螺纹插装阀介绍(之一)——溢流阀(续)

Introduce of Screw-in Cartridge Valves——Relief Valve(Continued)

4压力保险阀 压力保险阀是一种自锁型溢流阀.之所以称为压力保险阀,因为它如同电路中的保险丝,一旦打开,就维持在开启状态,将系统几乎完全卸压(参见卸荷时的流量压力曲线,图14右下),而不是保持在开启压力上.即滞回极大,差不多100%.

According to his experience of use screw-in cartridge valve for more than ten years, the writer summarized the most important points to pay attention to use screw-in cartridge relief valves. Different type of screw-in cartridge relief valve were introduced.