宝硕直动式电磁阀文档,BUSCJOST直动式电磁阀技术介绍
直动式电磁阀，通电时，电磁线圈产生电磁力把关闭件从阀座上提起，
阀门打开；断电时，电磁力消失，弹簧把关闭件压在阀座上，阀门关闭。
它是种直动和导式相结合的原理，当入口与出口没有压差时，
通电后，电磁力直接把导小阀和主阀关闭件依次向上提起，阀门打开。
The valves of this series, including the connection size DN 25
(G 1), are according to Art. 3 § 3 of the Pressure Equipment Directive
(PED) 97/23/EG. This means interpretation and production are in
accordance to engineers practice wellknown in the member countries
当入口与出口达到启动压差时，通电后，电磁力导小阀，主阀下腔压力上升，
上腔压力下降，从而利用压差把主阀向上推开；断电时，
导阀利用弹簧力或介质压力推动关闭件，向下移动，使阀门关闭。

宝硕直动式电磁阀文档,BUSCJOST直动式电磁阀技术介绍
Note to Electromagnetic Compatibility Guideline (EEC):
The valves shall be provided with an electrical circuit which ensures
the limits of the harmonised standards EN 61000-6-3 and
EN 61000-6-1 are observed, and hence the requirements of the
Electromagnetic Compatibility Guideline (2004/108/EG) satisfield.
特点：1.在真空、负压、零压时能正常工作，但通径般不超过25mm。
2.在零压差或真空、高压时亦可动作，但功率较大，要求必须水平安装。

For valves > DN 25 (G 1) Art. 3 § (1) .4 applies.
The basic requirements of the Enclosure I of the PED must be fulfilled.
The CE-sign at the valve includes the PED. A certificate of conformity of
this directive will be available on request.