Hydraulic Hoses & Fittings UK : Selection Guide for Industrial, Construction & Hydraulic Systems In all sectors of industry, a reliable flow of pressurized fluid is essential to maintaining the operational efficiency of plant, machines and production systems. One of the most technically significant decisions for hydraulic hoses fittings UK procurement teams and engineers is to choose the right hydraulic hoses fittings. From assembly to make in Birmingham, to replacement of hose runs on offshore rigs in Aberdeen, and maintenance on construction plant throughout England and Scotland, the type, fitting standard, pressure rating and material combination is the key to reliable plant availability or an expensive and potentially dangerous failure. Everything you need to know about making informed, compliant and cost-effective procurement decisions is in this selection guide. Hydraulic hoses and fittings are parts that are used to move and manage high pressure hydraulic fluids in equipment and machinery. They install pumps, valves, cylinders and other hydraulic equipment safely and efficiently. What Are Hydraulic Hoses and Fittings? Hydraulic hoses and fittings are the soft, flexible "blood vessels" of the hydraulic system. Hoses are used to carry pressurized fluid between components, including pumps, valves, actuators, cylinders, and motors, around obstacles and distances where rigid pipework is not able to go. Just like the hose, the selection of fittings will be as important as the terminal connecting parts between hose ends and system components, as these fittings are used to ensure a leak-free connection. The British Fluid Power Association (BFPA) notes that fluid power technologies, such as hydraulic systems, are applied across the UK's manufacturing, construction, transportation, energy and industrial sectors, playing a key role in thousands of critical applications, with hose reliability affecting productivity and safety. A full hydraulic hose assembly would consist of: Inner tube — is the tube that contains the hydraulic fluid; should be able to withstand the chemical effects of the fluid used Reinforcement layer(s) — steel wire braid or spiral layers that withstand the internal pressure. Abrasion protection, UV protection, ozone protection, chemical protection, mechanical damage protection: Outer cover. Secure end fittings — crimped and/or re-usable or push-fit; secure to system ports. For more information on hydraulic system components and selection criteria – including pumps, valves, actuators and circuit design. Types of Hydraulic Hoses: Selection Matrix Not all hydraulic hoses are equal. The construction, reinforcement layers, and inner tube materials vary greatly between the types of hose; many hose failures are caused by the wrong hose being chosen. The table below outlines the main industrial hydraulic hoses used in industry throughout the UK. Hose Type Max Pressure Flexibility Typical Application 1-wire braid (1SN/R1) Up to 225 bar Excellent Low/medium pressure, tight routing 2-wire braid (2SN/R2) Up to 400 bar Good General industrial hydraulics 4-spiral (R9/4SP) Up to 420 bar Moderate Heavy plant, excavators 6-spiral (R12/R13) Up to 690 bar Low Very high-pressure systems Thermoplastic Up to 700 bar Very good Compact, high-pressure, low weight PTFE-lined Up to 700 bar Moderate Chemical-resistant, high-temp Wire Braid Hoses (1SN / 2SN — ISO 1436) Single and twin steel wire braid hoses are the workhorses of standard hydraulic hose assemblies UK industrial applications. They offer excellent flexibility for tight installation routing and are widely used in general manufacturing, material handling, and mobile equipment. Spiral Reinforced Hoses (R9 / R12 / R13 — ISO 3862) Four and six-spiral hoses are specified for heavy plant, excavators, and industrial presses operating at very high working pressures. Their multi-layer steel spiral reinforcement resists pressure impulse fatigue — making them the preferred choice on construction fleets, quarrying equipment, and offshore machinery. Thermoplastic Hoses Thermoplastic hoses deliver very high pressure ratings in a compact, lightweight assembly — advantages valued on mobile equipment and in space-constrained industrial installations. They resist kinking and are compatible with a wide range of hydraulic fluids, including water-glycol and phosphate ester types. PTFE-Lined Hoses Polytetrafluoroethylene-lined hoses provide exceptional chemical resistance and wide temperature tolerance. They are specified in applications involving aggressive hydraulic fluids, high-temperature environments, or where fluid contamination from hose inner tube degradation must be eliminated. Hydraulic Fitting Standards: BSP, JIC, and ORFS Compared One of the greatest causes of compatibility issues and hydraulic leaks on UK industrial sites is fitting selection. There are three manufacturers that dominate the hydraulic hose fittings UK procurement, BSP, JIC and ORFS. It is crucial to …