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Mobile Controls Division 01/05/2015 Constant Flow Open Centre System “CFO” Spool in neutral Activated spool Typical flow characteristic Manually controled.

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Presentation on theme: "Mobile Controls Division 01/05/2015 Constant Flow Open Centre System “CFO” Spool in neutral Activated spool Typical flow characteristic Manually controled."— Presentation transcript:

1 Mobile Controls Division 01/05/2015 Constant Flow Open Centre System “CFO” Spool in neutral Activated spool Typical flow characteristic Manually controled valve 200 bar 100 bar 50 bar 100 bar 50 bar 100 % Spool travel Max. Pump Flow “METER OUT” LOWERING “METER IN” LIFTING System with fixed pump

2 Mobile Controls Division 01/05/ bar 100 bar 50 bar System with variable pump Load-sensing system “LS” Closed Centre Valve Spool in mid positionActivated spool Typical flow characteristic Manual controlled valve 100 % Spool travel Max. Pump Flow “METER OUT” LOWERING “METER IN” LYFTING

3 Mobile Controls Division 01/05/2015 F1 + pump L90LS valve Constant Flow Closed center system “CFC” System with fixed pump and LS valve

4 Mobile Controls Division 01/05/2015 THREE FUNCTIONS WITHOUT INDIVIDUAL PRESSURE COMPENSATORS System with fixed pump and LS valve

5 Mobile Controls Division 01/05/2015 INDIVIDUAL COMPENSATOR WITH PRESSURE REDUCTION FUNCTION OR FEED REDUCTION FUNCTION PILOT STAGE PRESSURE COMPENSATOR

6 Mobile Controls Division 01/05/2015 THREE FUNCTION WITH INDIVIDUAL PRESSURE COMPENSATORS System with fixed pump and LS valve

7 Mobile Controls Division 01/05/2015 Systems with fixed pump ”CFO” P pressure Systems with variable pump ”LS” P pressure Q flow Energy comparison in systems

8 Mobile Controls Division 01/05/2015 Great demands for manoeuvrability Arial lift Very suitable for ”LS” systems Applications well suited for ”LS” Great demands for productivity Forest machine Excavator Backhoe loader Hook loader Refuse collector Large wheel loader

9 Mobile Controls Division 01/05/2015 n When partial pump flow is used for individual functions n At high intensity usage n To create simple system solutions when a number of functions with different flow rates is demanded n When system layout is spread out n At simultanious operation of functions n Power control and energy conservation n Reduce energy losses at idling and transportation Suitable when; System with variable pump and LS

10 Mobile Controls Division 01/05/2015 n Avoid to mix light and heavy loads from the same pump. n Avoid to mix large and small flow demands from the same fixed pump. n Never control max flow with line mounted restrictors. n Always use the pump regulator to set maximum work pressure when you are using a variable pump. The pressure limiter of the valve needs to be set at least 30 bars above. n Avoid to limit valve work port pressure with the chock valves, use the build in individual work port feed reducer. n Make sure that the cylinders are correctly connected to the valve, the valve is normally adapted to the cylinder ratio. Save energy, design advises

11 Mobile Controls Division 01/05/2015 LS - Valve Range

12 Mobile Controls Division 01/05/2015 L90LS Features ­ Emergency stop ­ Individual pressure compensators ­ Feed reducers ­ Force control ­ Fast acting leake tight port relief valves ­ Counter pressure valve ­ Built-in pilot pressure supply ­ Wide range of spool-actuators ­ Wide range of function adapted spools ­ Copied load signal ­ Fixed or variable pump

13 Mobile Controls Division 01/05/2015 CFC-systems LS-systems Flow/section 90 l/min, without compensator 130 l/min Nodular iron Max pressure 320 bar Stackable 1 to 10 sections Service ports ­ G1/2 ­ 7/8” - 14UN Two speed control Lever release function Pump unloading inlet Built-in main & port relief valves Built-in feed reducers Copy spool function Function manifolds Spool actuators ­ manual ­ pneumatic prop & on-off ­ hydraulic ­ electro-hydraulic prop & on- off Pressure compensators Application adapted spools L90LS

14 Mobile Controls Division 01/05/2015 L90LS Applications ­ Forest machines ­ Articulated truck cranes ­ Fork lifts ­ Excavators ­ Refuse vehicles ­ Skip loaders ­ Drill rigs Customers ­ SISU Logging ­ F Weyhausen ­ Schaeff ­ Atlas Copco ­ Pel Job

