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® PTFE Fluoropolymer Helically Convoluted Inner Tube
Polypropylene Braid, Low Profile

Features and Benefits

See Chemfluor® fluoropolymer inner tubes (WCS/BCS)
Polypropylene braid
  • Ultraviolet (UV) stabilized
  • Lightweight
  • Does not conduct internal heat as readily as stainless steel braided hoses
  • Burn potential from accidental contact greatly reduced
Unit of Measure

Specifications

Inside Diameter

 N/A 1/2 in12.7 mm

Outside Diameter

 N/A 7/8 in21.3 mm

Max. Length

 N/A 100 ft
Max. Working Pressure1 N/A 250 psi1.72 MPa
Min. Burst Pressure2 N/A 1000 psi6.90 MPa

Min. Bend Radius

 N/A 1.75 in44.45 mm

Vacuum Hg (@ 70ºF)

 N/A 29.9 in75.95 mm

Weight

 N/A 0.10 lbs/ft0.15 kg/m

Inner Tube

 N/A Chemfluor® White

Applications

N/A

  • Chemical transfer
  • Solvent transfer
  • Acid lines
  • CIP lines
  • Food and beverage

Common Media

N/A

  • Sulfuric acid
  • Hydrofluoric
  • Caustic solutions
  • Hot water cleaning

Details

N/A Construction:

  • Inner Tube:
    -Chemfluor® natural PTFE fluoropolymer

  • Reinforcement: Polypropylene braid
    -Each strand of large diameter (denier) polypropylene monofilament is twisted and subsequently twined prior to braiding
    -Tested for maximum abrasion and chemical resistance
Fittings
  • PermaSeal® crimp-style
    -Over 40 styles of 316L stainless steel conventional fitting designs
    -Standard: 316L stainless steel
    -Consult factory for optional fitting materials - carbon steel, PVDV (Kynar®), polypropylene or other alloys
    -This design eliminates the need for a secondary crimp collar or plastic heat shrink tubing
    -Also assures hose pressure rating to rated operating pressure
  • See Fitting Details: Flare-Thru Fittings; PermaSeal® Fittings; Adapter Fittings

Engineering Specifications

N/A Temperature Rating

  • -40ºF to +250ºF
  • -40ºC to +121ºC

Industry Approvals & Compliances

N/A

  • USDA
  • FDA
  • U.S. Pharmacopeia Class VI

Pressure Rating

N/A Burst Pressure ratings at ambient 70ºF (21ºC). See notes below on vacuum/pressure ratings at temperatures other than ambient.
Data given is for straight hose installation through 250ºF.
Decrease working pressure to 30 psig for all sizes @ temperatures above 175ºF. Consult factory for higher temperature applications.
Specifications shown here supersede all previous catalogs.

  • 1 Decrease working pressure to 30 psig for all sizes @ temperatures above 175ºF. Consult factory for higher temperature applications.
  • 2 Burst pressure ratings at ambient 70ºF (21ºC). See notes below on vacuum/pressure ratings at temperatures other than ambient.