论文部分内容阅读
压力表校验器使用一段时间后 ,往往出现造压困难、针型阀泄漏、泄压缓慢等问题。拆卸清洗时往往发现造压桶或柱塞泵内壁划伤、传压管路堵塞、针型阀阀孔内有杂质淤积等情况。ＬＹＬ型校验器的工作原理是 ,手动方式从油杯吸取介质产生压力 ,精密压力表与被检压力表分别装在管路?
Pressure gauge validator used for a period of time, often appear difficult pressure, needle valve leakage, slow pressure relief and other issues. Disassembly and cleaning are often found pressure barrel or piston pump wall scratches, pressure pipeline blocked, needle valve hole impurities siltation and so on. The working principle of LYL type calibrator is that the pressure is drawn manually from the oil cup, and the precision pressure gauge and the pressure gauge under test are respectively installed in the pipeline?