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Encapsulated O-Rings | Structure | Chem Resistance | Groove Design | Installation | Dimensions | Tolerances | Misc Info |Material Data

manufacturers of high performance encapsulated o-rings and elastomer products since 1987

Encapsulated O-Rings and Extrusions for Extreme Applications

Buy Quality American Made Encapsulated O-Rings and Viton® fluoroelastomer extrusions

 Encapsulated O-Rings with Teflon® FEP or PFA resins:

  Features:

• High Chemical Resistance: Chemical attack and swelling are the primary causes of O-Ring failure. ENCAP-O-Seal™ encapsulated o-rings are virtually chemically inert.
   
• Outperforms solid PTFE O-Rings: ENCAP-O-Seal™ encapsulated o-rings match the chemical and temperature resistance of solid PTFE O-Rings, ENCAP-O-Seal™  encapsulated o-rings possess properties of elasticity and recovery which are crucial  in many sealing applications.
   
• Economical: ENCAP-O-Seal™ encapsulated o-rings economically and effectively  replace Kalrez and other exotic O-Ring compounds. ENCAP-O-Seal™ encapsulated o-rings will decrease downtime and hence increase profitability wherever corrosive fluids and gases cause premature seal failure.
   
• Wide Temperature Range: ENCAP-O-Seal™ encapsulated o-rings withstand breakdown caused by industrial solvents and corrosive materials at elevated  temperatures from -60° C/-75° F to +205° C/400° F. (See General Specifications)
   
• Non Stick Surface: Provides easy cleanup of viscous materials.
   
• Low Coefficient of Friction: .2 on metal. Self lubricating surface.
   
• Sanitary: Eliminates contamination of fluids by elastomers.  Sterilizable and autoclavable. FDA compliant, USP Class VI compliant, NSF compliance available for specific applications.
   
• Unlimited Sizes: Available in standard and metric sizes from  .059" cross section x ½" I.D. to virtually unlimited larger sizes.
   
• Low Compression Set: ENCAP-O-Seal™ encapsulated o-rings consist of either a solid silicone or Viton® fluoroelastomercore encapsulated in Teflon®* FEP/PFA resin (with .010 to .045 wall depending cross section) which meets or exceeds requirements of L-P389A and ASTM-D-2166. (see technical  bulletin)
   
• *DuPont Registered Trademark

GROOVE CONSTRUCTION  RECOMMENDATIONS
FOR ENCAP-O-SEAL TEFLON® ENCAPSULATED O-RINGS

CROSS SECTION NOMINAL SQUEEZE MIN. ID RANGE MAX. ID RANGE GROOVE WIDTH .070 .103 .139 .210 .275 .020 .025 .030 .045 .050 .250 .500 1.00 2.10 3.00 1.50 2.50 5.00 ANY ANY .100 .130 .175 .275 .350

NOTE: The above applies to minimum width and depth recommendations for machined grooves in metal. Recommended surface finish of 32 micro inches or better.  

GENERAL SPECIFICATIONS

1.Encapsulation material: DuPont Teflon® FEP:  Tetraflouroethylene-Hexafluoropropylene. Dupont Teflon PFA: Tetraflouroethylene-Perfluoro (Propyl Vinyl Ether).

2. Core material: Dow Corning Silicone, Viton® fluoroelastomer Type A, Viton® GFS  elastomers.

3. Continuous service temperature:

A. Teflon FEP Encapsulation with Silicone Core: 400F/204C. to -75F/-60C
B. Teflon PFA Encapsulation with Silicone Core: 500F/260C to -75F/-60C
C. Teflon FEP Encapsulation with Viton® fluoroelastomer core: 300F/149C to -10F/-23C
D. Teflon FEP Encapsualtion with HT Viton® fluoroelastomer core: 400F/204C to -10F/-23C
E. Teflon PFA Encapsualtion with HT Viton® fluoroelastomer core: 400F/204C to -10F/-23C 

4. Coefficient of friction: .1 to .2 on metal surfaces.

5. Water absorption: <0.01.

6. Average total shore A hardness:

85-90 shore A for solid silicone core.
90-95 shore A for solid Viton® fluoroelastomer core.
75-80 shore A for hollow silicone core.

7. FDA Compliance: The clear TEFLON® FEP/PFA encapsulation of the ENCAP-O-SEAL o-ring complies with part 177 of Title 21 of the Food and Drug  Administration’s regulations for safe use as articles or components of  articles for producing, manufacturing, processing, preparing, treating,  packing, transporting or holding food in accordance with regulation 177.1550.

Encapsulated O-Rings | Structure | Chem Resistance | Groove Design | Installation | Dimensions | Tolerances | Misc Info |Material Data

 Viton® is a registered trademark of DuPont Performance Elastomers

Plant: M-Cor Inc. | 3405 Byron Rd. | Helena,MT. USA |59602

Offices: M-Cor Inc. | 227 James St. | Bensenville,IL.USA | 60106

Phone: (630) 860-1150 Fax: (630) 860-0522
Content © 2001-2008 M-Cor Incorporated.

TEFLON® ENCAPSULATED O-RINGS

M-Cor, Inc.Copyright 2001-2008 Teflon® is DuPont registered trademark.ENCAP-O-SEAL is the copyright property of M-Cor,Inc.’s encapsulated o-ring. Viton® is a reg.trademark of DuPont Performance Elastomers