QBY2Z Pneumatic Diaphragm PumpDetailed product description：

QBY2 pneumatic diaphragm pump can not only pump flowing liquids, but also transport some media that are not easy to flow. It has many advantages over conveying machinery such as self-priming pumps, submersible pumps, shielded pumps, mud pumps, and impurity pumps.
1. No need for water injection. The suction lift can reach up to 5m, the head can reach 70m, and the outlet pressure is ≥ 6bar.
2. Spacious flow and good passing performance. It allows for a maximum particle diameter of 10mm. When pumping mud and impurities, there is minimal wear on the pump;
3. The head and flow can be infinitely adjusted through the opening of the air valve (the air pressure can be adjusted between 1-7 bar):
4. The pump has no rotating parts, no shaft seal, and the medium pumped by the diaphragm pump is completely separated from the moving parts and workpiece medium of the pump, so the conveyed medium will not leak outward. So when pumping toxic, easily reactive or corrosive media, it will not cause environmental pollution and endanger personal safety;
5. No need for electricity. It is safe and reliable to use in flammable and explosive places;
6. Can work submerged in a medium:
7. Easy to use, reliable in operation, and only requires simple opening and closing of the gas valve. Even if the pump runs without medium for a long time or suddenly stops due to unexpected situations, it will not be damaged. Once overloaded, the pump will automatically stop, with self-protection performance. When the load returns to normal, it can automatically start and run again;
8. The pump has a simple structure and few vulnerable parts. It is easy to install and maintain, and the medium transported by the pump does not come into contact with moving parts such as the valve and connecting rod. Unlike other types of pumps, the performance gradually decreases due to wear and tear of components such as rotors, pistons, gears, and blades
9. Can transport viscous liquids (viscosity below 10000 centipoise):
1. This pump does not require oil lubrication and has no impact on the pump even when idling. This is the biggest feature of the pump.  
Advantages
Using compressed air as the power source, it can extract and absorb various corrosive liquids, particulate liquids, high viscosity, volatile, flammable, and highly toxic liquids, especially suitable for flammable and explosive fields.
Ability
Product operation, safe and reliable, corrosion-resistant, durable, self-priming, non-destructive during idling, multiple materials, widely used, simple device, maintenance free.
App Market
1. Food processing/biological hygiene/pharmaceuticals
2. Automotive/Electroplating and Polishing
3. Ceramics/Coatings/Glazes
4. Chemistry/Petroleum
5. Chemical buildings/public facilities
6. Mechanical support/wastewater treatment

Product Features
1. Due to the use of air as a power source, the flow rate automatically adjusts with changes in back pressure (outlet resistance), making it suitable for fluids with medium to high viscosity. The working point of a centrifugal pump is set based on water. If it is used for fluids with slightly higher viscosity, it needs to be matched with a reducer or frequency converter, which greatly increases the cost. The same applies to gear pumps.
2. The use of pneumatic pumps in flammable and explosive environments is reliable and cost-effective, such as the transportation of fuel, gunpowder, and explosives, because: firstly, sparks cannot be generated after grounding; Secondly, there is no heat generated during work, and the machine will not overheat; Thirdly, the fluid will not overheat because the diaphragm pump has minimal agitation on the fluid.
3. In harsh areas of construction sites, such as construction sites and industrial and mining wastewater discharge, due to the high impurities and complex composition in the sewage, the pipelines are prone to blockage, which leads to excessive load on the electric pump and makes the motor vulnerable to heating. Pneumatic diaphragm pumps can pass particles and have adjustable flow rates, automatically stopping until unobstructed when the pipeline is blocked.
4. In addition, the diaphragm pump has a small volume, is easy to move, does not require a foundation, occupies a very small area, and is easy and economical to install. Can be used as a mobile material conveying pump.
5. In the handling of hazardous and corrosive materials, diaphragm pumps can completely isolate the materials from the outside world.
6. Or ensure that there are no impurities contaminating the raw materials in some experiments.
7. Can be used to transport fluids with relatively unstable chemical properties, such as photosensitive materials, flocculants, etc. This is because the shear force of the diaphragm pump is low and has little physical impact on the material.

Product Use
Chemical industry: acids, bases, solvents, suspensions, dispersion systems.
Petrochemical industry: crude oil, heavy oil, grease, mud, sludge, etc.
Coatings industry: resins, solvents, colorants, paints, etc.
Daily chemical industry: detergent, shampoo, lotion, emulsion, hand cream, surfactant.
Ceramic industry: mud, porcelain slurry, lime slurry, clay slurry.
Mining industry: coal slurry, magma, mud, mortar, explosive slurry, lubricating oil
Water treatment: lime slurry, soft sediment, sewage, chemicals, wastewater, etc.
Food industry: liquid semi-solid, chocolate, salt water, vinegar, syrup, vegetable oil, soybean oil, honey, animal blood.
Beverage industry: yeast, syrup, concentrate, gas-liquid mixture, wine, juice, corn syrup, etc.
Pharmaceutical industry: solvents, acids, alkalis, plant extracts, ointments, plasma and other types of pharmaceutical materials.
Paper industry: binders, resins, paints, inks, pigments, hydrogen peroxide, etc.
Electronics industry: solvents, electroplating solutions, cleaning solutions, sulfuric acid, nitric acid, waste acid, corrosive acids, polishing solutions.
Textile industry: dye chemicals, resins, adhesives, etc.
Construction industry: cement slurry, ceramic tile adhesive, rock slurry, ceiling paint, etc.
Automotive industry: polishing emulsions, oils, coolants, automotive primers, oil emulsions, varnishes, varnish additives, degreasing solutions, paints.
Furniture industry: adhesives, varnishes, dispersion systems, solvents, colorants, white wood glue, epoxy resins, starch adhesives.
Metallurgy, casting, and dyeing industries: metal slurry, hydroxide and carbide slurry, dust cleaning slurry, etc.

working conditions
Model significance

The pump model consists of five units and is compiled in the following order

Pump code: QBY2
Caliber codes: 10 (3/4), 15 (1/2), 25 (1), 40 (11/2), 50 (2), 65 (21/2), 80 (3), 100 (4)
Design type code: 2
Pump body material code

Pump body material	code name	Pump body material	code name
aluminum alloy	L	stainless steel	B
cast iron	Z	rubber lining	CJ
engineering plastic	S	fluorine-lined	CF

Diaphragm material code

Diaphragm material	code name	Diaphragm material	code name
Nitrile rubber	NBR	neoprene	CR
fluororubber	F	PTFE rubber	F46
Ethylene Propylene Rubber	EPDM