When the integrated dosing device is installed, it is recommended that the suction line be self-filled, and the suction end of the pump is lower than the lowest level of the liquid storage tank. If a suction lift installation is required, a foot valve must be added to the suction nozzle. The 2.5 m water column is the maximum allowable suction height. It is also recommended to install a filter in the suction line for inspection and cleaning. At the same time, the necessary shut-off valves and piping must be connected for future maintenance.

A pulsation damper and a safety valve must be installed in the outlet line of the integrated dosing device. If the pressure is lower than 3 Bar, it is recommended to install a back pressure valve to avoid siphoning. The diameter of the suction line must be larger than the inlet valve size of the metering pump. The diameter of the metering pump must be considered in consideration of the peak flow rate of the metering pump, the length of the line and the viscosity of the material. When the pulsation damper is not installed in the outlet line, the diameter of the pipe diameter must also be determined by referring to the selection of the suction pipe diameter.

The motor wiring of the integrated dosing device must refer to the motor nameplate and operating instructions; disconnect the metering pump outlet line or open the line exhaust valve. Add the lubricating oil according to the oil level indication, then adjust the stroke to 0%, start the metering pump, and discern whether there is abnormal noise in the pump body; gradually increase the stroke to 100%, observe whether the metering pump outlet has material conveying, and the flow rate is adjusted with the stroke. And change. Finally, close the line vent valve or connect the outlet line to add material to the system.www.khnwatertreatment.com