農用(yong)(yong)水(shui)泵(beng)(beng)水(shui)泵(beng)(beng)要因地(di)(di)制宜選(xuan)購水(shui)泵(beng)(beng)。常用(yong)(yong)的農用(yong)(yong)水(shui)泵(beng)(beng)有3種類型，即(ji)離(li)心泵(beng)(beng)、軸(zhou)流泵(beng)(beng)和(he)(he)混(hun)流泵(beng)(beng)。離(li)心泵(beng)(beng)揚(yang)程較高(gao)，但出水(shui)量(liang)不大，適用(yong)(yong)于(yu)山區(qu)和(he)(he)井灌區(qu)；軸(zhou)流泵(beng)(beng)出水(shui)量(liang)較大，但揚(yang)程不太高(gao)，適用(yong)(yong)于(yu)平(ping)(ping)原地(di)(di)區(qu)使用(yong)(yong)；混(hun)流泵(beng)(beng)的出水(shui)量(liang)和(he)(he)揚(yang)程介(jie)于(yu)離(li)心泵(beng)(beng)和(he)(he)軸(zhou)流泵(beng)(beng)之間，適用(yong)(yong)于(yu)平(ping)(ping)原和(he)(he)丘陵地(di)(di)區(qu)使用(yong)(yong)。用(yong)(yong)戶(hu)要根據(ju)本(ben)地(di)(di)的地(di)(di)況、水(shui)源(yuan)和(he)(he)提水(shui)高(gao)度進行選(xuan)購。

要(yao)適當超標選(xuan)水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)。確定(ding)水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)類型(xing)后，要(yao)考慮其經濟性能，特別(bie)要(yao)注意水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)的(de)(de)揚(yang)程(cheng)(cheng)和流(liu)(liu)量及其配(pei)套(tao)動(dong)(dong)力(li)的(de)(de)選(xuan)擇。須注意，水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)標牌(pai)上(shang)(shang)注明的(de)(de)揚(yang)程(cheng)(cheng)(總(zong)揚(yang)程(cheng)(cheng))與使(shi)(shi)(shi)用(yong)時的(de)(de)出水(shui)(shui)(shui)(shui)(shui)揚(yang)程(cheng)(cheng)(實際揚(yang)程(cheng)(cheng))是(shi)有差別(bie)的(de)(de)，這是(shi)由于(yu)水(shui)(shui)(shui)(shui)(shui)流(liu)(liu)通過輸(shu)水(shui)(shui)(shui)(shui)(shui)管和管路附近時會有一(yi)些的(de)(de)阻力(li)損失(shi)。所以，實際揚(yang)程(cheng)(cheng)一(yi)般要(yao)比總(zong)揚(yang)程(cheng)(cheng)低10%—20%，出水(shui)(shui)(shui)(shui)(shui)量也相應減少。因此，實際使(shi)(shi)(shi)用(yong)時，只能按標牌(pai)所注揚(yang)程(cheng)(cheng)和流(liu)(liu)量的(de)(de)80%～90%估算(suan)，水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)配(pei)套(tao)動(dong)(dong)力(li)的(de)(de)選(xuan)擇，可(ke)按標牌(pai)上(shang)(shang)注明的(de)(de)功(gong)率(lv)選(xuan)擇，為(wei)(wei)了使(shi)(shi)(shi)水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)啟(qi)動(dong)(dong)迅速和使(shi)(shi)(shi)用(yong)，動(dong)(dong)力(li)機(ji)的(de)(de)功(gong)率(lv)也可(ke)略大于(yu)水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)所需功(gong)率(lv)，一(yi)般高(gao)出10%左右為(wei)(wei)宜；如果已有動(dong)(dong)力(li)，選(xuan)購水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)時，則可(ke)按動(dong)(dong)力(li)機(ji)的(de)(de)功(gong)率(lv)選(xuan)購與之相配(pei)套(tao)的(de)(de)水(shui)(shui)(shui)(shui)(shui)泵(beng)(beng)。

要嚴格(ge)手續(xu)購水泵。選購時(shi)要審驗“三證(zheng)(zheng)(zheng)”，即農業機械推廣(guang)許(xu)可證(zheng)(zheng)(zheng)、生產許(xu)可證(zheng)(zheng)(zheng)和產品檢驗合格(ge)證(zheng)(zheng)(zheng)，只有三證(zheng)(zheng)(zheng)齊全(quan)方能避(bi)免(mian)購置淘(tao)汰(tai)產品及(ji)劣質產品。