Dunham Rubber & Belting Corporation
Dunham Rubber & Belting Corporation
682 Commerce Parkway West Drive, Greenwood, IN 46143
Toll Free: 800.876.5340
Tel: 317.888.3002
Fax: 317.888.2335
Email: mail@dunhamrubber.com
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Chemfluor® Fluoropolymer Smooth Inner Tube
Externally Convoluted EPDM Rubber Cover

Features and Benefits
  • Reduced force to bend
  • Improved bend radius
  • Ultra-flexible, easy to handle, kink resistant
  • Smooth ID when bent
  • High Pressure Rating
  • Sterilizable, Autoclavable
  • Imparts no taste or odors
  • Non-aging liner
  • Full Vacuum rated
  • Resistant to chemicals, ozone and abrasion
Note:
Extended Service Life Tip:
Suggest using full-length anti-kink armor casing or at least 16" to 24" long anti-kink cuffs (see Hose Cover Options) at each fitting end to help reduce the strain on the crimp collar and fittings in high load installations. Prolonged service at elevated temperature will reduce total service life.
Unit of Measure

Specifications

Inside Diameter

 N/A 3.00 in76.2 mm

Outside Diameter

 N/A 3-3/4 in94.0 mm
Max. Working Pressure1 N/A 150 psi1.03 MPa
Min. Burst Pressure2 N/A 600 psi4.14 MPa

Min. Bend Radius

 N/A 22.00 in559 mm
Vacuum Hg (@ 70ºF)3 N/A 29.9 in

Weight

 N/A 2.50 lbs/ft3.73 kg/m

Applications

N/A

  • Load cells
  • Skid transfer
  • Pumping stations / portable pumps
  • Vessel or tank transfer
  • Rail car loading / unloading
  • Transfer lines
  • Chemical process lines

Details

N/A Colors: Green cover/white stripe
Construction:

  • Inner Tube: Chemfluor® FEP
  • Cover: Convoluted EPDM rubber
  • Reinforcement:
    -Multiple polyester plycord and EPDM rubber
    -Double helix, high tensile strength rubber carbon steel wire
Fittings:
  • Over 40 styles of stocked PermaSeal® crimp-style fittings
  • A wide range of materials available
  • Standard: 316L stainless steel (wetted surfaces)

Engineering Specifications

N/A Temperature Rating

  • -40ºF to +350ºF
  • -40ºC to +177ºC

Industry Approvals & Compliances

N/A

  • FDA approved per 21 CFR 177.1550
  • US Pharmacopeia Class VI

Pressure Rating

N/A Burst Pressure ratings at ambient 70ºF (21ºC). See applicable notes below on vacuum/pressure ratings at temperatures other than ambient.
Working Pressure is given @ 70ºF; Decrease working pressure 1% for every 2ºF above 212ºF.
Vacuum Rating is given @ 70ºF; Decrease vacuum rating 1% for every 2ºF above 212ºF. For 1-1/2" and larger sizes, vacuum rating decreases when installed less than 2X min. Bend radius.
Flare-Thru fittings are pressure rated. Not rated for vacuum service.
Extended Service Life Tip: Suggest using full-length anti-kink armor casing or at least 16" to 24" long anti-kink cuffs (see Hose Cover Options) at each fitting end to help reduce the strain on the crimp collar and fittings in high load installations. Prolonged service at elevated temperature will reduce total service life.

  • 1 Working Pressure is given @ 70ºF; Decrease working pressure 1% for every 2ºF above 212ºF.
  • 2 Burst Pressure ratings at ambient 70ºF (21ºC). See applicable notes below on vacuum/pressure ratings at temperatures other than ambient.
  • 3 Vacuum Rating is given @ 70ºF; Decrease vacuum rating 1% for every 2ºF above 212ºF. For 1-1/2" and larger sizes, vacuum rating decreases when installed less than 2X min. Bend radius.