I would like to know what factors affect the exhaust frequency of diaphragm pumps?
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I would like to ask fellow sailors: What factors determine the exhaust frequency of diaphragm pumps? We have a diaphragm pump on site that is used for transporting dirty oil. I noticed that, with a constant opening of the air valve and unchanged inlet pressure, the higher the back pressure, the longer the exhaust time – in other words, the lower the exhaust frequency. Why is this? Thank you all for your answers!
When the back pressure is high, it’s difficult to push forward, and thus the operation slows down.
Mm-hmm... I agree with you; I think it should be the same case! So, does a lower back pressure result in a higher exhaust frequency? Can a diaphragm pump run dry for a long time (for example, half an hour or an hour)? Could it cause damage to the diaphragm pump? Thank you for your answer!
Fluid: The type of fluid you intend to pump and its combination are the most important factors when selecting a pump. To avoid wear or corrosion, determine the chemical composition and consistency of the fluid. Is it a clean liquid or sludge (a semi-liquid mixture)? Viscosity: An important factor in the selection process of coating viscosity pumps. Robust pumping equipment is needed to move highly viscous fluids. To provide some insights, in all the Flo, nine, and ten models, the oil extraction ratio is lower compared to oils with lower viscosity. Flow rate: To select the appropriate pump, it is important to determine the flow velocity, measured in gallons per minute (GPM), or simply, the size of the pump in terms of diameter. Generally, if you want a higher flow rate, you need a larger pump and larger pipe sizes. Pressure: Determining the potential pressure conditions at the pump’s inlet and outlet will help identify the appropriate equipment required. The temperature of the fluid determines the material of the pump that is most suitable for a particular application.
A diaphragm pump is essentially a piston pump; the only difference is that it requires a higher standard for the medium used, needs to be isolated from other media, and a diaphragm is added in between. If the system pressure is too high, exceeding the maximum pressure that the pump can deliver, it will prevent the pneumatic system from functioning properly; this is usually manifested by a reduced working stroke and frequency, or even no movement at all. Lowering the system pressure appropriately will resolve the issue.