The flow rate adjustment of the diaphragm pump is adjusted by changing the piston stroke by the rotation adjustment mechanism. The principle is to rotate the adjustment mechanism of the handwheel (you can see the position change on the dial), the axial transformation through the adjustable shaft and the sliding shaft
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The flow rate adjustment of the diaphragm pump is adjusted by changing the piston stroke by the rotation adjustment mechanism. The principle is that the hand wheel of the rotation adjustment mechanism (the position change on the dial can be seen), the axial transformation occurs through the adjustable shaft and the sliding shaft, and the movement is converted into the radial displacement of the eccentric through the chute on the sliding shaft. The piston is pushed through the connecting rod, and the flow adjustment is achieved due to the change of the stroke of the piston.
Diaphragm pump repair is different from other types of pumps
1. Check the diaphragm pump valve should pay attention to whether the sealing ring is aging deformation, whether the spring elastic force is seriously reduced, whether the valve port and the valve core are worn or corroded, etc. The valve end face should be flush with the pump body flange surface during installation. Enter
2. When the diaphragm pump diaphragm is replaced, the disassembly and assembly pump head should be lifted in advance to prevent falling damage;
3. When the adjustment mechanism is disassembled, the stroke length position (stroke length is 5mm) should be calibrated. Remove the scale seat and slide the scale ring into the calibration position. The measured stroke length should be exactly the same as the scale.
4. When the diaphragm pump piston is disassembled, use a special pointed tool to take out the packing ring from its slot and do not damage the ring groove;
5. Diaphragm pump worm and worm gear should be inspected. The teeth should be intact. There should be no cracks or broken teeth. Check the meshing contact when installing.
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