Table Of Contents - Danfoss PVG 32 Technical Information

Proportional valve group

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Technical information (68 pages)

Service manual (44 pages)

Application manual (13 pages)

Table Of Contents

Table of Contents

Technical Information

PVG 32 Proportional Valve Group

Contents

General description

Safety in application

Function

PVG 32 technical data

Electrical actuation

Technical characteristics

Danfoss | August 2017

Features of PVG 32........................................................................................................................................................................... 5

PVG modules .....................................................................................................................................................................................5

PVP, pump side modules..........................................................................................................................................................5

PVB, basic modules.....................................................................................................................................................................5

Actuation modules..................................................................................................................................................................... 6

Remote control units ......................................................................................................................................................................6

PVG 32 with open center PVP...................................................................................................................................................... 7

PVG 32 with closed center PVP....................................................................................................................................................8

PVG 32 sectional view.....................................................................................................................................................................9

Load sensing for variable displacement pump supply.......................................................................................................9

Control system example..............................................................................................................................................................12

Examples of wiring block diagram..................................................................................................................................... 14

Load sensing controls...................................................................................................................................................................16

LS control with bleed orifice (do not use with PVG valves).......................................................................................16

Integral PC function................................................................................................................................................................. 16

Load sensing system characteristics:.................................................................................................................................16

Remote pressure compensated controls.............................................................................................................................. 16

Remote pressure compensated system characteristics:............................................................................................ 17

Typical applications for remote pressure compensated systems:..........................................................................17

PVG 32 main spool with pressure compensated control................................................................................................ 17

Pressure compensated system characteristics.............................................................................................................. 18

Typical applications for pressure compensated systems...........................................................................................18

PVPC adapter for external pilot oil supply............................................................................................................................ 18

PVPC with check valve for open center PVP................................................................................................................... 18

PVPC without check valve for open or closed center PVP.........................................................................................19

PVMR, friction detent....................................................................................................................................................................21

PVMF, mechanical float position lock.....................................................................................................................................21

PVBS, main spools for flow control (standard).................................................................................................................... 21

PVBS, main spools for flow control (linear characteristic)............................................................................................... 21

PVBS, main spools for pressure control................................................................................................................................. 22

Background.................................................................................................................................................................................22

Principle....................................................................................................................................................................................... 22

Application..................................................................................................................................................................................23

Sizing.............................................................................................................................................................................................23

Limitation.................................................................................................................................................................................... 24

PVPX, electrical LS unloading valve.........................................................................................................................................24

PVH, hydraulic actuation............................................................................................................................................................. 26

PVM, mechanical actuation........................................................................................................................................................26

PVE, electrical actuation.............................................................................................................................................................. 26

PVPX, electrical LS unloading valve.........................................................................................................................................29

Electrical control of PVG.............................................................................................................................................................. 30

Closed loop control....................................................................................................................................................................... 31

PVEO................................................................................................................................................................................................... 32

PVEM...................................................................................................................................................................................................32

PVEA, PVEH, PVES, PVEU.............................................................................................................................................................. 33

PVEP.................................................................................................................................................................................................... 33

PVED-CC and PVED-CX.................................................................................................................................................................33

PVHC................................................................................................................................................................................................... 34

General...............................................................................................................................................................................................36

PVP, pump side module.............................................................................................................................................................. 36

520L0344 | BC00000038en-US0802 | 3