Le passé et le présent des collecteurs hydrauliques

Le passé et le présent des collecteurs hydrauliques

Hydraulic manifolds are fundamental components designed to house hydraulic valves. The evolution of hydraulic manifold design encompasses three main installation methods: pipe-mounted valves, plate-mounted valves, and cartridge valves.

Pipe-Mounted Valves:

Initially, hydraulic systems relied heavily on pipe-mounted valves installed directly onto piping. Despite their robust reputation, these valves introduced numerous leakage points, complicating system maintenance and repair. Their scattered installation increased the likelihood of system failures and maintenance challenges.

Plate-Mounted Valves:

In response to the shortcomings of pipe-mounted valves, engineers developed plate-mounted valves. These valves could be integrated into a single manifold block, significantly simplifying the hydraulic system’s layout and reducing leak points. Consolidating multiple valves onto a single block improved system reliability and maintenance efficiency.

However, as valves were increasingly integrated into single blocks, the weight and size of these blocks also increased. This made manufacturing, installation, and maintenance cumbersome.

Innovations in Plate-Mounted Valves:

To address these challenges, engineers adopted a modular approach. They sliced large manifold blocks into smaller sections, assembling them using long bolts and seals to prevent leaks. This modular design reduced overall weight and simplified manufacturing and maintenance. Additionally, incorporating stack valves on plate-mounted valves minimized manifold size and enhanced functionality.

Cartridge Valves:

Modern hydraulic systems demand high flow rates, pressure, rapid response times, and compact size. Cartridge valves have emerged as a solution to these demands. Fully embedded within manifold blocks, cartridge valves connect through an intricate network of internal channels. This design minimizes manifold size and effectively eliminates oil leakage issues between stacked valves.

In conclusion, the evolution from pipe-mounted valves to plate-mounted valves and finally to cartridge valves reflects the industry’s ongoing pursuit of efficiency, reliability, and compactness. As hydraulic systems advance, so too will the design and functionality of hydraulic manifolds, meeting the increasing demands of modern applications.

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