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The definition and cleaning steps of Liaoyang valve
- Categories:Industry Knowledge
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- Time of issue:2016-01-14 14:34
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(Summary description)DefinitionofLiaoyangValve Avalveisadeviceusedtocontrolthedirection,pressure,andflowoffluidinafluidsystem.Itisadevicethatallowsthemedium(liquid,gas,powder)inthepipingandequipmenttofloworstopandcancontr
The definition and cleaning steps of Liaoyang valve
(Summary description)DefinitionofLiaoyangValve Avalveisadeviceusedtocontrolthedirection,pressure,andflowoffluidinafluidsystem.Itisadevicethatallowsthemedium(liquid,gas,powder)inthepipingandequipmenttofloworstopandcancontr
- Categories:Industry Knowledge
- Author:
- Origin:
- Time of issue:2016-01-14 14:34
- Views:
Information
Definition of Liaoyang Valve
A valve is a device used to control the direction, pressure, and flow of fluid in a fluid system. It is a device that allows the medium (liquid, gas, powder) in the piping and equipment to flow or stop and can control its flow.
The valve is a control component in the pipeline fluid conveying system. It is used to change the section of the passage and the direction of the medium flow. It has the functions of diversion, cut-off, throttling, check, diversion or overflow pressure relief. Valves used for fluid control, from the simplest shut-off valve to the various valves used in extremely complex automatic control systems, have a wide range of varieties and specifications. The nominal diameter of the valve ranges from extremely small instrument valves to large diameters up to 10m. Valves for industrial pipelines. It can be used to control the flow of various types of fluids such as water, steam, oil, gas, mud, various corrosive media, liquid metals and radioactive fluids. The working pressure of the valve can be from 0.0013MPa to 1000MPa ultra-high pressure, and the working temperature is from 0.0013MPa to 1000MPa. -270℃ ultra-low temperature to 1430℃ high temperature.
The valve can be controlled by a variety of transmission methods, such as manual, electric, hydraulic, pneumatic, turbine, electromagnetic, electromagnetic hydraulic, electro-hydraulic, pneumatic-hydraulic, spur gear, bevel gear drive, etc.; it can be driven by pressure and temperature. Under the action of other forms of sensing signals, it will act according to the predetermined requirements, or simply open or close without relying on the sensing signals. The valve relies on the drive or automatic mechanism to make the opening and closing parts lift, slide, swing or rotate Movement, thereby changing the size of the flow channel area to achieve its control function.
Cleaning steps of Liaoyang valve
The valve parts must go through the following processes before assembly:
1. According to the processing requirements, some parts need to be polished, and the surface must not have processing burrs, etc.;
2. All parts are degreased;
3. Pickling passivation is carried out after degreasing, and the cleaning agent does not contain phosphorus;
4. Rinse with pure water after pickling and purification, and there should be no residues of chemicals. This step is omitted for carbon steel parts;
5. Use non-woven cloth to dry the parts one by one, and do not leave the surface of the parts such as wire bristles, or blow dry with clean nitrogen;
6. Use non-woven fabric or precision filter paper dipped in analytical pure alcohol to wipe each part until there is no dirty color.
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