一、最低调整压力偏高的原因及改进在中低压液压元件的性能指标中规定,中压溢流阀的压力调整范围为3～63公斤/厘米~2,其最低调整压力为3公斤/厘米~2以下,长期来生产实践表明:该阀的最低调整压力一般都在3～4公斤/厘米~2范围内,很难达到3公斤/厘米~2以下。为此我们对原压力控制阀的结构参数进行了分析和试验,找到了调整压力偏高的一些原因,并以此对该阀 First, the reasons for low maximum adjustment pressure and improve the performance indicators in the low pressure hydraulic components, pressure relief valve pressure adjustment range of 3 to 63 kg / cm ~ 2, the minimum adjustment pressure of 3 kg / cm ~ 2, the long-term production practice shows that: the minimum adjustment pressure of the valve are generally in the range of 3 ~ 4 kg / cm ~ 2, it is difficult to reach 3 kg / cm ~ 2 or less. To this end, we analyzed and tested the structural parameters of the original pressure control valve to find some reasons to adjust the high pressure, and thus the valve