Danfoss PVG 16 Service Manual

Also see for PVG 16 PVH/Covers: Service and parts manual Technical information Installation guide

Contents

Danfoss PVG 16 Service Manual Manual pdf 10 page image

Remote 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 requirementsTypical applications for remote pressure compensated systems:• Modulating fan drives• Anti-stall control with engine speed feedback• Front wheel assist• Road rollers• Combine harvesters• Wood chippersService ManualPVG 16 and 32 Service Assembly/Disassembly GuideGeneral information10 | © Danfoss | November 2017 L1104530 | AX00000133en-US0106