Product Overview

QBYThe series of pneumatic diaphragm pumps can not only pump flowing liquids, but also transport some non flowing media, with many advantages of self-priming pumps, submersible pumps, shielded pumps, mud pumps, and impurity pumps. Mainly used for transporting corrosive, toxic, and volatile liquids; Pneumatic diaphragm pumps with corresponding materials can be selected according to different conveying materials.

Product Features

1No need for irrigation or water diversion, suction up to 5 meters, lift up to 70 meters, outlet pressure ≥ 0.6Mpa

2Spacious flow and good performance, allowing for a maximum particle diameter of up to 10 millimeters. When pumping mud and impurities, there is minimal wear on the pump;

3The head and flow can be infinitely adjusted through the opening of the air valve (the air pressure can be adjusted between 1-7 bar)

4There are no rotating parts, shaft seals, diaphragms, etc. The medium being pumped is completely separated from the moving parts and workpiece medium of the pump, and the conveyed medium will not leak outward. So when pumping toxic, volatile or corrosive media, it will not cause environmental pollution and endanger personal safety;

5Gas does not require electricity and can be used safely and reliably in flammable and explosive places

6Can work submerged in a medium

7Easy to use, reliable in operation, with simple opening and closing of the gas valve for on-off operation. 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 operate again;

8The 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;

9Can transport relatively viscous liquids (viscosity below 10000 centipoise);

10One major feature of this pump is that it does not require oil lubrication and has no impact on the pump even when idling;

working principle

There is a diaphragm installed in each of the two symmetrical working chambers A and B of the pump, which is connected as a whole by a central connecting rod. Compressed air enters the valve through the inlet of the pump, and is introduced into one chamber through the valve mechanism, pushing the diaphragm in the chamber to move while the gas in the other chamber is discharged. Once the travel endpoint is reached, the valve mechanism automatically introduces compressed air into another working chamber, pushing the diaphragm in the opposite direction, thereby causing the two diaphragms to continuously and synchronously reciprocate.

In the diagram, compressed air enters the distribution valve through E, causing the diaphragm to move to the right. The suction force in chamber A causes the medium to flow into chamber C through the inlet, pushing open ball valve 2 and entering chamber A, while ball valve 4 is locked due to suction; The medium in chamber B is squeezed, pushing open ball valve 3 and flowing out through outlet D. At the same time, ball valve 1 is locked to prevent backflow, and this cycle is repeated to continuously suck in the medium from inlet C and discharge it from outlet D. The export direction can be customized according to user needs (please specify clearly when ordering).

Main purpose

1Pump paint, gum, and pigment.

2Adhesive and glue, all types can be pumped up.

3Pump peanut butter, kimchi, mashed potatoes, red sausage, jam apple puree, chocolate, etc.

4Various types of tiles, porcelain, bricks, and ceramic glazes.

5After drilling the oil well, use a pump to suck up sediment and grout.

6Pump various emulsions and fillers.

7Pump various types of sewage.

8Use a pump as an oil tanker and a barge to clear and extract sewage from the warehouse.

9Hops and fermented powder slurry, syrup, sugar dense.

10Pump water from mines, tunnels, ore dressing, and slag. Pump cement grout and mortar.

11Various rubber pastes.

12Various abrasives, corrosives, petroleum and mud, cleaning oil stains, and general containers.

13Various highly toxic, flammable, and volatile liquids.

Model meaning

QBY - 50

Q: Pneumatic type

BY: Diaphragm pump code

50: Inlet and outlet diameter (mm)

System Connection Diagram

Performance curve chart

Installation dimension diagram

Installation dimension table

Performance parameter table