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DIFFUSION ABRASION SLEEVE DAS

  • Black or red textile (Polyamide 6) sleeve for the assistance in protection of people and machinery via protection and bundling of hose, hose assemblies, cables, wires etc.
  • Dense yet not bulky protection is achieved through
    • 1. protection of the encased product from abrasion
    • 2. being very effective in reducing the concentrated stream of pin hole leaks
  • Burst resistant
  • The smooth surface facilitates sliding over even very long assemblies, and use of talcum powder or compressed air will further facilitate the process
  • Offers good leakage containment in the event of hose failure
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Product Details
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Outer Cover
Available in black or red

Application

  • Widely used as abrasion protection wherever hoses and cables may be exposed to damage through rubbing
  • Gaining widespread acceptance as an effective (though not total) barrier to the dangers of hydraulic hose leaks in the vicinity of personnel, especially in underground coal mining
  • Additional protection can be achieved using two layers of DAS sleeve
  • The sleeve must be securely fixed to the ferrule of the hose fitting if effective protection is to be achieved at the hose to fitting interface. Epoxied heat shrink is preferred, although other methods may be adopted
  • A loose fit is preferred when seeking to gain protection against a hose leak
  • Meets MDG41 requirements

Materials and Specifications

  • De-aerated compact woven nylon fibres (Polyamide 6)
  • In test conditions the sleeve contained the sharp stream of hydraulic oil passing through a 0.8 mm Diameter pre-drilled hole when the pressure was raised to 800 bar and held for 1 minute
  • Abrasion resistance exceeds the requirements of ISO 6945 (holds up to 50,000 cycles)
  • Oil retention capability of 100 PSI pressure for 3 Minutes when tested to SAE J343
  • Approved by USMSHA ( Fire resistance ) for the use in mines.
  • Tested to ISO 8031 for electrical conductivity (anti-static)
  • Melting point 225 degrees C +/- 10 degrees C

Features

  • Offers High Abrasion Resistance.
  • DAS can assist in reducing the dangers of hose leaks or pinhole failure.
  • MSHA Approval

Important Safety Note
Diffusion Abrasion Sleeve (DAS) is a diffusion device and conditionally a burst suppression device

Notes
Light crimping of the sleeve to the ferrule using a stainless steel 'DAS Ring' is also recommended. Consult Pirtek for the applicable crimp dimensions

Temperature Range
-60 degrees C to 125 degrees C
Product Table
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Item Coil Length - mtr Nom ID mm Flat Nom ID mm Round Diameter
DAS-112 50 176 112
DAS-112RD 50 176 112
DAS-20 50 31 20
DAS-20RD 50 31 20
DAS-25 50 39 25
DAS-25RD 50 39 25
DAS-31 50 49 31
DAS-31RD 50 49 31
DAS-40 50 63 40
DAS-40RD 50 63 40
DAS-53 50 83 53
DAS-53RD 50 83 53
DAS-60 50 94 60
DAS-60RD 50 94 60
DAS-73 50 115 73
DAS-73RD 50 115 73
DAS-93 50 146 93
DAS-93RD 50 146 93