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Metering pump gap replacement steps introduced
Metering pumps, like any mechanical equipment, can experience failures or require replacement over time. When replacing the pump's diaphragm, there are several important steps to follow carefully. Here’s a detailed guide from Asian Fluid Network on how to replace the metering pump diaphragm properly:
1. Begin by removing the four screws that secure the pump head. These screws are located on the opposite side of the dosing pump. Make sure you have the right tools ready before starting.
2. Once the pump head is removed, inspect the internal components for any signs of damage or wear. If everything looks good, install the new diaphragm and align it with the backplate. Turn the backplate and diaphragm clockwise until they click into place. Ensure the drain discharge hole is positioned at the bottom of the pump for proper drainage.
3. Gently pull the hydraulic end outward to access the screw inside the socket. Hold the liquid chamber and turn it counterclockwise. You may feel some resistance, but continue turning until the gap is loosened and can be removed.
4. After adjusting the position of the hydraulic end and backplate, tighten the four diagonal bolts gradually. Apply even pressure to ensure everything is securely fastened without causing misalignment.
5. Before removing the pump head, set the stroke length to 0% to release pressure on the electromagnetic axis. This ensures stability and makes it easier to remove the diaphragm without damaging other parts.
6. Next, adjust the stroke length back to 100%. This allows the entire assembly to rotate smoothly into the backplate, aligning the drain vent with the bottom of the pump. While the pump is running, make fine adjustments to the hydraulic end and diaphragm to ensure proper positioning.
7. Finally, install the pump head once the deflation device has completed its cycle and the backplate’s leak vent is in a vertical position. Confirm that the suction valve is aligned with the drain hole and that the hydraulic end screw matches the four corresponding holes.
Always keep an eye on your metering pump during operation. If you notice any issues, address them immediately to prevent further damage and maintain optimal performance. Regular maintenance and careful handling are key to extending the life of your equipment.