LS负载传感补偿阀.pptVIP

When partial pump flow is used for individual functions At high intensity usage To create simple system solutions when a number of functions with different flow rates is demanded When system layout is spread out At simultanious operation of functions Power control and energy conservation Reduce energy losses at idling and transportation Avoid to mix light and heavy loads from the same pump. Avoid to mix large and small flow demands from the same fixed pump. Never control max flow with line mounted restrictors. 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. Avoid to limit valve work port pressure with the chock valves, use the build in individual work port feed reducer. Make sure that the cylinders are correctly connected to the valve, the valve is normally adapted to the cylinder ratio. Load sense valve LS and/or CFC Spool in outer position *PBAT = Pump to motorport B. Motorport A to tank. L90LS 25 50 75 100 0 20 40 60 80 100% FLOW (LPM) SPOOL STROKE Metering to Motor Port Versus Spool Stroke L90LS 20 40 60 80 100 0 0 100 200 300 FLOW (LPM) DIFFERENTIAL PRESSURE ( Bar ) Performance of Individual Compensator Against Differential Pressure from Valve Inlet to Motor Port L90LS Load sense valve LS and/or CFC with pressure feedback on B-side *PBAT = Pump to motorport B. Motorport A to tank. L90LS *PBAT = Pump to motorport B. Motorport A to tank. Load sense valve LS and/or CFC with LS-logic L90LS T L.S. P PS T2 L.S.P. P2 T3 TP A B A B Two spool valve with M10 manifold L90LS M10 Manifold Section L90LS 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.