fluorine lining gate valve

Lining material of fluorine-lined globe valve

by:Lianke Valve     2022-05-27
Fluorine lined globe valve - Lining material Polyperfluoroethylene FEP (F46) Applicable medium: any organic solvent or reagent, dilute or concentrated inorganic acid, alkali, ketone, aromatic hydrocarbon, chlorinated hydrocarbon, etc. Operating temperature: -85~150 Features: Mechanical, electrical properties and chemical stability are basically the same as F4, but the outstanding advantages are high dynamic impact toughness, excellent weather resistance and radiation. Polytrifluoroethylene PCTEF (F3) Applicable medium: various organic solvents, inorganic corrosive liquids (oxidizing acids) Operating temperature: -195~120 Features: heat resistance, electrical properties and chemical stability are second only to F4, mechanical Strength, creep performance and hardness are better than F4 Polypropylene: RPP Applicable medium: aqueous solution of inorganic salts, inorganic acids, dilute or concentrated solutions of alkalis. Operating temperature: -14~80 Features: One of the lightest plastics, its yield, tensile and compressive strength, and hardness are better than low-pressure polyethylene, with outstanding rigidity, good heat resistance, easy to form, and cheap. After modification, it has dynamic impact, fluidity, and bending elasticity. Polyvinyl chloride: rigid) PVC Applicable medium: water resistance, concentrated alkali, non-oxidizing acid, chain hydrocarbon, oil and ozone, etc. Use temperature: 0-55 Features: high mechanical strength, excellent chemical stability and dielectric properties, good oil resistance and aging resistance, easy welding and bonding, low price. Polytetrachloroethylene PTFE (F4) Use medium: strong acid, strong alkali, strong oxidant, etc. Use temperature: -200~180 Features: Excellent chemical stability, high heat resistance, cold resistance, low friction coefficient, is an excellent self-lubricating material, but has low mechanical properties, poor fluidity, thermal expansion Big. Polyvinylidene chloride PVDF (F2) Use medium: resistant to most chemicals and solvents, use temperature: -70~100 Features: tensile strength and compressive strength are better than F4, bending resistance, weather resistance, radiation resistance. Light resistance and aging, etc., the biggest feature is good toughness and easy molding. Polyolefin: PO Applicable medium: various concentrations of acid and alkali salts and some organic solvents. Operating temperature: -58~80 Features: It is the most ideal anti-corrosion material in the world at present, and has been widely used in the lining of large-scale equipment and pipe fittings for rotational molding.
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