shaft-packing leakage

Emergency Treatment of Vessel Tail Shaft Oil Leakage at Sea

船舶艉轴漏油事故海上应急

The machine imports, pumps, pump shell structure strong are the hydrostatic test, the mechanical shaft seal, stop leakage effect is good.

整机进口，泵浦结构坚固，泵壳皆经水压试验，采用机械轴封，止漏效果好。

Steam Leakage Calculation of Shaft Gland of High Back Pressure Steam Turbine Units

高背压机组轴封漏汽量的计算

This structure with the abolition of the traditional centrifugal rotary shaft sealing device it can do no leakage.

这种结构取消了传统离心泵具有的旋转轴密封装置，故能做到完全无泄漏。

The ball piston pump takes ceramic ball of high accuracy as its piston and allocates water by its shaft. With wear-resisting plastic covering on cylinder surface, it establishes seel surface by rigidity of piston and elastoplasticity of plastic, hence greatly reduces flow leakage.

球塞泵以高精度陶瓷球为活塞，采用轴配流，其缸孔内壁喷涂有一层耐磨工程塑料，利用其弹塑性和球塞的刚性建立起密封面，大大降低泄漏流量。