Malone Speciality provides screw-in hydraulic cartridge valves, which have gained popularity in recent years, because they allow quick design of customized hydraulic circuits using a machined manifold block. Manifold blocks can range from two valves to 50 or more and are easily manufactured with little investment using standard equipment and tooling.
Today, cartridge valves fall into three major categories—the common-cavity valve, the floating valve cavity, and the metric-cavity valve, which is prevalent in Europe. Cartridge valves now encompass a vast array of functions with broad flow and pressure capabilities and continue to develop along with ever more affordable and advanced electronic controls.
The mounting dimensions of the valves adhere to strict guidelines (notably ISO/TR 17209) and subtle variations in features are almost endless from one manufacturer to another. The metric cavity system preferred by many European manufacturers is governed by ISO 7789. However, both of these standards have limited scope, covering only 2-, 3-, and 4-port valves within defined size ranges.
