ASCO电磁阀如何检修、维修 和维护？

清洁要求

经常保持电磁阀外部和活动部位的清洁，保护电磁阀油漆的完整。电磁阀上的灰尘用压缩空气吹扫，电磁阀上残留的油和介质用蒸汽吹扫干净。疏水阀应定期拆卸冲洗，防止堵塞。

定期润滑

电磁阀梯形螺纹、螺母及啮合部位和配合活动部位，应经常保持良好的润滑，防止锈蚀及卡死。露在外部的润滑部位，如螺纹等应注入二硫化钼润滑，既不污染灰尘，又能很好润滑；对于旋塞阀等，应定期加注润滑油，防止磨损及泄漏。

定期维护

阀体要完好，阀件应齐全、完好，螺纹、螺母应拧紧防止松动，填料压件应及时拧紧，缺失零件应及时更换。补齐。此外，电磁阀不允许敲打、放置重物或站人， 以免损坏电磁阀。

驱动装置灵活

驱动装置应外面清洁；密封良好，密封部位应严密无泄漏；传动部位应定期润滑， 放置锈蚀或卡死；确保驱动装置工作正常自如，执行操作准确无误。

电磁阀常见问题处理

在实际生产装置中，一般电磁阀的泄漏情况有以下几种情况： 阀板变形所引起的介质泄漏，呈渗流或小流量连续排放；

阀体内有杂物，关闭不严所引起的介质泄漏，往往呈小流量泄漏； 密封面操作造成密封不严所引起的介质泄漏，往往呈渗漏状泄漏；

阀杆卡死致使电磁阀无法关闭所造成的介质泄漏，这样的泄漏往往在一定时间内造成相当程度的泄漏和污染；

密封填料不严密所造成的介质泄漏，一般表现为渗漏，但量较小； 阀体有砂眼所造成的介质泄漏，一般也是表现为渗漏，量较小； 制造工艺上的问题所引起电磁阀泄漏，多为渗漏型。

当然要准确判断闸阀渗漏部位和原因，及时有效地排除故障，还应根据具体情况进行全面地分析研究，采取可靠迅速的方法排除故障，使电磁阀保持良好的技术状态。

电磁阀的维修及检查

这方面存在的问题主要有：电磁阀维修保养不及时，造成电磁阀失修渗漏或开关不灵；电磁阀未定期检修试压，甚至使用多年未进行清洗、试压和技术鉴定，致使杂物沉积于阀内，关闭不严，严重渗油、窜油；电磁阀检修后未关闭，或者拆除电磁阀后未封堵管口；电磁阀尘兰垫片使用了不耐油不耐压材料等。因此，要加强对电磁阀的检查，力争做到防患于未然。

电磁阀月检查的主要内容：

阀杆动密封及法兰垫片静密封处是否渗漏； 启闭状态是否正常；

阀体有无损伤及渗漏等异常现象；

将平时常开或常闭的电磁阀转动 1~2 圈或做 1

How to inspect, repair, and maintain ASCO solenoid valves?

Cleaning requirements

Regularly keep the external and moving parts of the solenoid valve clean to protect the integrity of the solenoid valve paint. The dust on the solenoid valve is blown away with compressed air, and the remaining oil and medium on the solenoid valve are blown away with steam. The drain valve should be regularly disassembled and flushed to prevent blockage.

Regular lubrication

The trapezoidal threads, nuts, engagement parts, and matching moving parts of the solenoid valve should be regularly lubricated to prevent rust and jamming. Exposed lubricating parts, such as threads, should be lubricated with molybdenum disulfide, which not only does not pollute dust but also provides good lubrication; For plug valves, lubricating oil should be added regularly to prevent wear and leakage.

Regular maintenance

The valve body should be intact, and the valve components should be complete and intact. The threads and nuts should be tightened to prevent loosening. The packing pressure components should be tightened in a timely manner, and missing parts should be replaced in a timely manner. Complete. In addition, it is not allowed to knock, place heavy objects, or stand on the solenoid valve to avoid damaging it.

Flexible driving device

The driving device should be clean on the outside; Sealed well, the sealing area should be tight without leakage; The transmission parts should be lubricated regularly to prevent rusting or jamming; Ensure that the driving device operates smoothly and accurately without errors.

Handling common problems with solenoid valves

In actual production equipment, the leakage of electromagnetic valves generally includes the following situations: medium leakage caused by valve plate deformation, which is in the form of seepage or small flow continuous discharge;

There are debris inside the valve body, and the medium leakage caused by poor closure often results in small flow leakage; The leakage of media caused by inadequate sealing due to sealing surface operation often results in leakage like leakage;

The medium leakage caused by the stuck valve stem causing the electromagnetic valve to be unable to close often results in a considerable degree of leakage and pollution within a certain period of time;

The medium leakage caused by loose sealing packing is generally manifested as leakage, but the amount is relatively small; The medium leakage caused by sand holes in the valve body is generally manifested as leakage, with a small amount; The electromagnetic valve leakage caused by manufacturing process problems is mostly leakage type.

Of course, it is necessary to accurately determine the location and cause of gate valve leakage, timely and effectively eliminate faults, and conduct comprehensive analysis and research based on specific situations, adopting reliable and rapid methods to eliminate faults, so as to maintain the electromagnetic valve in good technical condition.

Maintenance and inspection of solenoid valves

The main problems in this regard include: untimely maintenance and repair of solenoid valves, resulting in solenoid valve disrepair, leakage, or ineffective opening and closing; The electromagnetic valve was not regularly maintained and pressure tested, and even used for many years without cleaning, pressure testing, and technical evaluation, resulting in debris settling inside the valve, not closing tightly, and serious oil leakage and channeling; Failure to close the solenoid valve after maintenance, or failure to seal the pipe opening after removing the solenoid valve; The electromagnetic valve dust gasket uses materials that are not resistant to oil or pressure. Therefore, it is necessary to strengthen the inspection of solenoid valves and strive to prevent problems before they occur.