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蠕動泵的種類看似種類繁多，實際應用中并沒有我們想象的那么復雜，要選擇一款適合的蠕動泵也不是難事。 Peristaltic pump seems phyletic and various, the kinds of practice is not as complicated as we thought, to choose a suitable peristaltic pump would not be difficult. 首先確定防護等級，有些特殊的場合要求，防爆，防水，防塵等，這時候首先要考慮的是蠕動泵本身有沒有達到要求的防護等級，防爆蠕動泵中，氣動驅(qū)動的蠕動泵是防爆等級最高的，其次是防爆電機驅(qū)動，防爆電機也是有防爆等級的，應根據(jù)自己的實際情況選擇。IP防護等級也要根據(jù)自己的實際情況選擇，蠕動泵一般的防護等級為IP31。 First determine the degree of protection, and some special occasions, explosion-proof, waterproof, dustproof and so on, then the first thing to consider is the peristaltic pump itself have reached the requirements of the protection grade, explosion-proof peristaltic pump, pneumatic driven peristaltic pump is the highest explosion-proof grade, the second is the explosion-proof motor driver, also have explosive-proof grade explosion-proof motor, should choose according to their own actual situation. IP protection grade also want to choose according to their own actual situation, general protection grade of peristaltic pump is IP31. 其次確定流量范圍，由此確定泵頭的型號，以及驅(qū)動器的轉(zhuǎn)速。在確定流量范圍的時候還要考慮到傳輸?shù)囊后w有沒有粘度和腐蝕性，蠕動泵傳輸有粘度的流體流量會有一定的衰減，所以在有粘度的情況下要盡量放寬流量的范圍，以免達不到流量要求。如果流體具有腐蝕性，就要考慮使用耐腐蝕的泵管。 Second flow range is determined, which determine the type of pump head, and the speed of the drive. In determining the flow range even when considering the transmission of liquid viscosity and corrosive, peristaltic pump has a viscosity fluid flow will have certain attenuation, so in a case with viscosity try to ease traffic in the area, so as to avoid can not meet the traffic demand. If the fluid is corrosive, consider the use of corrosion resistant pump pipe. 最后確定驅(qū)動器的種類，確定驅(qū)動器種類有兩點需要考慮的因素： Determine the final drive, the kinds of drive types there are two factors to consider: 第一，精度要求，在蠕動泵常用的電機中，步進電機，直流電機，交流電機，其中步進電機的精度最高，成本也最高。如果對精度沒有要求，可以考慮使用直流電機，節(jié)約成本。但是如果對精度有要求，建議使用步進電機。但是并不是所有的步進電機控制精度就一定高，主要看廠家的控制方式了，具體請參看我司文檔“如何提高蠕動泵的灌裝精度”，納通蠕動泵采用脈動和角度相結(jié)合的控制方式，重復精度可以達到±0.3%。尤其在小流量傳輸中優(yōu)勢比較明顯。