Low pump discharge pressure during pump operation shall sound an alarm and be indicated on the HMI.
低泵泵运行期间的排放压力应发出警报声，并在HMI上显示。
Invalid pump operation is often disturbance caused by sound level measurement and indicator diagram for diagnosis.
无效的泵运转常是气干扰造成的，可通过声波液面测量和示功图进行诊断。
Convert system with three-way control totwo-way, and modulate pump operation instead of constant full volume waterflow.
将系统从三向控制转换成双向，并调整水泵运作，而不是一成不变的使用最大量的水流。
If the first gear pump operation, or long-term idle after use, preferably in small load or no-load circumstances Xianpao One hour.
齿轮泵若是第一次运行，或长期闲置后再使用，最好在空载或小负荷情况下先跑合一小时左右。
The energy concept ensures an optimal use of renewable energy using the sun, both for cooling in summer and to improve pump operation in the winter.
这套能源概念保证了太阳，这一可再生能源的最佳利用方法，既可以在夏天制冷，也能在冬天提高泵的运作效率。
The control scheme for multi pump operation is thus improved, which changes pump frequency and controls pump operation according to water consumption.
改进了多台水泵的控制方式，即根据系统用水量改变水泵频率从而控制水泵的运行情况。
Least square method of polynomial or the method based on the given function are used to fit pump characteristic curve in pump selection or operation.
在水泵的选型或运行中，通常采用多项式的最小二乘法或根据假设的函数关系来拟合水泵性能曲线。
Analyses and confirms the practicability of variable water flow operation for the primary pump system, and illustrates its obvious energy saving effects.
分析了一级泵系统实现变流量运行的可行性，并通过实例说明了其显著的节能效果。
LFSP series pump water curtain spray chamber and exhaust pipes in addition to any other system components, so the equipment operation safe and stable performance.
LFSP系列无泵水幕喷漆室除排风机与管道之外没有其他任何系统部件，因此设备运行性能安全稳定。
Mechanical seal with tungsten carbide hard wear-resistant, with durable, wear-resistant characteristics, can pump more than 8000 hours of continuous operation safe.
机械密封采用硬质耐磨碳化钨，具有耐用、耐磨等特点，可以使泵安全连续运行8000小时以上。
The pump has high efficiency, energy-saving significantly, smooth operation, reliable performance, easy maintenance and so on.
该泵具有效率高、节能显著、运行平稳、性能可靠、维修方便等优点。
The waterfeeding recirculation header pipe will be set between water-feeding pump and deaeration water tank to fulfill requirements for start-up and low load operation of waterfeeding pump.
在给水泵与除氧水箱之间，设置给水再循环母管，以满足给水泵在启动及低负荷运行时的需要。
Operation test of emergency switching-off device for oil pump and ventilator (bilge pump) in engine room.
机舱风、油（舱底泵）应急切断装置操作试验。
Analyses the effects of variable flow operation of primary pump water systems based on the temperature difference control method on the operation of air conditioning systems.
分析了一级泵水系统采用温差控制法实现变流量运行对空调系统运行的影响。
Check valve should be installed in the bottom of suction pipe of pump to make sure operation is prompt.
泵吸入管路底部应安装截止止回阀，确保其操作灵活。
Analyse principle of operation, technology feature of single-phase alternating current induced liquid metal electromagnetic pump wave soldering machine.
重点分析单相交流感应式液态金属电磁泵波峰焊接设备技术的工作原理、技术特征；
Because of having high efficiency, energy saving, little effect on environment and steady operation, water source heat pump and ground source heat pump are promising in Guiyang.
水源热泵和地源热泵由于具有高效节能、对环境影响小、运行稳定等特点，在贵阳地区很有发展前途。
Petrochemical equipment is often 24-hour continuous operation, when the work pressure pump should be made much lower than the rated pressure, and speed work should also be lower than the rated speed.
石油化工设备常常是24小时连续运转，这时泵的工作压力应该取得比额定压力低得多，且工作转速也应该低于额定转速。
The se water pump motor is unable to meet the operation requirement when its load current adjacent to its rated current. Please select another one with a large capacity.
海水泵电动机当其负载电流接近额定电流时不能满足运行要求，请选择另 一台容量大的电动机。
The se water pump motor is unable to meet the operation requirement when its load current adjacent to its rated current. Please select another one with a large capacity.
海水泵电动机当其负载电流接近额定电流时不能满足运行要求，请选择另一台容量大的电动机。
In nearly all instances, pump failure is the result of improper installation or operation rather than normal wear.
几乎在所有一切情况下，不正确安装和运行比起磨损更能引起水泵失效。
If the liquid contains gas or air the pump can be modified with either internal or external gas removal construction which stabilizes the operation.
如果输送液体含有气体，该系列的泵机可内置或外置排气装置，以保证输送稳定。
Sealing performance and operating life of the fracturing pump directly influence quality of the acidizing operation, and bad seal will result in great deal of maintenance work.
压裂泵柱塞密封性能好坏与使用寿命的长短直接影响压裂酸化作业的正常实施，密封不良将带来很大的维护工作量。
For the case of operation of single pump-set, the model of water requirement forecast is given.
对于泵站单独运行的情况，给出了用水量的预报模型。
When the total cycle pump gear shift operation, the flow of the slip road ratio unchanged.
当总循环泵变速运行时，各个支路的流量分配比例保持不变。
Air induced by entrained-vortex occurring in the pump sump can be absorbed into the pump, which can influence the operation stability of pump and reduce the pump performance.
水泵吸水池中可能会产生空气吸入涡，这些涡能够将空气带入水泵，影响水泵的运行稳定性，造成水泵的性能下降。
Adjustable impeller and the clearance between the boards to ensure efficient operation of the pump.
可调节叶轮与护板之间的间隙，保证泵的高效运行。
This paper analyses the cause of reform of cerate pump and its operation condition after the reconstruction, and the economy character is analysed.
分析了蜡膏泵改造的原因及改造后的运行情况，并对经济性进行了计算分析。
This paper analyses the cause of reform of cerate pump and its operation condition after the reconstruction, and the economy character is analysed.
分析了蜡膏泵改造的原因及改造后的运行情况，并对经济性进行了计算分析。
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