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Pressure Rating

pressure temperature curve

Task-Line gaskets have been tested in excess of the above pressures. Consult factory for higher pressure applications.



  • Acid Transfer
  • Pickling
  • Reverse Osmosis
  • Steam Transfer
  • Molding Equipment
  • Adhesives
  • Air Actuation
  • Sanitary Transfer
  • Purification Systems
  • Centrifuges
  • Extrusion Presses
  • Caustic Wash
  • High Purity
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View Our Chemical Resistance Guide

This resource is intended as a guideline to be used with all available information to determine suitability of material selection. We suggest thorough research which should include known applications when determining material. The information contained herein is provided only as a guide for the use of ANDRONACO INDUSTRIES products.

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