15 Mobile Controls Division 01/05/2015 K170LS/K220LS Features ­ Individual pressure compensators ­ Feed reducers ­ Force control ­ Fast acting leak tight port relief valves ­ Counter pressure valve ­ Built-in pilot pressure supply ­ Wide range of function adapted spools ­ Copied load signal ­ Intermediate sections ­ Mid-inlet

16 Mobile Controls Division 01/05/2015 /K220LS K170LS/K220LS LS-systems Flow/section 170 l/min, without compensator 210 l/min Nodular iron Max pressure 320 bar Stackable 1 to 10 sections Motorports ­ G3/4 ­ 1 1/16” - 12UN ­ SAE 1” Built-in main & port relief valves Built-in feed reducers Copy spool function Spool actuators ­ hydraulic ­ electro-hydraulic prop & on-off Pressure compensators Application adapted spools Intermediate sections

17 Mobile Controls Division 01/05/2015 /K220LS K170LS/K220LS Applications ­ Forest machines ­ Excavators ­ Backhoe loaders ­ Reach stackers ­ Wheel loaders ­ Fork lifts Customers ­ Timberjack ­ Volvo ­ Barko ­ Ponsse ­ Kalmar LMV

18 Mobile Controls Division 01/05/2015 HV08 Features ­ Optional unloading valve in the inlet section ­ Flow force pressure compensation ­ Feed reducers ­ Force control ­ Fast acting leak tight port relief valves ­ Counter pressure valve ­ Wide range of function adapted spools ­ Copied load signal ­ Anti-priority function

19 Mobile Controls Division 01/05/2015 HV08 CFC-systems LS-systems Max flow/section 320 l/min Grey & nodular iron Max pressure 320 bar Stackable 1 to 6 sections Service ports ­ SAE 1” Built-in main & port relief valves Built-in feed reducer Copy spool function Spool actuators ­ manual ­ pneumatic prop & on/off ­ hydraulic ­ electro-hydraulic prop & on-off Application adapted spools Anti priority function

20 Mobile Controls Division 01/05/2015 HV08 Applications ­ Reach stackers ­ Articulated dump trucks ­ Mobile cranes ­ Forest machines Customers ­ Volvo ­ Kalmar LMV ­ SMV ­ Lansing

21 Mobile Controls Division 01/05/2015 M400LS Features ­ Poppet design ­ zero leakage ­ not sensitive to temperature shocks ­ Fast acting leak-tight port relief valves ­ Counter pressure valve ­ Function adapted spools ­ Low pressure drops ­ high function speed ­ low energy consumption ­ Priority function ­ Easy to install ­ Dual cylinder ports

22 Mobile Controls Division 01/05/2015 M400LS LS-systems Flow/section 450 l/min Nodular iron Max pump pressure 300 bar Max service port pressure 400 bar Monoblock 2-section Connections ­ Pump, 2 x 1 1/4 “ ­ Tank, 1 x 1 1/2” ­ Service ports, 8 x 1” Built-in port relief valves Built-in counter pressure valve Spool actuators ­ PC ­ FPC Built-in pressure-controlled float position function Priority function Poppet-valve concept Application adapted spools

23 Mobile Controls Division 01/05/2015 M400LS Applications ­ Wheel loaders ­ Reach stackers ­ Mobile cranes ­ Forest machines ­ Excavators Customers ­ Volvo ­ Ljungby Machine ­ Luna

24 Mobile Controls Division 01/05/ EMERGENCY STOP (BEN) CFC INLET SECTION + SPOOL SECTION L90LS

25 Mobile Controls Division 01/05/ Inlet Compensator, Emergency Stop Function and Main Relief Valve With Pilot Assembly LS PX PL P1T1 L90LS Inlet section

26 Mobile Controls Division 01/05/ LS2 Inlet Section Showing Direct Acting Fixed Setting Relief Valve Cartridge L90LS

27 Mobile Controls Division 01/05/ T L.S. P COMPENSATOR (K) DIRECTION CONTROL SPOOL L.S. LOGIC CHECK VALVE INDIVIDUAL PRESSURE REDUCTION FUNCTIONS T L.S. P A B MAIN STAGE PILOT STAGE P.L. P.X. LS1 Inlet Section Showing Copy Spool Function COPY SPOOL L90LS

28 Mobile Controls Division 01/05/ Inlet Section Showing Copy Spool Function LS PX PL L90LS

29 Mobile Controls Division 01/05/ Single Spool Valve EC Operated Showing Service Line Relief / Anti- cavitation Cartridges & Counter-pressure valve in Outlet Section L90LS

