First, only need to pump or solution, requires self-priming capability, and the flow and output pressure requirements.
Note: pumping working medium is water, non-oily liquid solution (can not contain solid particles, etc.), self-priming function, you can choose the following pump :
1, the flow requirements (about 4 ~ 20 l / min), the pressure is not demanding (about 1 to 3 kg), mainly used for water recycling, water sampling, upgrading, etc., require less noise, long life, high self- Cheng, etc., the optional BSP, CSP and other series;
2, the flow is not demanding (about 1 to 5 liters / minute), but the pressure is large (about 2 to 11 kg), mainly for spray, pressurization, high lift, you can choose ASP, HSP and other series;
3, the required volume as small as possible, small flow requirements (about 0.1 to 3 liters / minute), optional PHW, ASP and other series.
Second, you need pumping or gas, value the volume, noise, continuous use and other properties
Description: Requires water and gas dual-use, can be long-term dry turn, do not damage the pump; 24 hours of continuous operation; particularly small size, low noise, but the flow, pressure less demanding.
1, with a mini pump or vacuum pump, but sometimes there will be liquid water into the pump chamber.
2, require micro-pump both pumping and pumping.
3, with a miniature pump, but sometimes there may be no pumping pump, in the "dry turn" state.
Some traditional pumps fear "dry turn", "dry turn" can even damage the pump. The PHW series of products is essentially a composite function pump, which integrates the function of vacuum pumps and pumps, some people call it "vacuum pump." So, in the absence of water, it will be evacuated, and when it has water it will pump it. Whether it is pumping or pumping state, belong to the normal work category, it does not matter "dry turn" damage.
4, the main pump with a micro-pump, but do not want to manually increase by pumping water before the "diversion" (some pumps in the work before the need to manually add some "diversion", so that the pump can pump up the water down, or the pump can not pump water or even Damage), that is, I hope the pump has "self-absorption" function. At this point, the strength of the PHW series is that when it is not in contact with water, it is evacuated, pumped up by air pressure after a vacuum is formed, and then pumped.
Zhoushan Batten Machinery Technology Co., Ltd. , https://www.battenscrew.com