GMW14726 |
This standard covers the materials performance of elastomeric
turbocharger hoses with three (3) layers. Note: Four (4) layer
hoses for higher service temperatures are specified in GMW15408,
four (4) layer hoses with moderate temperature requirements are
subject of GMW16144.
Material Description. Materials covered by this
specification are divided into four (4) types:
Type A. Acrylonitrile
butadiene rubber (NBR) respectively Polychloroprene (CR) lining and
Polychloroprene cover for +100 °C permanent and +125 °C peak
temperatures.
Type B. Acrylic Ester/Ethylene
Copolymer (AEM) in lining and cover for +160 °C permanent and +175
°C peak temperatures.
Type C. Polyacrylate Rubber
(ACM) in lining and cover for +175 °C permanent and +185 °C peak
temperatures.
Type D. Drawing defined (e.g.,
using SAE J200 or ASTM D2000 line callout).
Type E. Chlorinated
Polyethylene Rubber (CM) in lining and cover for +125 °C permanent
and +135 °C peak temperatures. All hoses will have textile
reinforcement suitable to fulfill the requirements of the material
and durability tests.
Symbols. Not applicable.
Typical Applications. Hoses in
turbo charger circuits.
Remarks. Not applicable.
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