What kind of valve does fluorine lined valve belong to? What are the classifications?

What kind of valve does fluorine lined valve belong to? Presumably, there are still some friends who are not familiar with it. In fact, fluorine lined valves have another name, which is fluorine lined plastic lined corrosion-resistant valves. This is very clear. Fluorine lined valves are valve products lined with corrosion-resistant fluorine plastic. So, what are the classifications of its materials?
There are still quite a few fluorine lined valves classified by material, among which the most commonly used ones are PTFE lined valve The specific details are determined by Fluorine lined valve factory -Lieldo will provide a detailed introduction for everyone.
1. Perfluoroethylene FEP (F46): Suitable for any organic solvent or reagent, dilute or concentrated inorganic acid, base, ketone, aromatic hydrocarbon, chlorinated hydrocarbon, etc. Operating temperature: -85~150. Features: The mechanical, electrical, and chemical stability are basically the same as F4, but the outstanding advantages are high dynamic impact toughness, excellent weather resistance, and radiation resistance.
2. Polytrifluoroethylene PCTEF (F3): Suitable for various organic solvents and inorganic corrosive liquids (oxidizing acids). Operating temperature: -195~120. Characteristics: Heat resistance, electrical performance, and chemical stability are second only to F4, while mechanical strength, creep performance, and hardness are better than F4.
3. Polypropylene RPP: Suitable for aqueous solutions of inorganic salts, dilute or concentrated solutions of inorganic acids and bases. Operating temperature: -14~80. Characteristics: One of the lighter plastics, its yield, tensile and compressive strength, hardness are superior to low-pressure polyethylene, it has outstanding rigidity, good heat resistance, easy molding, and excellent cost. Modified mobility, fluidity, and bending elasticity.
4. Polyvinyl chloride: hard) PVC: suitable for water resistance, concentrated alkali, non oxidizing acids, chain hydrocarbons, oils, and ozone. Operating temperature: 0-55. Features: high mechanical strength, excellent chemical stability and dielectric properties, good oil resistance and anti-aging resistance, easy fusion and bonding, low price.
5. Polytetrafluoroethylene PTFE (F4): Use media: strong acid, strong alkali, strong oxidant, etc. Operating temperature: -200~180. Characteristics: It has chemical stability, high heat and cold resistance, low friction coefficient, and is an excellent self-lubricating material. However, its mechanical properties are low, its flowability is poor, and its thermal expansion is large.
6. Polyvinylidene chloride PVDF (F2): Medium of use: resistant to most chemicals and solvents. Operating temperature: -70~100. Features: The tensile and compressive strength of the product is better than that of F4, and it is resistant to bending, weather, and radiation. It is resistant to light and aging, and its major characteristics are good toughness and easy molding.
7. Polyolefin PO: Suitable for various concentrations of acid-base salts and certain organic solvents. Operating temperature: -58~80. Characteristics: It is currently one of the most ideal anti-corrosion materials in the world and has been widely used for lining large equipment and pipeline components in rotary molding.