Plastic pall ring random tower packings have recently been used in many application fields which formerly were restricted to metals and ceramic materials.The application fields of the individual plastic materials are determined by chemical resistance, temperature stability and mechanical strength. Polypropylene is the most current thermoplastic in the production of tower packings. Due to its good resistance to chemicals at temperatures up to more than 100℃, 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℃
Polypropylene glass-fiber reinforced:up to + 140℃
Polypropylene alkaliproof:up to +110℃
Several special types on request
Cold-resistant : to -10℃ (depending on the type)
Resistant to :acids like hydrochloric acid and sulfuric acid bases like caustic soda solution and caustic potash solution salt solutions like sodium chloride, ammonium chloride alcohols, ketones like methanol, ethanol, acetone org. acids like formic acid, acetic acid
Not resistant to : strong oxidizing agents like oleum halogens like fluorine, chlorine, bromine halogenated hydrocarbons aromatic hydrocarbons
As to the resistance, the respective concentrations and temperatures are to be observed.
Geometric Parameters
|
D×H×δ
|
Specific area m2/m3
|
Void rate
ε %
|
Bulk number
g/m3
|
Package density
(kg/m3)
|
F factor m-1
|
|
16×16×1
|
188
|
0.91
|
170000
|
85
|
275
|
|
25×25×1.2
|
175
|
0.90
|
53500
|
69
|
239
|
|
38×38×1.4
|
115
|
0.89
|
15800
|
63
|
220
|
|
50×50×1.5
|
93
|
0.90
|
6500
|
52
|
127
|
|
76×76×2.6
|
73.2
|
0.92
|
1927
|
41
|
94
|
|
100×100×3
|
52.8
|
0.94
|
1000
|
32
|
82
|
※Other specifications are available upon request.
Plastic tower packings are made of materials like PE, PP, RPP, PVC, CPVC, PVDF, etc.
