This paper analyses the wear mechanism of heatingvalve, approahes simple repair technology and material of heatingvalve.
分析了供热阀门的磨损机理，探讨了简单修复供热阀门的工艺和材料。
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It used the PCF8583 as timers to realize the function of prearranging the heatingvalve 's on-off time in the house heating expenses system composed of 89c52.
The control execution unit set comprises a controllable heatingvalve set and a controllable refrigerating valve set and can realize controllable operation of heating and refrigerating;