Discreet and indispensable
To lift something too heavy, it uses a lever. And to return the lever to its position, one sometimes needs another lever for the lever: however tiny, it still is indispensable.
What we are talking about is a “quick disconnect coupling”, with which farmers can now quickly without tools connect and disconnect hydraulic hoses from their tractors to various equipment (trailers, plough, etc.).
In the model manufactured by Parker Hannifin, a clamp valve, a small element made of composite plastic, replaces several steel components. Thanks to this replacement, the connector, one of the most rigid existing in the market, can be used even in extreme temperatures whilst retaining its elasticity.
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