PFA PALL RING, FEP PALL RING, PVDF pall ring, ETFE pall ring, PTFE Pall Ring
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PP,PVC,CPVC,FEP,PVDF,ETFE,PTFE,PEEK pall ring
PVDF is a specialty plastic material in the fluoropolymer family; it is used generally in applications requiring the highest purity, strength, and resistance to solvents, acids, bases and heat and low smoke generation during a fire event. Compared to other fluoropolymers, it has an easier melt process because of its relatively low melting point of around 177 °C. PVDF pall ring has better performance than PP pall ring, or PVC pall ring, or CPVC pall ring.
Ethylene tetrafluoroethylene, ETFE, a fluorine based plastic, was designed to have high corrosion resistance and strength over a wide temperature range. ETFE is a polymer, and its systematic name is poly(ethylene-co-tetrafluoroethylene). ETFE has a very high melting temperature, excellent chemical, electrical and high energy radiation resistance properties.
⊕Specification
Please see the specification for PTFE Pall ring in the following:
| Item |
Size |
Bulk density (kg / m3) |
Filling number |
Specific surface area(M2/M3) |
Voidage rate |
| 1 |
f20*2*20 |
550 |
125000 |
267 |
0.928 |
| 2 |
f25*2*25 |
450 |
60000 |
219 |
0.934 |
| 3 |
f29*2*29 |
400 |
35000 |
193 |
0.936 |
| 4 |
f38*2.5*38 |
370 |
15800 |
148 |
0.94 |
| 5 |
f40*2*40 |
350 |
15100 |
138 |
0.942 |
| 6 |
f42*3*42 |
550 |
14500 |
132 |
0.943 |
| 7 |
f50*2*50 |
250 |
6800 |
108 |
0.945 |
| 8 |
f50*3*50 |
350 |
6800 |
108 |
0.945 |
| 9 |
f50*4*50 |
450 |
6800 |
108 |
0.945 |
| 10 |
f50*5*50 |
580 |
6800 |
108 |
0.945 |
| 11 |
f65*3*65 |
300 |
4600 |
84 |
0.948 |
| 12 |
f65*5*65 |
500 |
4600 |
84 |
0.948 |
| 13 |
f76*4*76 |
460 |
3000 |
72 |
0.95 |
PTFE is a fluorocarbon solid, as it is a high-molecular-weight compound consisting wholly of carbon and fluorine. PTFE is hydrophobic: neither water nor water-containing substances wet PTFE, as fluorocarbons demonstrate mitigated London dispersion forces due to the high electronegativity of fluorine. PTFE has one of the lowest coefficients of friction against any solid.
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