20 Transportation Railway Max. Working Pressure 160 bar Material Coupling: Stainless Steel Plug: Stainless Steel Seals: NBR Applications • Pneumatic Braking Systems • Pneumatic Applications Working Temperature -54°C up to +80°C (NBR) (connected) -40°C up to +60°C (NBR) (for the disconnection) depending on the medium. Special seals are available on request. Technical Description Straight-Through coupling system for Railway applications Advantages • STR couplings allow a maximum flow for a very low pressure drop. • When connected, the external seal prevents any ingress of contaminants (brake dust, road salt, water). • Hardened stainless steel construction for high resistance to vibrations and mechanical stress. Nominal Diameter 3/6/9/12/16 Parker Series STR Flow diagrams StraightThrough Water Pressure Drop (bar) Flow Rate in l/min Water Pressure Drop (bar) Flow Rate in l/min Water Pressure Drop (bar) Flow Rate in l/min
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