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Hot Sale Pp Hollow Floating Ball For Mass Transfer - Buy Pp Hollow Floating Ball,Pp Hollow Ball,Hollow Floating Ball Product on
Plastic hollow floatation ball is made from heat resistant and chemical corrosion resistant plastics, including polyethylene (PE), polypropylene (PP), reinforced polypropylene (RPP), polyvinyl chloride (PVC), chloridized polyvinyl chloride (CPVC) and polyvinylidene fluoride (PVDF). It has features such as high free volume, low pressure drop, low mass-transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high mass transfer efficiency and so on, and the application temperature in media ranges from 60to 150. For these reasons it is widely used in the packing towers in petroleum industry, chemical industry, alkali-Chloride industry, coal gas industry and environmental protection, etc
PP(Polypropylene) Balls
plastic balls are made from Nylon, POM, PE, PTFE, PP, HDPE, or ABS, all of them could be customized.
Polypropylene Ballsare ideal for light load bearings and flow control applications. Often used in the construction of office furniture and medical equipment because of their quiet operation. Plastic balls are often used extensively in pharmaceutical, food and chemical production.
Characteristic
Low friction
Virtually no lubrication requirement
Light weight
Resistant to corrosion and abrasion
Impact resistance
Application
Bearings, Furniture drawer slides, Medical, Flow control, Valves, Spray pump, Pumps, Float, Flow indicators
Technical parameter:
| Diameter | Piece weight | Number/ft2 | Number/Sqm |
| 10 | 0.2 | 1076 | 11600 |
| 20 | 1.0 | 270 | 2900 |
| 25 | 1.5 | 172 | 1850 |
| 38 | 4.5 | 74 | 800 |
| 45 | 7.0 | 53 | 570 |
| 50 | 8.0 | 43 | 465 |
| 55 | 10.5 | 35 | 380 |
| 70 | 16.0 | 22 | 235 |
| 100 | 40 | 10 | 116 |
| 150 | 100 | 4.8 | 51.5 |
Suitable material:
| Technical name | Commerical name | Abbreviation | Molecular formula |
| High Density Polyethylene | High Density Polyethylene | HDPE | (C2H4)n |
| Low Density Polyethylene | Low Density Polyethylene | LDPE | (C2H4)n |
| Poly(propene) | Poly(propene) | PP | (C2H6)n |
| Polytetrafluoroethylene | Teflon | PTFE | (CF2-CF2)n |
| Polyvinylidene fluoride | Kynar,Hylar,Sygef | PVDF | (C2H2F2)n |
Operation temperature:
| Material | Working Condition degree | Typlical application | Note |
| HDPE | 80 | Demineralised water and Chromic acid | For outdoor application |
| LDPE | 80 | Demineralised water and Chromic acid | For outdoor application |
| PVDF | 140 | Resistance to many agreesive material | For high temperature |
| PTFE | 250 | high temperature applications | For high temperature |
| PP | 110 | Metal treatment industry | Good corrosion assistance |
Different material Physical/mechanical/thermal/electric/magnetic properties:
| Name | PE ball | PP ball | PVDF ball | PTFE ball |
| Density.g/cm3 | 0.92 (L(,0.97(H) | 0.87 | 1.77 | 2.16 |
| Young's modulus | 250/950 | 1285 | 1900 | 670 |
| Friction coeffiicient | 0.38 | 0.30 | 0.32 | 0.12 |
| water absorption | 0.013 | 0.10 | 0.04 | 0.02 |
| Coefficient of linear thermal expansion | 150 | 135 | 130 | 145 |
| Volume resistrivity | >10‾15 | >10‾14 | >10‾14 | >10¯15 |
| Relative magnetic permeablity | <-1 | <-1 | <-1 | <-1 |
| Thermal conductivity | 0.32(L)/046(H) | 0.19 | 0.19 | 0.23 |
Mainly application:
| Name | Application |
| pp | Polypropylene ball are resisting into not concentrated acids,alkalis,alcohols,oils,grease and most inorganic compounds.Fair assistance in armatic hydrocarbons, they are not resistant in contact with halogens.They provide corrosive phenomena even in presence of concentrated acids and oxidizing agents at high temperature. |
| PE | Excellent corrosion resistance in contact with acids, alcohols,basis,esters,petrol,grease and oils.Fairish resistance to aliphatic and aromatic hydrocarbons,mineral, oils,oxidizing. |
| PVDF | Excellent corrosion resistance in contact with inorganic acids and salts,organic acids,alcohols,aliphatic and aromatic hydrocarbons,halogens except fluorines,oxidizing environments. They are not suitable against nearly pure strong acids and basis,liquid alcaline metals, strong polar solvents |
| PTFE | Teflon balls provide exceptional corrosion resistance properties,they are resisting even in contact with industrial acids or caustic substances. They suffer corrosive phenomeza only against molten alkaline metals and fluorides at elevated temperature. |
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