Introduction to Performance Characteristics of Pneumatic Diaphragm Pump

QBK pneumatic diaphragm pump can not only transport 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 irrigation, with a suction height of up to 5 meters, a lift of 50 meters, and an outlet pressure of 6 bar;

2. Spacious 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;

3. The head and flow rate 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, shaft seals, diaphragms, etc. The medium 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;

5. No need for electricity, safe and reliable to use in flammable and explosive places;

6. After the exhaust port is connected to the liquid level of the medium, it can be immersed in the medium for operation;

7. Easy 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;

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);

10. This pump does not require oil lubrication, and even when idling, it has no impact on the pump, which is a major feature of this pump;

Material Description of Cast Iron Pneumatic Diaphragm Pump

The pump body (two side columns, inlet and outlet pipes) is made of high-quality cast iron, equipped with nitrile rubber (NBR) material sealing balls, sealing ball seats, nitrile rubber (NBR) diaphragm sheets, which can be used to transport non corrosive media such as sewage, oil, slurry, etc.

Optional accessories for pneumatic diaphragm pump

1. The original diaphragm, ball, and ball seat of cast iron and aluminum alloy diaphragm pumps are made of nitrile rubber. Fluorine lined engineering plastic diaphragm pump and stainless steel diaphragm pump are originally equipped with F46 diaphragm on the basis of nitrile rubber diaphragm, and the ball and ball seat are made of polytetrafluoroethylene.

2. The purpose of diaphragm material:

Ding Qing rubber material: resistant to gasoline, engine oil, and medium to weak corrosive liquids.

Chloroprene rubber material: resistant to various acidic and alkaline liquids.

Polytetrafluoroethylene (PTFE) and Tetrafluoroethylene (F46): resistant to strong acids, strong bases, and various organic solvents.

3. Select diaphragm sheets, balls, and ball seats of different materials according to the different conveying media.

Packing list for QBY-25TD/QBK-25TD cast iron diaphragm pump: pump (1 unit), air source interface (1 unit), muffler (1 unit), instruction manual (1 copy), certificate of conformity, pump nameplate; Outer packaging: wooden crate packaging

Service conditions for cast iron pneumatic diaphragm pump

1. Operating temperature ≤ 80 ℃

2. Clean compressed air with an intake pressure of ≤ 7 bar

3. Maximum particle size passing through 2.5mm

The significance of pneumatic diaphragm pump model

Performance parameters of pneumatic diaphragm pump

Note: ★=Yes/=No

Installation method of pneumatic diaphragm pump

This method can be used to transfer liquid from container A to container B.

Installation and Connection Diagram of Pneumatic Diaphragm Pump System

Please provide the selection

1. Product name and model, pipeline diameter, used head (m), used suction (m), used medium name, specific gravity, viscosity, corrosiveness, and toxicity.

2. If the design unit has already selected our company's model, please place an order directly with the sales department of Lvbang Pump Industry according to the model.

Note: Please provide detailed product usage requirements as much as possible to ensure the correctness of our selection and improve the highest efficiency of use.

Diaphragm pump sealing ball, diaphragm sheet specification table:

Performance parameters of pneumatic diaphragm pump

Note: ★=Yes/=No

QBK-25TD cast iron pneumatic diaphragm pump external installation dimensions CAD drawing: