Cartridge valves are commonly installed into a manifold block and include pressure, directional, and flow control valves. Manifold blocks are made of steel or aluminum with passages machined out and cavities for valves to be inserted into.
Manifold blocks save space, limit the number of hoses and fittings needed, and give flexibility to circuit designs.
Cartridge valves are commonly poppet valves, but can also be spool valves instead. Poppet type cartridge valves are 2-way valves, and spool type valves come in 2-way, 3-way, or 4-way designs.
Slip-in cartridge valves typically consist of a valve sleeve, poppet and spring. They slip into the manifold block and are held in by a cover plate that bolts on to the manifold, which seals it off.
As simple as this valve sounds, the variety of designs and their use in circuits can get pretty complex. This has even lead to the saying:
Let’s help to overcome that before it becomes an issue. Read on!
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