In certain applications, you can use a PVG with a pressure control (PC) spool instead of a traditional flow
control (FC) spool. The PC spool provides a dampening effect on natural oscillations because the PC spool
maintains a constant pressure on the work port while allowing a variable flow, depending on changes in
the work port load.
A situation in which PC spools are of great value is when you are lowering a load in an application that
uses counterbalance (CB) valves. A combined FC and PC spool, with the FC in the lifting port and the PC
in the lowering port, results in optimal controllability.
Application Guide
Using flow or pressure control spools
Summary
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Danfoss | Feb 2017 AB00000079en-US0101 | 11
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