Multi-Layer Braiding for Demanding Applications

Technical Braiding Solutions for High-Pressure and Special Applications

In numerous industrial applications, hose and piping systems are required to do far more than simply transport a medium. They must withstand high pressures, absorb mechanical loads, and remain reliable over the long term, even under demanding thermal or chemical conditions.

Multi-layer braiding performs a key protective and reinforcing function in such applications. Depending on the requirements, two, three, or up to four braided layers are applied to a carrier hose. By combining different materials in a targeted manner, the properties of the hose system can be precisely adapted to the respective operating conditions.

Typical applications include chemical media lines and specialized technical solutions in mechanical and plant engineering. Particularly where high pressure loads, demanding media, or changing environmental conditions are involved, operational reliability and reproducible product characteristics are of particular importance.

The design of multi-layer systems can vary considerably depending on the application. Carrier hoses may, for example, be based on PTFE, PFA, or PE, and may also include corrugated or spiral-corrugated Teflon hosedesigns. The individual braided layers can consist of metallic wires, flat wire, or technical yarns. Commonly used materials include stainless steel 1.4301, nickel, glass fiber yarn, aramid, PES, and PPS.

Each braided layer can perform a specific technical function. While metallic layers primarily contribute to mechanical reinforcement and pressure resistance, textile materials can reduce thermal influences, serve as functional intermediate layers, or support the durability and flexibility of the overall system.

The achievable pressure resistance depends not only on the number of braided layers. The carrier hose, the materials used, material thicknesses, the coverage ratio, as well as the relevant testing and operating conditions also influence the performance of the overall system.

Depending on the design and application-specific configuration, multi-layer hose systems can achieve burst pressures of more than1,000 bar.

Multi-layer braiding is therefore far more than an additional outer protective layer. It consists of precisely engineered functional components that combine high pressure resistance, mechanical stability, media resistance, and flexibility within a technical hose system.