PVG 100 New heights in flow-sharing

Maximize productivity and machine efficiency Closed center load sense with fixed or variable pumps Post-compensated design for proportional flow Integrated pilot-operated checks

System integration for optimized vehicle architecture Hybrid valve solutions Integrated priority inlets Commonality with other PVG products, e.g. electrical actuators

PVG 100 – Why ? Stringent engine emission requirements require LS systems to meet efficiency levels. Market is moving towards flow sharing options. Hydraulic system design are flow and power limited. Machines are growing in size & capability – results in higher flow – higher pressure – more electronics are implemented. Total vehicle cost savings.

PVG 100 – What is it? Post-Compensated Directional Control Valve Fulfills demands for flow/power limited systems Simplifies operator control Allows accurate, precise movement Customized configurations with sectional design Utilizes common hardware within PVG family For use with fixed/variable displacement pumps.

Introduction of PVG 100 Pre-Compensation Post-Compensation Features Compensator located in front of main spool Compensator controls individual P, determined by the LS work-port pressure, and the compensated pressure. Compensator spring and LS opens the compensation spool Compensator located after main spool Compensator controls the P, determined by the highest load pressure (LSmax), and the pump pressure - P across the opening area of the main spool. Compensator spring and (LSmax) closes the compensation spool. Simplified Cetop diagram Advantages Enables individual control to LSA/B work-port pressure limitation. Flow-Sharing Side Effects Flow-Sharing not possible Inhibits individual control to LSA/B

Flow Sharing Definition Post-compensated valves achieve load independent flow control regardless of the level of supply flow available. When the flow demand exceeds the available supply, a proportional reduction in demanded flow for each section is achieved. When the flow demand is less than the available supply, full demanded flow for each section is delivered.

Flow Sharing Definition Graph

Flow Sharing Definition Schematic

Quiz? - PVG32 Pre-compensated Where does the flow go? Pump Flow 100lpm Section #1 – 100lpm spool @ 200bar load Section #2 – 100lpm spool @ 100bar load Section #1 – 65lpm spool @ 200bar load Section #2 – 65lpm spool @ 100bar load

PVG 100 – Features Hybrid solution PVG32/100 Hybrid solution PVG32/100/HIC

PVG 100 – Features

Work Sections

PVG 100 – Features Working Pressures to 350 bar Compensated Flow to 180 lpm Return Flows to 320 lpm Stand by Pressures from 15-35 bar Operating Temperature Range –30 to 90 C Viscosity to 6 cSt Priority Flow up to 60 lpm

PVG 100 – Features Standard programme consists of : 14 Inlet module variants 8 Working module variants 48 Spools (Incl. Assembl. variants) Interface modules Up to 8 PVB 100 sections per valve group Up to 10 PVB100/32 sections per valve group PVM (Manual actuation) PVE (Electrical actuation) PVLP (Shockvalves) As for PVG 32

1 2 4 3 6 5 PVG 100 Configurations Closed Center with End Module Closed Center with Interface Module 1 2 PVPV 100-1 PVB100 PVB100 PVB100 PVT100 PVPV 100-1 PVB100 PVBZ32 PVB32 P PVTI100/32 T LX B A PVS32 B B B P T A A A LX Closed Center with Interface module Closed Center with End Module 3 PVPV 100-2 PVB100 PVTI100/32 T PVBZ32 PVB32 PVS32 P LX B A 4 PVPV 100-2 PVB100 PVT100 P T LX B A Open Center with Interface Module Open Center with End module 5 6 PVP 100-4 PVB100 P T LX PVT100 B A PVP 100-4 PVB100 PVBZ32 PVB32 PVS32 P PVB100/32 T LX B A

Inlet Configurations Closed center inlet modules (PVPV) Pilot supply for electrical actuation Facility for pilot shut off Integrated priority valve (CF and Tank ports) Open center inlet modules (PVPF) Facility for full flow dump (electrical) BSP & SAE versions Gauge connection for Accumulator Pilot pressure

Work Section Configurations All sections have integrated pressure compensator (post compensated) With/without Pilot Operated Checks With/without shock valves in A & B port BSP & SAE versions Mechanical, Hydraulic or Electrical Actuators Float Available – Also with P.O. Checks Spools Closed ported (cylinder) Open ported -- throttled (motor) 40, 65, 100, 130, 150 and 180 lpm

PVG 100/32 Interface Module-PVTI Interface with Tank port Shock & anti cavitation valves (PVLP) BSP SAE T To Must use PVG 32 with T0 Ls Pp P

Endcover Configurations Tank module PVT Shock & anti cavitation valves (PVLP) BSP & SAE LX port (LS connection for additional valves)

Actuation modules Standard is always manual actuator PVM combined with : PVE, for electrical actuation PVES – super proportional PVEH – proportional high PVED – Canbus interface PVEA – proportional fine PVEO – ON/OFF Hirschmann – AMP connectors Active – passive fault monitoring PVH, cover for hydraulic actuation PVMD, for mechanical actuation PVMR, for friction detent PVMF, for mechanical detend, float

Where to Apply Load sense systems Flows >100 lpm Varying flow during work cycle Multiple functions required simultaneously Improved controllability required Remote/electrical control Flexibility of configurations Hybrid solutions Energy management

Technical Support TST Nordborg Direct telefax: +45 7488 3632 Internal address: L32-S141 E-mail: Casper Friis cfriis@sauer-danfoss.com Mariann Ebbesen mebbesen@sauer-danfoss.com Arne Egholm aegholm@sauer-danfoss.com Finn Kaad fkaad@sauer-danfoss.com Steen Larsen slarsen@sauer-danfoss.com Poul V. Pedersen pvpedersen@sauer-danfoss.com Louise Callesen lwendelbo-nielsen@sauer-danfoss.com Henrik Thunoe Hthunoe@sauer-danfoss.com Updated June 2005

PVG 100 New heights in flow-sharing www.sauer-danfoss.com