A jacketed hose is a type of flexible hose assembly designed with two concentric hoses:
• Inner Hose (Core Hose): Carries the primary media (e.g., bitumen, asphalt, molten sulphur, tar, resins, polymers, adhesives, etc.).
• Outer Hose (Jacket): Circulates a heating or cooling medium (commonly steam, hot oil, or sometimes coolant) to maintain the required temperature of the product flowing inside the core hose.
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Key Features
• Temperature Control: Keeps viscous or solidifying materials at the right temperature during transfer.
• Construction:
• Inner Hose: Corrugated stainless steel or PTFE for chemical resistance.
• Outer Hose: Corrugated stainless steel with braid reinforcement.
• End Connections: Can be welded or flanged, with jacket inlets/outlets for steam/hot oil flow.
• Flexibility: More flexible than rigid jacketed pipes, suitable for installations where movement or vibration exists.
• Safety: Prevents clogging, solidification, or degradation of temperature-sensitive media.
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Applications
• Bitumen/asphalt transfer for road construction.
• Hot melt adhesives, waxes, and polymers.
• Sulphur and resins transport.
• Food processing (chocolate, syrups, oils that solidify at room temp).
• Chemical plants requiring constant heating/cooling of process fluids.
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Advantages
• Ensures continuous, clog-free flow of viscous media.
• Flexible design allows use in confined spaces where jacketed rigid piping isn’t possible.
• Can be custom-designed for specific pressure, temperature, and media compatibility.
