Beijing valve manufacturer
1. Beijing Net Spring Ecological Technology Co., Ltd. focuses on the sales and service of efficient water-saving equipment and water treatment equipment. The company has a complete sales, service and warehousing logistics base, with service support centers in many areas of China. ? We sell all kinds of high-quality irrigation and water treatment equipment, head filtration system, water and fertilizer integrated system and professional automatic control equipment in Israel and the United States.
2. Beijing Wenda Ye Wei Electromechanical Equipment Co., Ltd. is a comprehensive enterprise integrating valve research and development, pipeline automation technical service and imported valve sales. With its strong technical strength and years of practice and selection experience, we can provide you with products and technical services with different media, different pressures and different standards.
3. Beijing Century Zhongao Air Conditioning and Ventilation Equipment Co., Ltd. mainly deals in fans, fire dampers, fume purifiers, air volume control valves, silencers, filters, tuyeres, air doors, hoods, diffusers, static pressure boxes, air ducts, all kinds of low-noise fans, fire-fighting smoke exhaust fans, centrifugal fans, roof ventilators, fume purifiers, fan coils, fresh air ventilator, shock absorbers, exhaust fans, thermostats and stainless steel fire prevention.
Valve cleaning steps
The valves used in the fluid control system, from the simplest cut-off valve to various valves used in the extremely complicated automatic control system, have quite a variety of varieties and specifications. Valves can be used to control the flow of various fluids, such as air, water, steam, corrosive media, mud, oil, liquid metal and radioactive media. Valves are divided into cast iron valves, cast steel valves and stainless steel valves (20 1, 304, 3 16, etc. ), chrome-molybdenum steel valves, chrome-molybdenum steel valves, dual-phase steel valves, plastic valves, non-standard customized valves, etc.
Before assembly, the valve parts must go through the following processes:
1, according to the machining requirements, some parts need to be polished, and the surface should not have machining burrs.
2. All parts are degreased;
3. After degreasing, pickling and passivation, and the cleaning agent does not contain phosphorus;
4. Rinse with pure water after pickling and purification, and there can be no chemical residue, so this step is omitted for carbon steel parts;
5. Dry the parts one by one with non-woven fabrics, and do not leave steel wool on the surface of the parts or dry them with clean nitrogen;
6. Wipe the parts one by one with non-woven fabric or precision filter paper dipped in analytical pure alcohol until there is no dirty color.
The valve is mainly used in the fluid conveying system in the pipeline. It belongs to a control component. For example, when fluid is transported, the direction and speed of flow need to be controlled by valves. In addition, the valve can also be used for shunting, stopping fluid delivery, backflow or shunting. There are many kinds of valve control methods, such as manual valve, electric valve, hydraulic valve, pneumatic valve, turbine valve, solenoid valve, electro-hydraulic valve, pneumatic valve, straight tooth valve and so on. However, the valve also needs to be cleaned and maintained frequently when in use, otherwise the service life will not be long.
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