Danfoss PVG 100 Technical Information

Also see for PVG 100: Technical information Installation guide Service and parts manual Technical information Service manual

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Danfoss PVG 100 Technical Information Manual pdf 15 page image

Load sensing system characteristics:• Variable pressure and flow• Low pressure standby mode when flow is not needed• System flow adjusted to meet system requirements• Lower torque requirements during engine start-up• Single pump can supply flow and regulate pressure for multiple circuits• Quick response to system flow and pressure requirementsRemote pressure compensated controlsThe remote PC control is a two-stage control that allows multiple PC settings. Remote PC controls arecommonly used in applications requiring low and high pressure PC operation.Typical operating curve00Q maxPressur eFlowP101 969EPC settingRemote PC settingClosed center circuit with remote PCP101 966The remote PC control uses a pilot line connected to an external hydraulic valve. The external valvechanges pressure in the pilot line, causing the PC control to operate at a lower pressure. When the pilotline is vented to reservoir, the pump maintains pressure at the load sense setting.When pilot flow is blocked, the pump maintains pressure at the PC setting. An on-off solenoid valve canbe used in the pilot line to create a low-pressure standby mode. A proportional solenoid valve, coupledwith a microprocessor control, can produce an infinite range of operating pressures between the lowpressure standby setting and the PC setting.Size the external valve and plumbing for a pilot flow of 3.8 l/min [1 US gal/min]. For additional systemprotection, install a relief valve in the pump outlet line.Remote pressure compensated system characteristics:• Constant pressure and variable flow• High or low pressure standby mode when flow is not needed• System flow adjusts to meet system requirements• Single pump can provide flow to multiple work functions• Quick response to system flow and pressure requirementsTechnical Information PVG 100 Proportional Valve GroupPVG 100 function520L0720 • Rev EB • Jan 2014 15