Summary of glass lining feeding pneumatic valve and maintenance

glass lining feeding pneumatic valve overview
glass lining feeding pneumatic valve equipment is high silicon content in the vitreous glaze. Through about ℃ high temperature coating on metal bond. It has good mechanical properties and corrosion resistance, and can prevent the medium and the metal ions affect pollution products instead of role, and the surface is bright and clean, wear-resisting, there is a certain thermal stability. In chemical, petroleum, metallurgy, food processing, pharmaceutical, pesticide, fuel and other industries widely used.
glass lining feeding pneumatic valve main performance:
(1),
corrosion resistance, general inorganic acid, organic acid, weak alkali ( Ph值P≤℃≤) And agent of organic medium.
, the strength of hydrochloric acid, nitric acid, water and other corrosive medium is better than stainless steel.
, it is forbidden to use fluoride ion liquid ( Such as HF) Also can't use strong alkali and phosphate ( > temperature > ℃, the concentration ﹪)
(2), heat resistance, allowing the in - Using (between ℃ to + ℃ Heat-resistant radically less than ℃)
(3), and has a smooth surface. Difficult to binding material, easy to clean.
(4), good insulation, glass material has good insulation, mm thick glass under the volts breakdown and won't be conductive.
(5), impact resistance, impact resistance performance for g/cm smaller, and therefore should be avoided when using hard objects.
6, compression:. MPa
glass lining equipment product introduction
pneumatic valve structure is shown in figure, applicable to the design pressure P or less. MPa, the working temperature of t ℃ or less on the glass lining type feeding pneumatic valve
the pneumatic valve should comply with the HG - technical specifications - The provisions of the. The pneumatic valve and phosphorus and phosphorus light medium carbon, hydrogen fluoride, hydrochloric acid, sodium hydroxide and potassium hydroxide outside all kinds of acid, alkali, salt solution and organic solvents.
glass lining feeding pneumatic valve maintenance and installation to use notice:
( ） All contact with the porcelain face when decorate place must use asbestos or four fluorine soft mat, etc. Use tools cannot with porcelain face impact or friction, more can't use metal tools shovel.
（ ） Around when fastening screws to tightening force, such as to prevent crack porcelain porcelain face stress unevenness. Feeding pneumatic valve screw should often maintain lubrication, prevent rust.
（ ） Through the liquid medium can be, can not have hard particles into the liquid inside, prevent the enamel surface fuzz or congestion, and open failure and so on.
（ ） The screw force in when installation should pay attention to all balance, lift ( Activities) Whether or not flexible.
（ ） In various parts of the enamel surface seal center position shall be maintained. Uniform pressure, to prevent leakage.
（ ） If found to have leaks, when using, should immediately check whether the sealing device is relevant, cannot turn the handwheel hard with iron bars, stick tightly, so as not to damage parts.
（ ） Discharge when blocking, can use a metal rod or hard tools dredge, metal rod or hard tools shall not be used.
（ ） Avoid acid and alkali medium used interchangeably ( In addition to the neutralization reaction medium) To avoid shorten life.
（ ） According to the dielectric properties and lifetime, often should check the neck four fluorine pneumatic valve body sealing ring and orifice of four fluorine chips. If found damaged should be replaced in a timely manner to use again.
（ ） If found damaged should immediately stop using porcelain face. Can use special coating repair the affected or entrust relevant production units to now do the enamel.