QBY氣動隔膜泵即能抽送流動的液體，又能輸送一些不易流動的介質(zhì)，具有自吸泵、潛水泵、屏蔽泵、泥漿泵和雜質(zhì)泵等輸送機械的許多優(yōu)點。 1、 不需灌引水，吸程高達7米，揚程達70米，出口壓力≧6kgf/cm2 2、 流動寬敞，通過性能好，允許通過最大顆粒直徑達10毫米。抽送泥漿、雜質(zhì)時，對泵磨損甚微； 3、 揚程、流量可通過氣閥開度實現(xiàn)無級調(diào)節(jié)（氣壓調(diào)節(jié)在1-7 kgf/cm2之間 4、 該泵無旋轉(zhuǎn)不見，沒有軸封，隔膜將抽送的介質(zhì)與泵的運動部件、工件介質(zhì)完全隔開，所輸送的介質(zhì)不會向外泄漏。所以抽送有毒、易揮發(fā)或腐蝕性介質(zhì)時，不會造成環(huán)境污染和危害人身安全； 5、 不必用電，在易燃、易爆場所使用安全可靠 6、 可以浸沒在介質(zhì)中工作 7、 使用方便、工作可靠、開停只需簡單地打開和關(guān)閉氣體閥門，即使由于意外情況而長時間無介質(zhì)運行或突然停機，泵也不會因此而損壞，一旦超負荷，泵會自動地停機，具有自我保護性能，當負荷恢復正常后，又能自動啟動運行； 8、 結(jié)構(gòu)簡單、易損件少，該泵結(jié)構(gòu)簡單，安裝、維修方便，泵輸送的介質(zhì)不會接觸到配氣閥，聯(lián)桿等運動部件，不像其他類型的泵因轉(zhuǎn)子、活塞、齒輪、葉片等部件的磨損而使性能逐步下降； 9、 可輸送較粘的液體（粘度在1萬博以下）； 10、 本泵無須用油潤滑，即使空轉(zhuǎn)，對泵也無任何影響，這是該泵一大特點； QBY air operated double diaphragm pumps not only can exhaust the flow liquid, but also can convey some uneasy flowed medium, with the merits of self-pumping pump, diving pump, shield pump, slurry pump and impurity pump etc. 1、 It’s unnecessary to pour the drawing water, the suction lift reaches 7m height, the delivery lift reaches 70m length and the export pressure ≧6kgf/cm2 2、 Wide flow and good performance. The diameter allowed to pass the max grain reaches 10mm. the damage is very less to the pump while exhausting the slurry and impurity. 3、 The delivery lift and flow can pass the pneumatic valve open to realize the step less adjustment (the pneumatic pressure adjustment is between 1-7 kgf/cm2 4、 This pump has no rotary parts and no bearing seals. The diaphragm will completely separate the exhausted medium and pump running parts, working medium. The conveyed medium can’t be leaked outside. Thus it will not cause the environmental pollution and human body safety dangerous while exhausting the toxin and flammable or corrosive medium. 5、 No electricity. It’s safe and reliable while using in the flammable and explore places. 6、 It can be soaked in medium. 7、 It’s convenient to use and reliable to work. only open or close the gas valve body while starting or stopping. Even if no medium operation or pausing suddenly for long time because of accident matters, the pump will not be damaged caused by this. once over-loading, the pump will automatically stop and possesses the self-protection function. When the load recovers normally, it also can start automation. 8、 Simple structure and less wearing parts. This pump is simple in structure, installation and maintenance. The medium conveyed by the pump will not touch the matched pneumatic valve and coupling lever etc. not like other kinds pumps, the performance will drop down gradually because of the damages of rotor, gear and vane etc. 9、 It can transmit the adhesive liquid (the viscosity is below 10000centipoise) 10、 This pump needn’t the oil lubricant. Even if idling, it has any influence to the pump. This is a characteristic of this pump.