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RUI PFPE Vacuum Pump Oils

Description

RUI PFPE Vacuum Pump Oils M Grades are ideal for the use in vacuum pumps as sealing & lubricating fluid and working fluids especially when pumping strongly oxidative substances like oxygen, ozone or nitric oxides as well as highly reactive substances like halogens and hydrogen halides.

RUI PFPE Oils will not polymerise under the influence of high energy radiation.

RUI M PFPE Vacuum Pump Oils can replace Fomblin PFPE Vacuum Pump Oils. RUI M 606 can replace Fomblin® Y LVAC 06/6, RUI M 2506 is widely used as repalcement of Fomblin® Y LVAC 25/6.

RUI PFPE Oils have following properties:

v Chemical inertness   v High thermal stability
v Good lubricant properties v No flash or fire point
v Low toxicity v Good aqueous and non-aqueous solvent resistance
v High dielectric properties v Low surface tension
v Low surface tension v Environmentally acceptable
v Excellent compatibility with metalplastice elastomers

Typical Property RUI(PFPE)

 RUI(PFPE) M Grades


Unit

606

1406

1606

2506

Average molecular weight

a.m.u.

1800

2500

2700

3300

Specific gravity(20℃,68℉)

gcm3

1.88

1.89

1.89

1.90

Kinematic Viscosity

cSt

64

148

168

276

Vapor pressure


      @25

torr

8×10-7

1×10-7

2×10-6

6×10-8

     @100

torr

3×10-3

2×10-4

2×10-4

6×10-5

Pour Point

-50

-45

-45

-35

Heat of vaporization

cal/g

11

8

8

7

        200℃)






Surface tension
⊙22hrs,149℃(1406,1606,2506)

dyne/cm

21

22

22

22

Evaporation loss

%by wt.
22hrs,120(606)

2.8

2.6

3.9

0.6

Ultimate total pressure

torr

1.7×10-3

1.4×10-3

2.4×10-3

1.2×10-3

Specific oil consumption

         cm3/hr

0.4

0.6

0.5

0.7

Typical

RUI M


606

1406

1606

2506

Rotary pumps-sealing & llubricant fluid


Turbomolecular pumps-lubrication




Roots pumps-lubrication



Diffusion pumps-working fluid




Caution: if perfluoropolyethers be decomposed, it will release toxic and corrosive gases: hydrogen fluoride HF, carbonyl difluoride COF2 among others. For this reason open fires must be avoided in the workspace where PFPE is being used. Do not smoke in the workspaces where PFPE is being used.