1. PVG 100
New heights in flow-sharing

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

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

4. 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.

5. 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.

6. 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

7. 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.

8. Flow Sharing Definition Graph

9. Flow Sharing Definition Schematic

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

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

12. PVG 100 – Features

13. Work Sections

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

15. 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

16. 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

17. 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

18. 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

19. 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

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

21. 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

22. 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

23. Technical Support TST Nordborg
Direct telefax:
Internal address: L32-S141
Casper Friis
Mariann Ebbesen
Arne Egholm
Finn Kaad
Steen Larsen
Poul V. Pedersen
Louise Callesen
Henrik Thunoe
Updated June 2005

24. PVG 100
New heights in flow-sharing