Fig. 1 3 circuits controlling load movement (a) Double non-return valve (b) Pressure relief valve (c) Counterbalance valve
Fig. 2 High capacity counterbalance valve
Fig. 3 Counter Balance Valve
Fig. 4 Schematic diagram of the poppet used in counterbalance valve
Fig. 5 Hydraulic circuit of counter balance valve with load simulator
Fig. 6 Hydraulic components arrangement
Fig. 7 Control Valves (a) Double non-return valve (b) Counterbalance valve
Fig. 8 Pressure at cylinder rod side with load
Fig. 9 Pressure at cylinder rod side without load
Fig. 10 Pressure at cylinder rod side in case of using DNRV
Fig. 12 Signal to 6/3 direction control valve and rod displacement in case with load
Fig. 13 Pressure at cylinder head side with load
Fig. 14 Pressure at rod side of cylinder with load in case of DNRV
Fig. 15 Signal to 6/3 direction control valve
Fig. 16 Pressure at head side of cylinder
Fig. 17 Pressure at rod side of cylinder without load
Fig. 11 AMESim Model of counterbalance valve
Table 1 Cylinder rod side static pressures for two loads
Table 2 System Parameter
References
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