①和離心(xīn)泵相比(bi)螺杆泵(bèng)無需安(an)裝閥門(men)，流量是(shi)穩定的(de)線性流(liú)動，壓力(li)和流量(liang)範圍寬(kuān)闊而且(qie)穩定，脈(mo)動很小(xiǎo)。壓力約(yuē)在 3.4-340 Kg.N /cm2 ，流量(liàng)可達 18600L/min，液(yè)體在泵(bèng)作連續(xù)而勻速(sù)的直🌍線(xiàn)😍運動，無(wú)攪拌現(xian)象。(1) there is no need to install the valve compared with screw pump and centrifugal pump, the flow is stable linear flow, and wide range of pressure and flow stability, ripple is small.Pressure about 3.4-340 Kg. N/cm2, flow rate of up to 18600 l/min, liquid in the pump for continuous and uniform linear motion, no mixing phenomenon.
    ②流量(liang)與泵的(de)轉速成(chéng)正比，因(yīn)而具有(you)良好的(de)變量調(diào)節🔴性。(2) the flow is proportional to the pump speed, thus has a good regulatory variables.
    ③和(he)柱塞泵(beng)相比螺(luo)杆泵具(ju)有自吸(xi)能力強(qiáng)、吸入高(gāo)度強，無(wú)需裝置(zhì)底閥抽(chou)真空的(de)附屬設(she)備。(3) compared with those of screw pump plunger pump self-priming capability is strong, strong suction height, without bottom valve vacuum device accessory equipment.
    ④和齒(chǐ)輪相比(bǐ)，螺杆泵(beng)可輸送(song)高粘度(dù)的物質(zhi)；運送液(yè)體的種(zhong)類和粘(zhan)度範圍(wéi)寬廣。(4) compared with gear, screw pump can transport high viscosity material;Wide range of delivery and type of liquid viscosity.
    ⑤相(xiang)互齧合(he)的螺杆(gǎn)磨損甚(shèn)少，泵的(de)使用壽(shou)命長，一(yī)般滑🛀🏻油(you)泵🚶能使(shi)用30-40年，甚(shen)至更長(zhang)。(5) mutual engagement of screw little wear and tear, long service life of pump, oil pump can be used commonly 30-40 years, or longer.
    ⑥泵的振(zhen)動和噪(zào)聲極小(xiǎo)。The vibration and noise of the pump.
    ⑦因為泵(bèng)内的回(huí)轉部件(jian)慣性力(lì)較低，可(kě)在高轉(zhuǎn)速下工(gōng)作。because the rotary inertia force component inside the pump is low, can work under high rotation speed.
    ⑧結構(gou)簡單緊(jin)湊，拆裝(zhuāng)方便，體(ti)積小，質(zhì)量輕。結(jié)構堅實(shí)，安裝保(bao)養容易(yi)。Was simple and compact structure, easy to tear open outfit, small volume, light quality.Solid structure, installation and maintenance easy.
    ⑨和隔膜(mó)泵相比(bǐ)螺杆泵(beng)可輸送(song)各種混(hun)合雜質(zhì)含有氣(qi)體及固(gù)體顆粒(lì)或纖維(wéi)的介質(zhì)，也可輸(shū)送各種(zhong)腐蝕性(xìng)物質； 對(dui)進入的(de)氣體和(hé)污物不(bu)太敏感(gǎn)。Pet-name ruby compared with diaphragm pump screw pump can transport all kinds of gas and solid particle mixing impurities or fiber medium, also can transport all kinds of corrosive substance;To enter a less sensitive gas and dirt.
    ⑩和柱塞(sai)泵，隔膜(mo)泵及齒(chi)輪泵不(bu)同的是(shì)，螺杆泵(bèng)可用于(yú)藥劑填(tian)充和計(ji)量。Attending and plunger pump, diaphragm pump and the gear pump, screw pump can be used in the pharmaceutical filling and metering.
 缺點(dian)：Disadvantages:
    ①對被輸(shū)送液體(tǐ)中的粘(zhan)度變化(huà)十分敏(mǐn)感。(1) is sensitive to the viscosity change of the liquid to be delivered.
    ②螺杆(gǎn)的加工(gōng)精度要(yao)求高、制(zhì)造困難(nan)。(2) screw machining accuracy requirement is high, the manufacturing difficulty.