The built-in filter of a solenoid valve can be cleaned without dismantling its sleeve, but simply unscrewing its nut to pull out the plastic filtering plate.
本电磁阀自带的过滤器无需拆卸管子即可非常方便的清洗，只需用手拧下螺帽，拔除塑料滤片即可清洗。
2
The circular boundary between the reduction sleeve 2 and the filter body 3 are welded.
过渡套2与过滤体3之间外圆分界线焊接连接。
3
A shunt active power filter is applied in the fisher boat in order to suppress the harmonic produced by the sleeve-fish troll machine. The design scheme of the shuntactive power filter is provided.