PLASTIC PALL RINGS
Plastic materials for the production of packings for towers have recently been used in many application fields in which formerly were restricted to metals and ceramic materials.
Selection of plastic materials depends on chemical resistance, temperature stability and mechanical strength. Polypropylene has good resistance to chemicals at temperatures up to more than 100 deg.C, polypropylene is superior to polyethylene in most fields.
The basic property of Polypropylene PP - Density: 920kg/m3
Types used: Operational temperature range:
Polypropylene LTHA: up to +110 deg.C
Polypropylene glass-fiber reinforced: up to + 140 deg.C
Polypropylene alkali-proof: up to +110 deg.C
Cold-resistant : to -10 deg.C (depending on the type)
Resistant to acids like hydrochloric acid and sulfuric acid bases like caustic soda solution and causti- potash solution salt solutions like sodium chloride, ammonium chloride alcohols, ketones such as methanol, ethanol, acetone-organic acids like formic acid, acetic acid
No resistant to: strong oxidizing agents such as halogens like fluorine, chlorine, bromine halogenated hydrocarbons aromatic hydrocarbons
As to the resistance, the respective concentrations and temperatures are to be observed.
37dia x 33mm lenght
140 to 150
90 to 110