As altitude increases, atmospheric pressure decreases, thus exerting less "push" on the water entering the pump suction.
当海拔高度增加，大气压力减少，从而减少了作用于进入水泵的水的压力。
How it works: the piston moves from left to right, form a negative pressure pump cylinder, then the suction tank fluid through the valve into the pump cylinder.
工作原理：活塞自左向右移动时，泵缸内形成负压，则贮槽内液体经吸入阀进入泵缸内。
Pump up for suction then disconnect the bulb, pressure will stay.
为吸泵然后断开灯泡，压力将继续。
The article mainly had a research on the pressure rule inside the hydraulic cylinders when the mud pump has been assembled with air chamber on the suction pipe and stack pipe.
但国内还没有对安装吸入空气包后液缸内吸入压力的变化规律作出理论上的分析。
It's essential, for the suction of pump may reduce the pressure, which could boil the condensate water flowing pump impeller after pumping.
这是很必要的，因为泵的吸口可能降低压力，使得高温冷凝水被抽吸流过泵叶轮时发生沸腾。
Allows a high degree of vacuum suction on the Hs is p1 pressure pump at the entrance to allow the greatest vacuum.
允许吸上真空高度Hs是指泵入口处压力p 1可允许达到的最大真空度。
Considering the energy consumption of the HP-pump for SWRO, a reasonable type of high pressure pump was selected, and a new structure of the axial suction segment multistage pump was proposed.
结合反渗透海水淡化高压泵的能耗状况，合理选择了万吨级反渗透海水淡化高压泵的泵型，提出了一种轴向吸入节段式高压多级泵的新型结构型式。
Pump could not suction water. The fingers of pressure gauge and vacuum gauge swing acutely.
水泵不吸水，压力表及真空表的指针在剧烈摆动。
This seawater hydraulic pump has a small size, a light weight and good suction characteristics as well as high output pressure. It can meet the requirements of application in some special fields.
该海水泵体积小、重量轻、自吸性能好、输出压力高，可以满足舰船特定场合的应用需求。
The utility model discloses a negative pressure generator used by a water pump suction pipe without a bottom valve.
本实用新型公开了一种无底阀水泵吸水管用负压发生器。
The utility model discloses a negative pressure generator used by a water pump suction pipe without a bottom valve.
本实用新型公开了一种无底阀水泵吸水管用负压发生器。
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