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Instructions for the use of metering pump accessories in the system: 1. The correct selection of accessories in the entire dosing system is crucial for the proper and safe operation of the whole system. If you have any questions, please call for consultation. 2. The safety valve serves to protect the metering pump and the piping system in the system. When the system pressure exceeds the set pressure of the safety valve, the valve opens to release pressure, thereby protecting the metering pump and the piping system from damage caused by excessive pressure. 3. The function of the filter is to prevent fibrous or large-particle materials from entering the metering pump and blocking the inlet and outlet check valves, thereby preventing the pump from functioning properly. 4. The function of the backpressure valve is to prevent siphoning in the system and ensure the output accuracy of the metering pump. It must be used when the system pressure is low or negative. It is not necessary to use in positive pressure systems. The backpressure valve should be installed as close as possible to the dosing point, which is particularly important in automatic chemical dosing to avoid delays in dosing. 5. The dynamic damper serves to reduce fluctuations in the flow rate and pressure at the outlet of the metering pump, thereby meeting certain process requirements. General process requirements specify a pulsation value of 5%-10%, while more stringent processes require 3%-5%. This post was last edited by chinazwr on 2009-2-12 20:01.]