Tapvalve on the common market, there are three: stainless steel ball valve, ceramic valve core and valve shaft roll style.
市场上常见的水龙头阀芯有三种：不锈钢球阀，陶瓷片阀芯和轴滚式阀芯。
2
The results show that the cracking of the tapvalve is brittle crack, which is due to overheat to cause the formation of defects, such as coarse grains, Widmanstatten structure and porosity.
结果表明，水龙头阀体开裂是由于存在过热造成的晶粒粗大、魏氏组织、铸造疏松等缺陷引起的脆性开裂。
3
The control system sends the tap water to the solar energy through control valve and controller to achieving the automatic control.