high quality hot sale No.3 Dalian seven star diffusion pump oil use for vacuum diffusion pump

Product Overview

Description

No.3 Dalian seven star diffusion pump oil  

 

 

Dalian No.3 seven star diffusion pump oil is a deep dewaxing lubricant, produce by vacuum molecular distillation, aluminum adsorption and film degassing processes,etc. This product has a low vapor pressure and a suitable chemical composition; with the ideal ultimate vacuum degree and fast pumping speed; also with the feature of very high thermal oxidation stability, can work for long time even in poor working condition.

 

No.3 diffusion pump oil can be used as a working fluid for various types of glass and metal diffusion pump, used in high vacuum distillation, vacuum metallurgy, electronics industry and the nuclear industry which has requirements to obtain a high vacuum environment systems.

 

No.3 diffusion pump oil pump can also be used as a working fluid for straight league vacuum pump.

Item	No.3 diffusion pump oil
	Quality index	Typical data
Kinematic viscosity 50°Cmm²/s	60.2-79.8	67.26
Pour point °C not more than	-10	-14
Flash point opening°C not lower than	232	284
Mechanical impurities%	no	no
Moisture content%	no	no
Ash content % not more than	0.007	0.001
Acid value mgKOH/g not more than	0.01	0.006
Ultimate pressure Pa not more than	666.61×10-7	90*10-7
Saturated vapor pressure pa not more than	266.644×10-8	120*10-8
Carbon Residue % not more than	0.12	0.02
Copper corrosion levelnot more than	1	1
Color comparisons		<0.5