Glass-lined discharge valve overview
Glass-lined discharge valve equipment is a high silicon content of glass enamel. Through the 900 ℃ high temperature coated metal tire made. It has good mechanical properties and corrosion resistance, to prevent the media and metal ions replace the role of pollution products, and the surface smooth, wear-resistant, a certain degree of thermal stability. In chemical, petroleum, metallurgy, pharmaceuticals, pesticides, fuels, food processing and other industries widely used.
Glass-lined discharge valve main equipment performance
â‘ , corrosion resistance
1, resistant to the general inorganic acid, organic acid weak alkaline solution (P≤60 ℃ Ph≤12) and organic media.
2, in hydrochloric acid, nitric acid, water and other corrosive medium than stainless steel.
3, non-use of fluoride-containing ionic liquids (such as HF, etc.) can not use strong alkali and phosphoric acid (temperature> 150 ℃, concentration> 30%)
②, heat resistance, allowed to use between -30 ℃ to +240 ℃ (temperature rapid change less than 120 ℃)
â‘¢, with a smooth surface. Not easy to bond materials, easy to clean.
â‘£, good insulation: good glass frit insulation, thick 1mm glass under the high voltage of 2000 volts will not be breakdown and conductive.
⑤, impact resistance: low impact resistance of 2500 g / cm, and therefore should be used to avoid hard impact.
â‘¥, pressure: 0.6MPa
Glass lined discharge valve maintenance and installation of the use of precautions
1, Where in the decoration and ceramic surface contact with the place must be asbestos or PTFE sheets and other cushions. Tools can not be used with the impact or friction porcelain, but can not shovel with metal tools.
2, in the confinement screws are four weeks to wait for equal force, to prevent porcelain surface uneven force split porcelain. The discharge valve screw should always maintain lubrication to prevent rust.
3, through the medium can only be liquid, ranging from hard particles mixed with liquid to prevent porcelain surface fluff or blockage, and open failure and so on
4, the installation should pay attention to the various departments of the screw force balance, lifting (activities) is flexible.
5, all parts of the enamel surface seals should maintain the center position. Even pressure to prevent leakage.
6, if found to be leaky, immediately check the sealing device is correct, can not use iron bars, rod handle hard board tight, so as not to damage the parts.
7, when the material is obstructed, the prohibition of the use of metal rods or hard tools to clear.
8, should try to avoid the alternating acid-base medium (in addition to neutralization reaction medium), so as not to shorten the life.
9, according to the media performance and life, should always check the top of the valve body PTFE ring and orifice Department of tetrafluoroethylene sheet. If found to be damaged should be replaced and re-used.
10, if the slurry valve is found damaged porcelain should be immediately deactivated. Available special paint repair the affected area, or entrust the relevant production units to do the first enamel.
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