How to prolong the service life of lining fluorine pneumatic valve

fluorine plastic lining corrosion pneumatic valve is ptfe resin ( Or profiles processed) Using the mold ( Or Mosaic) Method in steel or iron pneumatic valve of pressure on the wall or the outer surface of the pneumatic valve internal parts, using its unique performance of strong resistance to corrosion medium pneumatic valve made into all kinds of pneumatic valves and pressure containers.
ptfe, commonly known as 'plastics king' is Dupout by the United States. LTD in years, first developed in industrialized production, from the perspective of industrial application has established history, and truly to be widely used in pneumatic valves in the industry is not a long time.
in corrosion resistant material, ptfe has incomparable excellent performance, in addition to the molten metal, the element fluorine and aromatic hydrocarbons, in various concentration of hydrochloric acid, sulfuric acid, nitric acid and aqua regia, concentrated and dilute acid, organic acids, strong oxidizer alternation, alkali and various kinds of organic reagent are in over sexual response, ptfe lining in pneumatic valve lining, ptfe material strength low both overcome the shortcomings, and solved the pneumatic valve subject material corrosion resistance is poor the shortcomings of high cost. Additionally ptfe besides excellent chemical stability, its anti-fouling, anti adhesion, dynamic and static friction coefficient values, antifriction performance good, use it as a pneumatic valve opening and closing of the seal, to reduce the friction between the sealing surface, reduce the pneumatic valve, operating torque and improve the service life of the product, its use range can also be extended to the food and pharmaceutical industry.
fluorine pneumatic valve and anticorrosive pneumatic valve, it is usually the bad working environment, not poisonous and harmful chemical substances, is strong corrosive of all kinds of acid and alkali or organic solvent, improper use will produce great economic losses and serious consequences. The correct use and maintenance of the pneumatic valve can prolong the service life of lining fluorine pneumatic valves, how on earth do details which can effectively protect it?
and before use, carefully read the lining fluorine pneumatic valve operating instructions.
, according to the nameplate, or specified in the instructions for pressure, temperature, working medium within the scope of use.
, when used to prevent fluorine-butterfly pneumatic valves because of temperature change to produce big pipe stress, try to reduce the temperature change, and increase u-shaped expansion joint in pneumatic valve before and after.
open and close, it is prohibited to use leverage fluorine-butterfly pneumatic valve, observe fluorine-butterfly pneumatic valve open/close position and limit device, after opening and closing in place, don't force torque closed, avoid fluorine plastic seal face premature failure.
and unstable for some medium and easy decomposition ( As some medium decomposition can cause volume expansion) leading to higher working pressure is not normal Pneumatic valve damage or leakage causes, measures should be taken to eliminate or restrict decomposition of instability caused by factors. Should be considered while selecting a pneumatic valve, medium easy decomposition may cause unstable working condition of the change and can choose to have automatic lining fluorine pneumatic valve pressure relief device.
, for toxic, flammable, explosive, corrosive medium of the lining fluorine pneumatic valve in the pipeline, it is strictly prohibited to bring pressure in a state of change of packing. Although fluorine-butterfly pneumatic valve sealing function in the design, but also is not recommended under pressure in a state of change of packing.
, with spontaneous combustion medium pipeline, to take measures to ensure that the environment temperature and the working condition of temperature shall not exceed the medium point of spontaneous combustion, prevent by sunlight or external risks when the fire broke out.
applicable medium: various concentration of acid and alkali salt and some organic solvents.
characteristics: it is now the world is the most ideal anticorrosion material, has been widely used in large rotational molding equipment and pipe lining.