The **DBY type electric diaphragm pump** is an innovative and advanced pumping solution that has gained significant popularity in recent years. Thanks to breakthroughs in diaphragm materials, this type of pump is now widely used across various industrial sectors globally, gradually replacing traditional centrifugal pumps and screw pumps. It is commonly applied in industries such as petrochemical, ceramic, metallurgical, and more. The design of the DBY pump is based on the prototype developed by the American company ABEL, making it a reliable and efficient choice for low-pressure applications, where the outlet pressure does not exceed 3 kgf/cm².
The main purpose of the **DBY type electric diaphragm pump** includes:
1. Handling highly toxic, flammable, and volatile liquids.
2. Transporting strong acids, strong alkalis, and other highly corrosive media.
3. Operating at high temperatures up to 150°C.
4. Serving as a pre-stage pressure supply device for various filter presses.
5. Recovering and recycling hot water.
6. Managing tank trucks, oil depots, and oil handling operations.
7. Pumping thick substances like kimchi jam, mashed potatoes, and chocolate.
8. Transferring paint, gum, and pigment binders.
9. Pumping porcelain cement grouting mortar.
10. Moving rubber latex, organic solvents, and fillers.
11. Clearing tankers and removing residual oil.
12. Handling hop slurry, baking powder, syrup, and sugar solutions.
13. Pumping sewage, mine sediments, tunnel water, and sewer effluents.
14. Suction of special and challenging media.
Below is the **structure diagram** of the **DBY type electric diaphragm pump**.
![DBY Type Electric Diaphragm Pump Structure Diagram]
Here is the **performance parameter table** of the DBY series pumps:
| Model | Flow (m³/h) | Suction (m) | Head (m) | Outlet Pressure (kgf/cm²) | Electric Power (RPM/KW) | Cast Iron Temp (°C) | Stainless Steel Temp (°C) | Pump Inlet/Outlet Size | Weight (Kg) |
|---------|-------------|-------------|----------|---------------------------|--------------------------|---------------------|---------------------------|------------------------|-------------|
| DBY-10 | 0.5 | 3 | 30 | 3 | 1450/0.55 | 90 | 150 | 3/8" Thread | 50 |
| DBY-15 | 0.75 | 3 | 30 | 3 | 1450/0.55 | 90 | 150 | 1/2" Thread | 50 |
| DBY-25 | 3.5 | 4 | 30 | 3 | 1450/1.5 | 90 | 150 | 1" Thread | 170 |
| DBY-40 | 4.5 | 4 | 30 | 3 | 1450/2.2 | 90 | 150 | 1½" Thread | 180 |
| DBY-50 | 6.5 | 4.5 | 30 | 3 | 1450/4 | 90 | 150 | 50mm Flange | 400 |
| DBY-65 | 8 | 4.5 | 30 | 3 | 1450/4 | 90 | 150 | 65mm Flange | 400 |
| DBY-80 | 16 | 5 | 30 | 3 | 1450/5.5 | 90 | 150 | 80mm Flange | 610 |
| DBY-100 | 20 | 5 | 30 | 3 | 1450/5.5 | 90 | 150 | 100mm Flange | 610 |
The **characteristic curve** of the DBY pump illustrates its performance under varying conditions.
![Characteristic Curve of DBY Pump]
For installation and usage, please refer to the following instructions:
![Installation and Usage Diagram]
The **working principle** of the DBY type electric diaphragm pump involves the following steps:
1. The motor drives the diaphragm to move.
2. The diaphragm performs reciprocating motion.
3. This motion drives the plunger inside the pump chamber.
4. The left and right pump chambers are equipped with four one-way ball valves.
5. As the volume in the working chamber changes, the ball valves open and close alternately, enabling continuous suction and discharge of liquid.
Finally, here is the **installation dimension table** for the DBY series:
| Model | A (mm) | B (mm) | D (mm) | Φ (mm) | L (mm) | H1 (mm) | H2 (mm) |
|---------|--------|--------|--------|--------|--------|---------|---------|
| DBY-10 | 456 | 342 | 185 | Φ12×4 | 650 | 370 | 50 |
| DBY-15 | 456 | 342 | 185 | Φ12×4 | 650 | 370 | 50 |
| DBY-25 | 537 | 455 | 210 | Φ14×4 | 1060 | 480 | 60 |
| DBY-40 | 537 | 455 | 210 | Φ14×4 | 1060 | 480 | 60 |
| DBY-50 | 800 | 345 | 345 | Φ16×4 | 1510 | 700 | 85 |
| DBY-65 | 800 | 345 | 345 | Φ16×4 | 1510 | 700 | 85 |
| DBY-80 | 800 | 345 | 345 | Φ18×4 | 1690 | 900 | 96 |
| DBY-100 | 800 | 345 | 345 | Φ18×4 | 1690 | 900 | 96 |
This comprehensive overview highlights the versatility, efficiency, and reliability of the DBY type electric diaphragm pump, making it a preferred choice for a wide range of industrial applications.
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