JVF3-25 vacuum pump oil no flash point or ignition point

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JVF3-25 vacuum pump oil no flash point or ignition point

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   JV3F-25

JVF3-40

JVF4-15 

Molecularweight(AMU)

1,860    

2500 2800

3,300

4300 6500

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

0.1

5

   

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