0755-23737136
0755-23737136
JVF3-40 vacuum pump oil Excellent radiation stability
Product introduction
JVF vacuum pump oil is a linear perfluoropolyether polymer based on carbon, fluorine and oxygen. These three elements play an important role in this product as high-performance vacuum pump oil in vacuum pump. The thermal stability of JVF is different from that of the traditional vacuum pump because it contains hydrogen
CF3-[(O-CF-CF2)m-(O-CF2)n]O-CF3
|
CF3
Product features
*Low saturated vapor pressure * Good chemical inertness
*Excellent thermal stability * Good lubrication performance
*No flash point or ignition point * Safe and non-toxic
* Good solvent resistance * Low surface tension
*Excellent dielectric properties *Excellent radiation stability * No pollution to the environment
*Excellent compatibility with metals, plastics and elastomers
Performance parameter
|
Brand |
JVF2-06 | JVF2-14 | JVF3-16 | JVF3-25 |
JVF3-40 |
JVF4-15 |
|
Molecularweight(AMU) |
1,860 | 2,500 | 2,800 | 3,300 |
4300 |
6,500 |
|
Kinematic viscosity (ASTM D445) @ 20℃ (cSt) |
65 | 143 | 160 | 243 |
489 |
1480 |
|
viscosity index (ASTM D2270) |
72 | 95 | 115 | 100 |
|
|
|
Pour point (ASTM D97) (℃) |
-52 | -45 | -45 | -30 |
-30 |
-27 |
|
Steam pressure @ 25℃ (torr) @ 100℃ (torr) |
7x10-7 3x10-3 |
1x10-7 2x10-4 |
2x10-6 2x10-4 |
5x10-8 5x10-5 |
|
|
|
Heat of evaporation200℃ (cal/g) |
11 | 8 | 8 | 7 |
7 |
5 |
|
Proportion (ASTM D891) 20℃ (g/cm3) |
1.88 | 1.89 | 1.89 | 1.91 |
1.91 |
1.92 |
|
surface tension (dyne/cm) |
21 | 22 | 22 | 22 |
24 |
24 |
|
Evaporation loss 22hrs @ 120℃ (% by wt) * 22hrs @149 ℃ |
3 10 |
2 5 |
1 3 |
0.5 1 |
|
|
|
Ultimate total pressure (torr) |
1.7x10-3 | 1.4x10-3 | 2.4x10-3 | 1.2x10-3 |
|
|
|
Oil consumption rate (cm3/hr) |
0.4 | 0.6 | 0.5 | 0.7 |
|
|
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