When operating the dosing system should pay attention to what important matters? When running dosing system, pay attention to the following points: A. Dosing pressure B. Stroke frequency C. Suction height D. Altitude E. Corrosive chemicals more What is Prometheus leading the new trend in the field of metering? What measures can be taken to improve the repetitive metering accuracy of the pump when the metering pump outlet is at atmospheric pressure? Installing the valve spring on the metering pump discharge valve improves the accuracy of the repetitive metering but the most effective improvement is Install a back pressure valve at the end of the line. How to adjust the back pressure valve? 1. Never exceed the maximum working pressure metering pump. 2. When the dosing pump has pressure on the suction side, the pressure on the discharge side of the pump must be at least 1 bar higher than the pressure on the suction side. How to choose the right pulse damper volume? By multiplying the metering capacity (ml) per stroke of the metering pump (ml) by 26, the minimum volume (ml) of the pulsation dampener required to reduce the 90% pulsation can be obtained. How to set the pressure of the safety valve? The pressure of the safety valve can be adjusted within the range of the rated working pressure of the metering pump, and it is not allowed to exceed the maximum working pressure of the metering pump. The safety valve is designed to prevent over-pressurization of the metering pump. For example, if the maximum working pressure of the metering pump is 3 bar, the relief valve pressure should be set at 3 bar, or lower to ensure proper operation of the metering pump. Overpressure is one of the major causes of dosing pump damage. With ProMinent® metering pumps, what is the maximum allowable forward pressure? The Alpha metering pump works properly when the forward pressure is less than 1 bar above the pump discharge pressure. If it exceeds the allowable pressure value, the metering pump can not work normally. How to calculate the aspiration height if the fluid being delivered is not water? Divide the nominal aspiration height of the metering pump by the specific gravity of the metering liquid. Under what conditions is self-priming aspiration possible? Self-priming aspiration can be applied if: 1. The metered liquid is easily volatilized; 2. The metered liquid has a high specific gravity; 3. When a higher stroke frequency is required; 4. Metering pump when working in high altitude areas; 5. In the field when the application requires a larger tank, and rely on the self-priming pump is not feasible.