Silicone Straight Reducer is a reinforced, high-performance connector designed to join pipes and tubing of different diameters in automotive, marine, and industrial systems. Constructed with a smooth extruded silicone compound inner layer, reinforced with multiple layers of polyester braids, and finished with a durable silicone outer layer, the reducer provides excellent flexibility, strength, and long-term resistance to heat and pressure. Built to SAE J20 R3 standards, it withstands continuous operating temperatures from -50°C to +250°C, making it suitable for demanding environments such as engine bays, cooling systems, and turbocharger pipework. Supplied in a standard 127 mm length, the silicone straight reducer is available in a wide range of diameters from 6.5 mm to 102 mm, ensuring compatibility across diverse installations.

Key Features:

• Inner Layer: Smooth extruded silicone compound for reliable sealing and flow efficiency.

• Reinforcement: High-strength polyester braids for durability and pressure stability.

• Outer Layer: High-grade silicone for ozone, abrasion, and heat resistance.

• Construction: 3–4 ply reinforced wall with smooth bore design.

• Operating Temperature: -50°C to +250°C (peak +250°C).

• Internal Diameter Range: 6.5 mm to 102 mm.

• Working Pressure: From 12.33 bar (small bore) down to 2.8 bar (large bore).

• Bursting Pressure: Typically 3x working pressure (up to 37 bar).

• Bending Radius: From 16 mm (small bore) up to 70 mm (large bore).

• Length: 127 mm overall length for secure coupling.

• Standard: SAE J20 R3 compliant.

The silicone straight reducer combines strength, flexibility, and durability, making it highly effective in systems where a transition between different pipe sizes is required. Its polyester-reinforced construction provides dimensional stability and pressure tolerance, while the high-grade silicone outer layer resists cracking, ozone, and environmental degradation. The smooth internal bore supports efficient fluid or air transfer with minimal turbulence, while the robust wall thickness ensures long-term resilience under vibration, heat, and continuous use. With working pressures up to 12.33 bar for smaller diameters and burst ratings up to three times the working pressure, the reducer offers a wide safety margin for both performance and heavy-duty applications.

Applications include automotive cooling and induction systems, turbocharger and intercooler connections, marine cooling circuits, industrial fluid handling, and agricultural machinery. The silicone straight reducer is widely used in motorsport, custom fabrication, and engineering projects where durable, heat-resistant, and size-transitioning connectors are essential. Keywords: silicone straight reducer, reinforced silicone hose reducer, high-temperature silicone coupler, SAE J20 R3 compliant reducer, industrial silicone hose connector, silicone transition hose.