Silicon Hoses - Silicone Straight Reducing Hose 48mm to 32mm

• Silicone Straight Reducer provides a compact, heat-resistant step-down connection for fluid transfer and pneumatic systems across industrial, commercial, and automotive environments. Manufactured from smooth extruded silicone with integral polyester braid reinforcement, this silicone reducer coupler delivers stable pressure handling and controlled flexibility for reliable, leak-tight joints between mismatched pipework. The polyester reinforced silicone reducer maintains a consistent smooth bore to reduce turbulence and pressure loss, while the 127 mm overall length aids secure clamping and hose tail engagement. Suitable for air, water, and compatible media, the reducer operates from -50°C to +250°C and conforms to SAE J20 R3 for general-purpose silicone hose. Available in an extensive internal diameter range, silicone straight reducer tubing supports medium-pressure duties where durability, thermal stability, and long service life are essential.

  Key Features:

  • Material: Smooth extruded silicone with polyester fibre reinforcement.

  • Construction: Straight step-down reducer, smooth bore for efficient flow.

  • Internal Diameter Range: 6.5 mm to 102 mm (size-to-size reducing coupler).

  • Length: 127 mm overall.

  • Wall Thickness: 4.5 mm (smaller sizes) to 5.5 mm (larger sizes).

  • Working Pressure: Size dependent, up to ~12.33 bar.

  • Burst Pressure: Minimum 3× working pressure.

  • Reinforcement: 3–4 plies (3-ply smaller sizes; 4-ply larger sizes).

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

  Built for demanding service, the AutoSiliconeHoses silicone straight reducer uses a multi-ply polyester braid lay-up to stabilise the tube under pressure and vacuum while controlling expansion for predictable performance. The smooth-bore silicone lining promotes efficient flow and reduces energy loss in medium-pressure lines, supporting stable throughput in pneumatic, cooling, and industrial fluid handling circuits. Precision-moulded geometry and consistent wall thickness improve clamp load distribution, helping maintain seal integrity under vibration and thermal cycling. Silicone’s inherent resistance to heat, ozone, and aging extends service life in engine bays and plant environments, while balanced flexibility simplifies installation and accommodates minor misalignment without kinking. The step-down configuration allows clean transitions between different pipe diameters, minimising turbulence and aiding compact layout of assemblies in confined spaces.

  Typical applications include air intake and charge-air connections, coolant return and bypass lines, irrigation and water transfer manifolds, and light chemical service where material compatibility is observed. In manufacturing and MRO, polyester reinforced PVC-free silicone reducer tubing supports pneumatic tools, compressors, and process equipment requiring reliable medium-pressure hose couplings. Common industries encompass automotive engineering, agriculture, HVAC maintenance, general fabrication, and industrial fluid handling. By combining heat resistance, dimensional stability, and robust multi-ply reinforcement, AutoSiliconeHoses silicone straight reducer provides a durable, space-efficient connection for step-down transitions across diverse industrial applications.

We understand it can be a bit confusing to figure out if a part will work for your car. No worries! Just shoot us a message with your question, and our friendly sales team will then be in touch to confirm if this part is the correct for your vehicle!

Disclaimer:

Products sold by Nineteen72 Performance are exclusively designed for off-road or sanctioned competition use. Any use on public roads is strictly prohibited and may violate local, state, and federal laws. Nineteen72 Performance does not confirm the legality of road use; it is the consumer's responsibility to comply with applicable laws. Use of these products for any purpose other than intended is at the user's own risk. Nineteen72 Performance is not liable for misuse or non-compliance.

Warranty:

At Nineteen72 Performance, we proudly back every product in our store, ensuring that each item comes with a comprehensive warranty.

All components crafted by our esteemed third-party partners in the store are accompanied by a minimum one-year manufacturer's warranty. Our warranty terms are uniform across all products, providing coverage for any manufacturing defects that may arise over time, excluding typical wear and tear. Your satisfaction and product durability are our top priorities.

Shipping & Returns:

At Nineteen72 Performance we offer worldwide shipping.

14-Day Easy Returns at Nineteen72 Performance

Love what you bought from Nineteen72 Performance? Great! If not, no worries. Enjoy a hassle-free 14-day return window. Just ensure your items are unused and in their original condition. For returns, contact us at Returns@Nineteen72Performance.co.uk. Your satisfaction drives us.

Klarna
Offers a number of options at checkout including: Pay Later (delay payment by up to 30 days, interest free); Split Payments (split payments in 3 up to 3 months, interest free); Installments (split payments up to 6 months interest-free, up to 24 months interest bearing). Maximum purchase £1,500.

0% Interest is available. Select 'Klarna' at checkout.