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由上海机械配件技术研究所设计、上海液压件二厂试制的34BFSo/y—H20L电磁式比例方向流量复合阀于1980年12月完成性能数据测试,性能良好。该阀由电磁式先导比例减压阀、等差溢流阀及主阀组成。能根据电信号大小比例控制液压回路中流量和方向。可应用于注塑机、压铸机、机床进给系统,液压升降等。
Designed by Shanghai Mechanical Parts Technology Institute, the 34BFSo / y-H20L electromagnetic proportional directional flow compound valve trial-manufactured by Shanghai No.2 Hydraulic Plant completed the performance data test in December 1980 with good performance. The valve by the pilot solenoid valve proportional relief valve, the main relief valve and the composition of the valve. According to the size of the electrical signal to control the hydraulic circuit flow and direction. Can be applied to injection molding machines, die-casting machines, machine feed systems, hydraulic lifting and so on.