This paper describes a new principle for pilot-operated hydraulic relief valves. The new, patented feature enables pressure relief valves to not only limit a pressure differential, but also to limit ...

Heavy-duty priority flow-control valves provide a simple and efficient way to supply auxiliary hydraulic power to mobile work tools and attachments, such as hydraulic impact hammers, compactors, saws, ...

Flow is controlled by either throttling or diverting it. Throttling involves reducing orifice size until all of the flow cannot pass through the orifice; bypassing involves routing part of the flow ...