農用(yong)(yong)(yong)水(shui)(shui)(shui)泵(beng)(beng)水(shui)(shui)(shui)泵(beng)(beng)要(yao)因(yin)地(di)制宜選購水(shui)(shui)(shui)泵(beng)(beng)。常(chang)用(yong)(yong)(yong)的(de)(de)農用(yong)(yong)(yong)水(shui)(shui)(shui)泵(beng)(beng)有3種類型(xing)，即離(li)心(xin)(xin)泵(beng)(beng)、軸流(liu)(liu)(liu)泵(beng)(beng)和(he)混(hun)(hun)流(liu)(liu)(liu)泵(beng)(beng)。離(li)心(xin)(xin)泵(beng)(beng)揚程(cheng)(cheng)較高(gao)，但出(chu)水(shui)(shui)(shui)量(liang)不大(da)，適用(yong)(yong)(yong)于山區(qu)和(he)井灌區(qu)；軸流(liu)(liu)(liu)泵(beng)(beng)出(chu)水(shui)(shui)(shui)量(liang)較大(da)，但揚程(cheng)(cheng)不太高(gao)，適用(yong)(yong)(yong)于平原(yuan)地(di)區(qu)使用(yong)(yong)(yong)；混(hun)(hun)流(liu)(liu)(liu)泵(beng)(beng)的(de)(de)出(chu)水(shui)(shui)(shui)量(liang)和(he)揚程(cheng)(cheng)介于離(li)心(xin)(xin)泵(beng)(beng)和(he)軸流(liu)(liu)(liu)泵(beng)(beng)之間，適用(yong)(yong)(yong)于平原(yuan)和(he)丘陵地(di)區(qu)使用(yong)(yong)(yong)。用(yong)(yong)(yong)戶要(yao)根據本地(di)的(de)(de)地(di)況、水(shui)(shui)(shui)源和(he)提水(shui)(shui)(shui)高(gao)度進行(xing)選購。

要適當超標選水(shui)(shui)泵(beng)(beng)(beng)。確定(ding)水(shui)(shui)泵(beng)(beng)(beng)類型后，要考慮(lv)其經濟性能(neng)，特別要注(zhu)(zhu)意(yi)水(shui)(shui)泵(beng)(beng)(beng)的(de)揚(yang)(yang)程(cheng)(cheng)和(he)流量及其配(pei)(pei)套(tao)動(dong)(dong)力(li)(li)的(de)選擇(ze)。須注(zhu)(zhu)意(yi)，水(shui)(shui)泵(beng)(beng)(beng)標牌(pai)上注(zhu)(zhu)明的(de)揚(yang)(yang)程(cheng)(cheng)(總揚(yang)(yang)程(cheng)(cheng))與(yu)使(shi)用時(shi)的(de)出水(shui)(shui)揚(yang)(yang)程(cheng)(cheng)(實(shi)際揚(yang)(yang)程(cheng)(cheng))是有差(cha)別的(de)，這是由于(yu)水(shui)(shui)流通(tong)過(guo)輸水(shui)(shui)管(guan)和(he)管(guan)路附近時(shi)會有一些的(de)阻力(li)(li)損失。所(suo)以(yi)，實(shi)際揚(yang)(yang)程(cheng)(cheng)一般要比總揚(yang)(yang)程(cheng)(cheng)低(di)10%—20%，出水(shui)(shui)量也相(xiang)應(ying)減(jian)少。因此，實(shi)際使(shi)用時(shi)，只能(neng)按標牌(pai)所(suo)注(zhu)(zhu)揚(yang)(yang)程(cheng)(cheng)和(he)流量的(de)80%～90%估算(suan)，水(shui)(shui)泵(beng)(beng)(beng)配(pei)(pei)套(tao)動(dong)(dong)力(li)(li)的(de)選擇(ze)，可按標牌(pai)上注(zhu)(zhu)明的(de)功(gong)率選擇(ze)，為了使(shi)水(shui)(shui)泵(beng)(beng)(beng)啟動(dong)(dong)迅速和(he)使(shi)用，動(dong)(dong)力(li)(li)機的(de)功(gong)率也可略大于(yu)水(shui)(shui)泵(beng)(beng)(beng)所(suo)需功(gong)率，一般高出10%左右為宜；如果已有動(dong)(dong)力(li)(li)，選購水(shui)(shui)泵(beng)(beng)(beng)時(shi)，則可按動(dong)(dong)力(li)(li)機的(de)功(gong)率選購與(yu)之相(xiang)配(pei)(pei)套(tao)的(de)水(shui)(shui)泵(beng)(beng)(beng)。

要嚴(yan)格(ge)手續(xu)購水泵。選購時要審驗“三(san)證(zheng)(zheng)”，即農(nong)業機械推廣(guang)許(xu)可(ke)(ke)證(zheng)(zheng)、生產許(xu)可(ke)(ke)證(zheng)(zheng)和產品檢驗合格(ge)證(zheng)(zheng)，只有三(san)證(zheng)(zheng)齊全方能避免購置淘汰產品及劣(lie)質產品。