首页>
外国专利>
Hose membrane process pump has controlling element that switches OFF head pump and switches ON reserve pump head
Hose membrane process pump has controlling element that switches OFF head pump and switches ON reserve pump head
展开▼
机译:软管膜工艺泵具有控制元件,该控制元件可关闭扬程泵并打开备用泵扬程
展开▼
页面导航
摘要
著录项
相似文献
摘要
A housing (1) has displacement chamber with tubular diaphragm (2). A pump head is arranged in opposite to conveying direction acting non-return valves (3,4) and shut-off valves (5). An annular space (6) filled with liquid is formed between tubular diaphragm and wall of the housing and is contacted with a pressure chamber (7) via secondary hydraulic chamber (8). An actuator alternately sucks liquid from annular space into pressure chamber and pressurizes liquid from pressure chamber into annular space. A controlling element switches OFF the head pump and switches ON a reserve pump head.
展开▼