①和離心(xin)泵相比螺杆泵(bèng)無需安裝閥門(mén)，流量是穩定的(de)線性流動，壓力(lì)和流量範圍寬(kuān)🛀🏻闊而且穩定，脈(mo)動很小。壓力約(yuē)在 3.4-340 Kg.N /cm2 ，流量可達 18600L/min，液(ye)體在泵作連續(xù)而勻速的直❌線(xian)運動，無攪拌現(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流量與泵的(de)轉速成正比，因(yin)而具有良好的(de)變量調節性。(2) the flow is proportional to the pump speed, thus has a good regulatory variables.
    ③和(hé)柱塞泵相比螺(luo)杆泵具有自吸(xi)能力強、吸入高(gāo)度🐉強，無需⭕裝置(zhi)底閥抽真空的(de)附屬設備。(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，螺杆泵(bèng)可輸送高粘度(dù)的物質；運送液(yè)體的種類和粘(zhān)度範圍寬廣。(4) compared with gear, screw pump can transport high viscosity material;Wide range of delivery and type of liquid viscosity.
    ⑤相(xiàng)互齧合的螺杆(gǎn)磨損甚少，泵的(de)使用壽命長，一(yī)般滑油泵💛能使(shǐ)用30-40年，甚至更長(zhǎng)。(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泵的振動和噪(zào)聲極小。The vibration and noise of the pump.
    ⑦因為泵(beng)内的回轉部件(jiàn)慣性力較低，可(ke)在高轉速下工(gōng)作。because the rotary inertia force component inside the pump is low, can work under high rotation speed.
    ⑧結構簡單緊(jǐn)湊，拆裝方便，體(tǐ)積小，質量輕。結(jie)構堅實，安裝保(bao)養容易。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)泵相比螺杆泵(bèng)可輸送各種混(hun)合雜質含有氣(qi)體🏒及固體顆粒(li)或纖維的介質(zhi)，也可輸送各種(zhong)腐蝕性🙇🏻物質； 對(dui)進入的氣體和(hé)污物不太敏感(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和柱塞泵，隔膜(mo)泵及齒輪泵不(bú)同的是，螺杆泵(bèng)可用于藥劑填(tian)充和計量。Attending and plunger pump, diaphragm pump and the gear pump, screw pump can be used in the pharmaceutical filling and metering.
 缺點(diǎn)：Disadvantages:
    ①對被輸送液體(tǐ)中的粘度變化(hua)十分敏感。(1) is sensitive to the viscosity change of the liquid to be delivered.
    ②螺杆(gǎn)的加工精度要(yào)求高、制造困難(nan)。(2) screw machining accuracy requirement is high, the manufacturing difficulty.