["
Thread Content
user
["求助，求助海友"
"一台75W的塑料磁力泵用水试运行，出口阀全开流量最大、压力最低时可以启动打出水。想慢慢关紧出口阀调高压力时，泵就不出水了而且声音变小。于是停泵关出口阀再启动后慢慢打开出口阀。泵依然打不出水。只有全开出口阀才可以启动。检查了磁囊并没有脱磁，叶轮口环、止推片等都完好。管路也无空气。望有经验的海友指点指点。鄙人不胜感激！"
**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections
Submit Request — Free ConsultationThis is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.