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®Unpigmented PFA Fluoropolymer Smooth Inner Tube EPDM Rubber

Features and Benefits
  • Reduced extractables
    -Lower levels of extractable fluoride tons reduce silicone wafer corrosion
  • Superior chemical and heat resistance
  • Wide temperature range
  • Durable, kink resistant, with no external wire reinforcement to potentially fray
  • Easy-to-clean, non-stick smooth tube for assured sterility
  • Can be cleaned with steam, caustics, solvents or other cleaning agents
With some sanitary Clamped ends shorter lengths are possible.
Unit of Measure

Specifications

Inside Diameter

 N/A 2.00 in50.8 mm

Outside Diameter

 N/A 2-5/8 in67.3 mm

Max. Length

 N/A 100 ft

Max. Overall Length w. Anti-Klink Casing

 N/A 48 in
Max. Working Pressure1 N/A 250 psi1.72 MPa
Min. Burst Pressure2 N/A 1000 psi6.90 MPa

Min. Bend Radius

 N/A 11.50 in292 mm
Vacuum Hg (@ 70ºF)3 N/A 29.9 in75.95 mm

Weight

 N/A 1.50 lbs/ft2.24 kg/m

Applications

N/A

  • Semiconductor component processing
  • Semiconductor water carrier
  • Semiconductor Piping System
  • Portable pumps

Common Media

N/A

  • HCL
  • HF
  • H2SO4
  • Sodium Hydroxide
  • Peroxide

Details

N/A Colors:

  • White with gray layline
Construction:
  • Inner Tube: Unpigmented Chemfluor® PFA
  • Cover: EPDM rubber
  • Reinforcement:
    -Multiple polyester plycord and EPDM rubber
    -Double helix, high tensile strength steel wire
Fittings:
  • Over 40 styles of stocked PermaSeal® crimp-style fittings
  • A wide range of materials available
  • Standard: 316L stainless steel (wetted surfaces)
  • Flare-Thru fitting technology available
    -150# swivel style flanges
    -Female cam and groove (swivel style, 316 stainless steel body)
    -Sanitary clamp style not available.

Engineering Specifications

N/A Temperature Rating

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

Industry Approvals & Compliances

N/A

  • US Pharmacopeia Class VI

Pressure Rating

N/A Burst Pressure ratings at ambient 70ºF (21ºC). See applicable notes on vacuum/pressure ratings at temperatures other than ambient.
Working Pressure is given @ 70ºF; Decrease working pressure 1% for every 2ºF above 350ºF.
Vacuum Rating is given @ 70ºF; Decrease vacuum rating 1% for every 2ºF above 212ºF.

  • 1 Working Pressure is given @ 70ºF; Decrease working pressure 1% for every 2ºF above 350ºF.
  • 2 Burst Pressure ratings at ambient 70ºF (21ºC). See applicable notes on vacuum/pressure ratings at temperatures other than ambient.
  • 3 Vacuum Rating is given @ 70ºF; Decrease vacuum rating 1% for every 2ºF above 212ºF.