High temperature diaphragm pump

QBK-25PFFTFHigh temperature diaphragm pump

QBK-25PFFTFHigh temperature diaphragm pump

Working principle of QBK pneumatic diaphragm pump

In the two symmetrical working chambers of the diaphragm pump, each is equipped with an elastic diaphragm. The connecting rod integrates the two diaphragms, and compressed air from the pump's inlet joint pushes the diaphragms in the two working chambers, driving the two diaphragms connected by the connecting rod to move synchronously. At the same time, the gas in the other working chamber is discharged out of the pump from behind the diaphragm. Once reaching the end of the journey. The valve mechanism automatically introduces compressed air into another working chamber, pushing the diaphragm in the opposite direction, thus forming synchronous reciprocating motion of the two diaphragms. There are two one-way ball valves installed in each working chamber. The reciprocating motion of the diaphragm causes a change in the volume of the working chamber, forcing the two one-way ball valves to alternately open and close, thereby continuously inhaling and discharging liquid.

Application of QBK pneumatic diaphragm pump

1.Pneumatic diaphragm pumps suck various dichloromethane, strong acids, strong alkalis, and highly corrosive liquids.

2.Pneumatic paint pump suctionLatex paintPaint, gum, pigment.

3.Pump suction adhesive and glue, all types can be pumped.

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

5.After drilling the oil suction well of the pneumatic slurry pump, use the pump to suck up sediment and grout.

6.Pneumatic paint pumps suck various emulsions and fillers.

7.Pump various types of sewage.

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

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

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

11.Pump and suck beer hops and fermented powder slurry, syrup, and molasses.

12. Pneumatic diaphragm pump suction for peanut butter, kimchi, mashed potatoes, sausage, jam, apple sauce, chocolate, etc.

13.Various highly toxic, flammable, and volatile liquids.

14.As a front-end pressure feeding device for various solid-liquid separation equipment

15.Highly resistant to various high-temperature liquids150℃。

Characteristics of QBK Pneumatic Diaphragm Pump

1. Spacious flow and good performance. It allows for the passage of large particles with a diameter of up to 10mm. When pumping mud and impurities, there is minimal wear on the pump;

2. 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):

3. The pump has no rotating parts, no shaft seal, and the medium pumped by the diaphragm is 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;

4. No need for electricity. It is safe and reliable to use in flammable and explosive places.

5. Can work submerged in a medium:

6. 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

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. Can transport viscous liquids (viscosity below 10000 centipoise):

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

10. No need for irrigation. The suction lift can reach up to 5m, the head can reach 50m, and the outlet pressure is ≥ 6kgf/c ㎡.

Common troubleshooting of pneumatic diaphragm pumps

1、 Liquid leaks out from the outlet of the gas chamber

　　 1. Please check if the diaphragm is ruptured.

　　2. Check if the diaphragm is correctly installed and locked.

2、 Pneumatic diaphragm pump cannot start or operates slowly

　 　1. Check if the filtering, pressure regulating, and lubrication devices, as well as the air inlet filter screen, are blocked.

　　2. Check if the air valve is stuck by impurities. Please remove and clean the air valve, and check if there are any scratches on the piston inside the air valve. If the surface of the piston is bright but not black and pure, it indicates that it has been worn and needs to be replaced with the piston and "O" ring. Traces of injury. If the surface of the piston is bright but not black and pure, it indicates that it has been worn and needs to be replaced with the piston and "O" ring. Please replace with a new product

　　3. Check the spindle and "O" ring for scratches, wear, and flattened marks. If damaged, replace them.

3、 The pump is running but the flow rate is too low

1. Check if there are any cavitation spots on the pump body and adjust the inlet pressure of the compressed air. Reduce the operating speed of the pump body to adjust liquids with high viscosity and concentration.

　　2. Check if the valve ball is stuck. If the liquid being transported does not match the material of the valve ball. The valve ball will swell. Please replace the valve ball and seat with suitable materials.

3. Please check if the inlet pipe is blocked.

4、 The exported liquid contains a large number of bubbles

　 　1. Please check if the diaphragm is ruptured.

　　2. Check for leaks in the pump body and piping.