High Temperature Radiator Silicone Hose in HY-RH-642

Application

The HY-RH-642 is a high-temperature radiator silicone hose in Premium Silicone Rubber.

Silicone tolerates the heat cycling of a radiator circuit better than EPDM, and the hose is supplied straight, as 45°/90° elbows or a 180° U-bend to match the layout.

Application scenarios

• Radiator circuits where heat cycling is hard and silicone's temperature headroom is the point.
• High-performance and modified cooling systems, where silicone outlasts EPDM under heat.
• Markets with hot climates, where radiator temperatures cycle harder than temperate regions.

Technical notes

• Silicone tolerates higher heat cycling than EPDM, which is why it is the high-temperature radiator choice.
• The hose is supplied straight, as 45°/90° elbows or a 180° U-bend to match the layout without kinking.
• Compound, reinforcement and inner diameter are confirmed per application.

Procurement notes

• For cooling-system importers this is the high-temp silicone radiator line — specify the form (straight, elbow, U-bend) and bore up front.
• Within the rubber-hoses category, the HY-RH-642 is the high-temp silicone radiator entry, distinct from the EPDM radiator lines and the reinforced turbo line — confirm the circuit rather than interchanging.

Selection notes

• Specify the form (straight, 45°/90° elbow or 180° U-bend) and inner diameter.
• Confirm the working temperature and pressure.
• Request the dimensional tolerance on the bore for batch orders.

Maintenance

• Inspect for hardening, cracking or soft spots in the radiator circuit.
• Replace on a time or mileage schedule rather than waiting for failure.
• Bleed the cooling system correctly after replacement.