Dosing device is mainly used for water supply plants, boiler water, recycled water, wastewater treatment, can also be used in petroleum, chemical, environmental protection, water supply systems and other industries. Modular units dosing device, mainly composed of integrated solution tank, metering pumps, filters, safety valves, check valves, pulsation damper, water table, control cabinet is mounted on a base. Users simply combined dosing device placed between the dosing, the dosing tube connected power can be put into operation to start, this entire device factory, and can greatly reduce the workload of the design and site construction for overall quality, safety and on-site and put into operation to provide a reliable guarantee. Dosing device works is the main metering pump dosing device, the solution kits, a stirrer, a level gauge, safety valve, check valve, pressure gauge, filter, buffer, piping, valves, base, escalator, power control system according to the process requires assembly on a common platform to form a module, with a compact, small size, low noise, smooth, easy to install, operate and easy to use. Dosing device designed by a different process, the precise configuration of various types of solid and liquid chemical solution, then accurate dosing metering pump, in order to achieve a variety of design requirements. Such as cleaning, oxygen, coagulation, acid, alkali and so on. Dosage and dosing device Dosing pressure, according to the needs of industrial processes, select the appropriate metering pump. Traffic from 1L / h to 8000L / h, pressure from 0.1MPa to 25MPa range can choose the right products, the measurement accuracy of the metering pump up to ± 1%, and can achieve a variety of media at the same time conveying individually adjusted. Volume dosing device may be the smallest of the solution tank 0.1m3 to 20m3, can be selected according to the dosage, depending on the transmission medium, there are a variety of materials to choose from, such as carbon steel (carbon steel lining), stainless steel, non- metal material (PE, PVC, PP, PTFE) and the like. Applications thermal power industry furnace water treatment system, cooling system, central air conditioning circulating water system, raw water pre-treatment and wastewater treatment systems; petroleum, chemical industry furnace water treatment systems, cooling systems, chemical additives dosing system, medical, electronics waste water treatment and other industries disinfection system; municipal water supply, swimming pools, water, sewage treatment, water disinfection building life; industrial water recycling, industrial wastewater treatment disinfection; other related industries liquid dosing system. Selection Notes 1, when the user selected dosing device, first to determine the selection of specifications (including metering pump parameters, stirred tank volume, solution tank volume and field conditions) The system requires dosing solution volume, according to dosing, to determine dosing method (usually by way of "opening and preparation" or open a backup); 2, according to need to select material (stainless steel, carbon steel, non-metallic materials) dosing device every part of the metering pump model (diaphragm plunger pump) or agents for parameters (name, concentration, temperature, density, viscosity, corrosion, etc.) plus; 3, several boxes of ordering system for the pump; 4, a piston or diaphragm metering pump; 5, metering pump flow and pressure; 6, the system is controlled manually or automatically controlled;