PFPE Vacuum Pump Oils

PFPE Vacuum Pump Oils Topda K-L Grades are perfluorinated polyether inert fluids with only carbon (C), fluorine(F), and oxygen(O) atoms on the molecular chain. They are ideal for use in vacuum pumps as sealing & lubricating fluid and working fluids especially in the systems which are exposed to strongly oxidative substances like oxygen, ozone or nitric oxides as well as highly reactive substances like halogens and hydrogen halides. Because of their high stability and safety, especially the high reliability of working under particularly harsh conditions, no working medium can be comparable to perfluoropolyether oil in such harsh environment.

Properties	Units	K-L 606	K-L 1406	K-L 1606	K-L 2506
Equivalent Product		Fomblin Y LVAC 06/6	Fomblin Y LVAC 14/6	Fomblin Y LVAC 16/6	Fomblin Y LVAC 25/6
Average Molecular Weight	a.m.u.	2,400	3,500	4,300	4,600
Density at 20°C	g/cm3	1.88	1.89	1.89	1.90
at 50°C	g/cm3	1.82	1.83	1.83	1.84
at 100°C	g/cm3	1.73	1.74	1.74	1.75
at 200°C	g/cm3	1.54	1.55	1.55	1.56
Viscosity at 20°C	mm2/s	62	142	175	261
at 50°C	mm2/s	16	32	37	53
at 100°C	mm2/s	4.4	7.2	8	11
at 200°C	mm2/s	1.2	1.7	1.8	2.2
Viscosity Index		71	97	110	113
Vapor Pressure at 20°C	torr	4×10-7	2×10-7	5×10-9	1×10-7
at 50°C	torr	1×10-5	3×10-6	2×10-7	1×10-6
at 100°C	torr	1×10-3	1×10-4	2×10-5	3×10-5
at 200°C	torr	5×10-1	1×10-2	1×10-2	2×10-3
Pour Point	°C	-60	-54	-40	-48
Boiling Range, 10%	°C	160	200	210	200
Boiling Range, 90%	°C	220	280	280	300
Heat of vaporization at 150~250°C	cal/g	9	7	7	6
Volatility (149°C/22hr)	%	6	1	0.1	0.5
(204°C/22hr)	%	35	3	8.9	Nil
Surface Tension at 20°C	dyne/cm	17	18	18	19

PFPE Vacuum Pump Oil Topda K-H Grades are suggested for applications requiring the highest quality vacuum such as in scanning electron and transmission microscopes, mass spectrometers, particle accelerators, ion implantation, plasma and vapor deposition processes. In addition, it is suggested for pumps handling reactive gases such as UF6, F2, oxygen, ozone and tritium, as the fluid can be used in direct contact with these gases without reaction and fluid degradation.

Properties	Units	K-H 1808	K-H 2509	K-H 4009	K-H 14013
Equivalent Product					Fomblin Y HVAC 140/13
Average Molecular Weight	a.m.u.	2,800	3,400	4,400	7,600
Density at 20°C	g/cm3	1.89	1.90	1.91	1.92
Viscosity at 20°C	cSt	185	285	474	1400
Viscosity Index		120	126	129	140
Pour Point	°C	-45	-41	-38	-30
Refractive Index	(nD20)	1.300	1.301	1.304	1.304
Specific Heat at 20°C	cal/g	0.24	0.24	0.24	0.24
Heat of vaporization at 200°C	cal/g	9	7	7	5
Working Temperature	°C	-45~190	-40~195	-38~200	-30~280