What Is The Operating Temperature Range Of Fluorine-lined Ball Valve?
Lined Ball Valve uses a ball with a circular through hole as the opening and closing part. The ball rotates with the valve stem around the center line of the valve body to open and close the valve. The special molding process is used to make the sealing surface dense and good, and the V-type PTFE packing combination makes the valve achieve zero leakage; the ball and the valve stem are cast as one, eliminating the possibility of the valve stem rushing out of the pressure-bearing part due to pressure changes, fundamentally ensuring safety during use; the full plastic lining process is used to resist strong corrosion of the medium.
Fluorine-lined ball valves are professionally designed to control the opening and closing of various highly corrosive media. They are widely used in petroleum, chemical, dyeing, pesticide, acid and alkali making industries, and are currently the ideal choice for anti-corrosion valves.
The main lining material of fluorine-lined ball valves is fluoroplastic:
Polytetrafluoroethylene FEP (F46)
Applicable media:
Any organic solvent or reagent, dilute or concentrated inorganic acid, alkali, ketone, aromatic hydrocarbon, chlorinated hydrocarbon, etc.
Fluorine-lined ball valve use temperature:
-85~150
Features: Mechanical, electrical properties and chemical stability are basically the same as F4, but the outstanding advantage is dynamic toughness
High, with excellent weather resistance and radiation.
Polytrifluoroethylene PCTEF (F3)
Applicable media edit
Various organic solvents, inorganic corrosive liquids (oxidizing acids)
Use temperature: -195~120
Features: Heat resistance, electrical properties and chemical stability are second only to F4, mechanical strength, creep performance, hardness is better than F4
Polypropylene: RPP
Applicable media: Aqueous solutions of inorganic salts, dilute or concentrated solutions of inorganic acids and alkalis.
Use temperature: -14~80
Features: One of the lightest plastics, its yield, tensile and compressive strength, hardness are better than low-pressure polyethylene, with outstanding rigidity, good heat resistance, easy molding, and low cost. After modification, dynamic impact, fluidity, and bending elasticity.
Polyvinyl chloride: Rigid) PVC
Applicable media: water-resistant, concentrated alkali, non-oxidizing acid, chain hydrocarbon, oil and ozone, etc.
Using temperature: 0-55
Features of fluorine-lined ball valve: high mechanical strength, excellent chemical stability and dielectric properties, good oil resistance and aging resistance, easy to weld
and bond, low price.
Polytetrachloroethylene PTFE (F4)
Using medium: strong acid, strong alkali, strong oxidant, etc.
Using temperature: -200~180
Features: It has excellent chemical stability, high heat resistance, cold resistance, low friction coefficient, and is an excellent self-lubricating material, but has low mechanical properties, poor fluidity, and large thermal expansion.
Polyvinylidene chloride PVDF (F2)
Using medium: resistant to most chemicals and solvents,
Using temperature: -70~100
Features: tensile strength and compression strength are better than F4, resistant to bending, weathering, and radiation. Light-resistant and aging-resistant, the biggest feature is good toughness and easy molding.
Polyolefin: PO
Applicable media: various concentrations of acids, alkalis, salts and certain organic solvents.
Using temperature: -58~80
Features: It is the world's ideal anti-corrosion material, and has been widely used in large-scale rotational molding equipment and pipeline linings