Strengthened corrosion monitoring and testing, timely maintenance and minimumtemperature and pressure fluctuations proved to be the effective measures for extending the service life of linings.
加强腐蚀监、检测，及时进行维修和减少温度、压力的波动是延长衬里寿命的有效措施。
2
For all elements other than flow elements or control valves, the true minimum, normal and maximum pressure and temperature ranges over which the element is expected to be effective are shown.