求翻译：本除污器用于瑞光热电一期隔压换热站一、二级网供热系统一次网中时，输送介质为热水，一级网设计压力2.5MPa,设计温度140℃,最高耐温150℃；二级网设计压力1.6MPa,设计温度70℃，最高耐温100℃是什么意思？

Dirt separator for ruiguang heat insulation pressure heat exchange station when the heating system in a network of primary and secondary network, conveying medium can be water, 2.5MPa level network design pressure, design temperature of 140 ° c, highest temperature 150 ℃; 1.6MPa two-level network design pressure, design temperature 70 ° c, highest temperature of 100 ° c