The packing gland not skewed, leakage accords with a requirement, inlet valve open since pressure groutingpump, emptying.
盘车轻快自如无卡涩； 填料压盖不偏斜，渗漏符合要求，入口阀打开自压灌泵、排空。
2
Problems of raise the piston groutingpump, feasible of discusses the piston groutingpump technology transformation scheme.
提出了活塞式灌浆泵存在的问题，论述了活塞式灌浆泵技术改造方案的可行性。
3
The circular tube grouting test was made by the established model of grouting slurry tube in rock mass and using piston type groutingpump commonly used in grouting engineering.