Heat Resistant Braided Silicone Heater & Vacuum Hose HY-RH-647

Application

The HY-RH-647 is a heat-resistant braided silicone heater and vacuum hose.

The silicone compound tolerates under-bonnet heat and the braid resists vacuum collapse, which together make it the heater-line and vacuum-line choice.

Application scenarios

• Heater and vacuum lines, where the hose must hold vacuum without collapsing.
• High-heat under-bonnet circuits, where silicone is the compound of choice.
• Cold-climate heater circuits, where vacuum holding matters.

Technical notes

• Braided reinforcement resists collapse under vacuum, which plain silicone does less well.
• Silicone gives heat headroom, and the braid adds mechanical strength.
• Compound, reinforcement and inner diameter are confirmed per application.

Procurement notes

• For performance importers this is the heat-resistant braided silicone line — specify the circuit and bore up front.
• Within the rubber-hoses category, the HY-RH-647 is the heat-resistant braided entry, distinct from the HY-RH-639 braided line and the non-braided silicone lines — confirm the circuit rather than interchanging.

Selection notes

• Specify the circuit (heater vs vacuum) and the inner diameter.
• Confirm the braid reinforcement and working temperature.
• Request the dimensional tolerance on the bore.

Maintenance

• Inspect for hardening, cracking or collapse on vacuum lines.
• Replace on a time or mileage schedule rather than waiting for failure.
• Confirm the clamps are tight and the hose is not kinked.