目前国内水表的电控阀门主要有球阀、陶瓷阀和膜片阀.球阀因要求的驱动力矩大,使用中因结垢或磨损,很容易出现漏水、开关失灵等问题,国内 智能水表采用此类阀门的较多,在使用中出现的问题最多.陶瓷阀的使用寿命长、开关可靠性高、压损小,使用中不易结垢,因是专利产品,国内智能水表采用此阀门的制造商很少.膜片阀因成本高制造商使用的不多.智能水表阀门也是在使用中的一个至关重要的性能指标.

At present, there are mainly ball valves, ceramic valves and diaphragm valves in domestic water meters. Ball valves are prone to water leakage and switch failure due to large driving moment and scaling or wear in use. There are more such valves used in domestic intelligent water meters, and most problems occur in use. Ceramic valves have long service life and switch. High reliability, low pressure loss, easy to scale in use, because it is a proprietary product, few domestic manufacturers use this valve for intelligent water meters. Diaphragm valves are seldom used by manufacturers because of high cost. Smart water meter valves are also a vital performance index in use.