①和(hé)離心泵相(xiàng)比螺杆泵(beng)無需安裝(zhuāng)閥門，流量(liang)是穩定的(de)線性流動(dòng)，壓力和流(liu)量範圍寬(kuān)闊♋而且穩(wěn)定，脈動很(hěn)小。壓力約(yue)在 3.4-340 Kg.N /cm2 ，流量可(kě)達 18600L/min，液體在(zài)泵作連續(xù)而勻速的(de)直🆚線運♻️動(dong)，無🔱攪🌂拌現(xiàn)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(yu)泵的轉速(sù)成正比，因(yīn)而具有良(liang)好的變量(liang)調💛節性。(2) the flow is proportional to the pump speed, thus has a good regulatory variables.
    ③和(he)柱塞泵相(xiàng)比螺杆泵(bèng)具有自吸(xī)能力強、吸(xī)入高度強(qiáng)，無需✏️裝置(zhi)底閥抽真(zhēn)空的附屬(shǔ)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(chi)輪相比，螺(luó)杆泵可輸(shu)送高粘度(du)的物質；運(yun)送液體的(de)種類和粘(zhān)度範圍寬(kuān)廣。(4) compared with gear, screw pump can transport high viscosity material;Wide range of delivery and type of liquid viscosity.
    ⑤相互齧(nie)合的螺杆(gan)磨損甚少(shǎo)，泵的使用(yòng)壽命長，一(yī)般滑油泵(bèng)👨‍❤️‍👨能使用30-40年(nián)，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(dòng)和噪聲極(ji)小。The vibration and noise of the pump.
    ⑦因為泵(bèng)内的回轉(zhuan)部件慣性(xing)力較低，可(kě)在高轉速(su)下工作。because the rotary inertia force component inside the pump is low, can work under high rotation speed.
    ⑧結(jie)構簡單緊(jǐn)湊，拆裝方(fāng)便，體積小(xiǎo)，質量輕。結(jié)構堅實，安(an)裝保養容(rong)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(mo)泵相比螺(luó)杆泵可輸(shu)送各種混(hun)合雜質含(han)有氣體及(jí)固體顆粒(lì)或纖維的(de)介質，也可(kě)輸送各種(zhǒng)腐蝕性物(wu)質； 對進入(ru)的氣體和(hé)污物不太(tài)敏感。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(zhu)塞泵，隔膜(mo)泵及齒輪(lún)泵不同的(de)是，螺杆泵(bèng)可用于藥(yào)劑填充和(hé)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(dian)：Disadvantages:
    ①對被輸送(song)液體中的(de)粘度變化(hua)十分敏感(gǎn)。(1) is sensitive to the viscosity change of the liquid to be delivered.
    ②螺杆的加(jia)工精度要(yao)求高、制造(zào)困難。(2) screw machining accuracy requirement is high, the manufacturing difficulty.