30 Mobile Controls Division 01/05/ T3 T2/MP TP PS LSP Outlet Section Showing Pressure Reducing For Pilot Supply and Counterpressure Valve L90LS Outlet Section

31 Mobile Controls Division 01/05/2015 Load sense valve LS and/or CFC Spool in neutral position L90LS

32 Mobile Controls Division 01/05/2015 Load sense valve LS and/or CFC Spool in outer position *PBAT = Pump to motorport B. Motorport A to tank. L90LS

33 Mobile Controls Division 01/05/ % FLOW (LPM) SPOOL STROKE Metering to Motor Port Versus Spool Stroke L90LS

34 Mobile Controls Division 01/05/ FLOW (LPM) DIFFERENTIAL PRESSURE ( Bar ) Performance of Individual Compensator Against Differential Pressure from Valve Inlet to Motor Port L90LS

35 Mobile Controls Division 01/05/2015 Load sense valve LS and/or CFC with pressure feedback on B-side *PBAT = Pump to motorport B. Motorport A to tank. L90LS

36 Mobile Controls Division 01/05/2015 *PBAT = Pump to motorport B. Motorport A to tank. Load sense valve LS and/or CFC with LS-logic L90LS

37 Mobile Controls Division 01/05/ Two spool valve with M10 manifold L90LS

38 Mobile Controls Division 01/05/ M10 Manifold Section L90LS

39 Mobile Controls Division 01/05/ FEATURE ADVANTAGE BENEFIT STACKABLE VALVE. FLEXIBILITY. EASIER TO INSTALL. CHEAPER TO SERVICE. MODULAR CONSTRUCTION. SIMPLIFICATION FEWER EXTERNAL COMPONENTS. RELIABILITY. EASIER TO INSTALL SYSTEM. LOAD SENSING WITH VARIABLE PUMP. SIMPLE DESIGN HIGHER MACHINE PERFORMANCE. HIGHER WORKING CAPACITY. BETTER FUEL ECONOMY. OPTIMISED PERFORMANCE. EASIER TO RETROFIT OTHER FUNCTIONS EMERGENCY STOP. EASIER TO MEET EC DIRECTIVES. EASIER TO INSTALL. LOWER OVERALL COST. IMPROVED SAFETY. IMPROVED RELIABILITY. PRESSURE COMPENSATION. SIMPLE SYSTEM DESIGN & ASSEMBLY. INDIVIDUAL MAX. SPEEDS. NO INTERFERENCE BETWEEN FUNCTIONS. FEED REDUCER EASY TO SET DIFFERENT FORCE LEVELS. EASILY INSTALLED INCREASED EFFICIENCY. SAFER OPERATION. LOWER INSTALLATION COST L90LS

40 Mobile Controls Division 01/05/ FEATUREADVANTAGEBENEFIT FORCE CONTROL IMPROVED STABILITY & SAFETY LESS WEAR & GREATER EFFICIENCY. LOWER RUNNING COSTS. MORE GENTLE MACHINE CHARACTERISTICS. PREVENTS HIGH PEAK PRESSURES. PORT RELIEF’S CAN BE SET CLOSE TO MAX. WORKING PRESSURE. LESS STRESS ON MACHINE COMPONENTS. IMPROVED RELIABILITY.. COUNTER - PRESSURE VALVES LESS RISK OF CAVITATION SIMPLY TO INSTALL. ENABLES UNLOADED LOWERING. IMPROVED MACHINE PERFORMANCE. LESS RISK OF CYLINDER OR MOTOR DAMAGE. IMPROVED FUEL ECONOMY PROVISION FOR EXTERNAL PILOT FILTER GREATER FLEXIBILITY. EASIER TO KEEP PILOT SYSTEM COMPLETELY CLEAN. IMPROVED RELIABILITY. LOWER INSTALLATION COST FAST ACTING LEAK TIGHT PORT RELIEF VALVES FUNCTION ADAPTED SPOOLS EASY TO OPTIMISE MACHINE PERFORMANCE WITH FEWER COMPONENTS IMPROVED CONTROLLABILITY, SAFETY & RELIABILITY. PILOT PRESSURE SUPPLY. SIMPLE SYSTEM ASSEMBLY. FEWER COMPONENTS LOWER INSTALLATION COST. IMPROVED RELIABILITY. L90LS


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