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压力表用于液动和气动中的目的是:1.指示运转压力,尤其是由操作者选择运转压力时,更需要有压力表;2.对系统中出现的不正常压力进行指示,使操作者有所警觉。压力表也用于收集发展液动和气动设备所需的数据。液动设备或液控设备,为了能正常运转,存其系统中的压力,或压力的变化必须是正确的。适当的压力表就是用来指示这个压力并避免误操作的。压力表的刻度也可以表示与压力成比例的量,例如液压缸的总载荷。波登管式的指示表用以计量从30时汞柱真空至150,000磅/时~2的压力。这种表的主
The purpose of the pressure gauge for use in hydraulics and pneumatic applications is to: 1. Indicate operating pressure, especially when operating pressure is selected by the operator, and more in need of a pressure gauge; 2. Indicate abnormal pressure appearing in the system, Be alert. Pressure gauges are also used to collect the data needed to develop liquid and pneumatic equipment. Hydraulic or hydraulic control equipment, in order to work properly, save the pressure in the system, or pressure changes must be correct. The appropriate pressure gauge is used to indicate this pressure and to avoid misuse. The scale of the gauge can also represent an amount proportional to the pressure, such as the total cylinder load. Bourdon tube type indicator to measure the vacuum from 30 h of mercury to 150,000 pounds / h ~ 2 pressure. The main form of this table