Which of the following hydraulic hose components generally determines the pressure at which the hose can operate?

The reinforcement of a hydraulic hose is a critical component that determines the pressure rating of the hose. It typically consists of layers of woven or braided fibers, such as steel or synthetic material, which provide the strength necessary to withstand internal pressures. The strength of this reinforcement materials ensures that the hose can handle the pressures generated by the hydraulic system without bursting or failing.

When a hydraulic system operates, pressure is built up within the hose as fluid is transmitted through it. If the reinforcement is insufficient or damaged, the hose can fail under high pressure, leading to leaks or ruptures. Therefore, the design and material of the reinforcement are fundamental in establishing the safe operational pressure limit of the hose.

The covering provides external protection against abrasion, weathering, and other environmental factors, but does not influence the pressure capacity. The tubing itself is the inner component that carries the hydraulic fluid and can also contribute to flow characteristics, but the actual pressure capabilities are primarily a function of the reinforcement. End fittings connect the hose to other components in the system and do not determine the operational pressure of the hose itself.