宝德125320电磁阀

常闭、常开、或可持续通电 。要是开启的时间短或开和关的时间不多时，则选常闭型。 但是有些用于安全保护的工况，如炉、窑火焰监测，则不能选常开的，应选可*通电型。动作可靠性      严格地来说此项试验尚未正式列入我国电磁阀专业标准，为确保质量应选正规厂家的产品。有些场合动作次数并不多，但对可靠性要求却很高，如消防、紧急保护等，切不可掉以轻心。特别重要的，还应采取两只连用双保险。

宝德125320电磁阀

Normally closed, normally open, or sustainable. If the time of opening is short or the time of opening and closing time is short, then choose often closed type. However, some of the conditions used for safety protection, such as furnace and kiln fire monitoring, cannot be selected normally. In strict terms, the test has not been officially listed as the standard of China's electromagnetic valve, so as to ensure the quality of the products. There are not many occasions, but high reliability requirements, such as fire protection, emergency protection, etc., must not be taken lightly. In particular, two double-insurance policies should be adopted.

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