QBK Air-driven Diaphragm Pump

1. Introduction

The air-driven diaphragm pump is a new type of conveying machinery and is currently a new category in China. It uses compressed air as the power source. For various corrosive liquids, liquids with particles, high-viscosity, volatile, flammable, and highly toxic liquids, it can all pump and exhaust them. There are four types of materials for air-driven diaphragm pumps: engineering plastics, aluminum alloy, cast iron, and stainless steel. Air-driven diaphragm pumps can be divided into brass, polypropylene, stainless steel, and aluminum-magnesium alloy diaphragms according to different liquid media. To meet the needs of different users, they are placed in special occasions to pump media that conventional pumps cannot handle, and have achieved satisfactory results.

2. Scope of Application

Due to the above-mentioned characteristics of the air-driven diaphragm pump, since its birth, it has gradually invaded the markets of other pumps and occupied part of it. For example, in the spraying and ceramic industries, air-driven diaphragm pumps have already occupied a dominant position, while in other industries such as environmental protection, wastewater treatment, construction, sewage discharge, and fine chemicals, it is expanding its market share and has an irreplaceable position.

3. Scope of Application (detailed list, seems a bit repetitive in original text structure but presented as is)

1. Since it uses air as power, the flow rate automatically adjusts with the change of back pressure (discharge resistance), for medium and high-viscosity liquids. However, the working point of the centrifugal pump is set with water as the reference. If it is used for fluids with slightly higher viscosity, it is necessary to match it with a gear reducer or frequency converter, which greatly increases costs and is not as good as the air-driven diaphragm pump in this regard.
2. In flammable and explosive environments, pneumatic diaphragm pumps are reliable and low-cost. They can transport fluids without generating sparks and are not prone to overheating. Pneumatic diaphragm pumps are extremely suitable for chemical product transportation in flammable and explosive environments, such as the transportation of fuel, gunpowder, and explosives. It is impossible to produce sparks after being grounded, and no heat is generated during operation. The machine will not overheat, and there is almost no risk of flammable and explosive liquid vapor ignition. The pneumatic diaphragm pump has little vibration and low noise.
3. In harsh places such as construction sites, industrial wastewater discharge, the pipeline is prone to blockage due to a large amount of impurities and components in the sewage, which forms excessive load on the electric pump, and the motor is prone to damage due to overheating. The pneumatic diaphragm pump can pump particles and has an adjustable flow rate. When the pipeline is blocked, it automatically stops until it is unblocked.
4. In addition, the pneumatic diaphragm pump is small in size and easy to move. It does not require a foundation and occupies a very small area. It is easy to install and economical. It can be used as a mobile material transfer pump.
5. In the processing of hazardous and corrosive materials, the pneumatic diaphragm pump can isolate the material from the outside world.
6. Or some experiments that do not contaminate the raw material with other materials.
7. It can be used to transport fluids with relatively unstable chemical properties, such as photosensitive materials and flocculants.

4. The Characteristics

(1) The pump will not overheat: Compressed air is used as power, and during the exhaust process, it is an expansion and heat absorption process. The temperature of the pneumatic pump decreases during operation, and no harmful gases are discharged.
(2) It will not generate electric sparks: The air-driven diaphragm pump does not use electricity as power, and grounding prevents static electricity sparks.
(3) It can pass through liquid containing particles: Since it works in a volumetric manner and the inlet is a ball valve, it is not easy to get clogged.
(4) The shear force on the material is extremely low: The working process involves sucking in and discharging as is, so the material is not stirred much, making it suitable for the transportation of unstable substances.
(5) The flow rate can be adjusted, and a throttle valve can be installed at the material outlet to regulate the flow rate.
(6) It has the function of self-suction.
(7) It can operate without any danger when it is empty.
(8) It can transport a wide range of fluids, from low to high viscosity, from corrosive to non-corrosive.
(9) There is no complex control system, no cables, fuses, etc.
(10) It is small in size and light in weight, making it easy to move.
(11) No lubrication is required, so maintenance is simple, and there is no pollution of the working environment due to dripping.
(12) The pump can always maintain stable operation without being reduced by wear, and the service life of the pump is prolonged.
(13) When the outlet is closed, the pump automatically stops, and the equipment moves, wears, overloads, and heats up.
(14) There are no dynamic seals, and maintenance is simple, avoiding leakage.

5. Performance Functional Data

Attention please: The description might be incorrect, please contact us for confirmation.
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