QBY Series pneumatic diaphragm pump  
QBY Series pneumatic diaphragm pump is the new transport machine driven by compressed air for various corrosive liquids and liquids with solid grain and high viscosity and volatile and flammable and toxin liquids etc.
Pump inlet and outlet has the specification  
:φ*0mm(3/8inch),φ*5mm(1/2inch),φ*5mm(1inch),φ*0mm(1.5inch),φ*0mm(2inch),φ*5mm(2.5inch),φ*0mm(3inch),φ**0mm(4inch),  
4 materials of pump body: Aluminum alloy, cast iron, stainless steel, engineering plastic.  
Diaphragm materials: NBR, Neoprene, Fluorine plastic (Viton), Teflon(FEP/F*6)/PTFE for different medium
Application fields: Petroleum, Chemical industry, electron, ceramic and weave etc
1. Suck peanut,pickles,tomato slurry,red sausage,chocolate,hops and syrup etc.  
2. Suck paint,pigment,glue and adhesive etc.  
3. Suck various glazed slurries of tile,porcelain, brick and chinaware etc.  
4. Suck various milk and wad.  
5. Suck various sewage.cement slurry and mortar etc  
6. Suck variousgrinding materials,corrosive agent and clean the oil dirt etc.   
7. Suck various toxin and flammable or volatility liquid etc.  
8. Suck various strong acid,alkali and corrosive liquids etc.   
9. Be used as the front-step transmission device of the solid and liquid separation equipment.  
Highest temperature of various liquids is**0℃.
1. Self priming without drawing water(Suction height:**7meters), Head:*0m, Discharge pressure≥6kgf/c㎡
2. Max grain diameter: *0mm
3. Head and capacity can be adjusted by air valve (**7kg/c㎡)
4. No rotors and shaft seal to insure no leakage. 
5. Driver of pump is compressed air but not electricity.  Safe to flammable and explosive condition.
6. It can be soaked in medium.
7. Convenient to use and operate the pump. Only need to open air valve. When pump overloads,pump can automatically stop.  
8. Simple structure and less wearing parts.  
9. It can transport the liquids which viscosity is below ****0 centipoise.  
*0. The pump need not lubricant oil. Even if idle , pump is not affected.