Advantages
♦ Excellent fire resistance, ensuring application safety in case of high temperature and contact with open flame
♦ Extremely low freezing point, ensuring easy startup in condition of low temperature
♦ Perfect high temperature stability (stable real solvent), no deterioration in long storage period of 2 years
♦ Good gas/liquid phase anti-rust ability, and anti-corrosion performance for copper, meeting anti-rust requirement for gas and liquid phases
♦ Outstanding lubricity, ensuring lubrication and service life of hydraulic oil pump
♦ A long service life not less than 10,000h under normal operating mode and work conditions
Performance
The product meets the following specifications:
♦ Q/SH PRD122-2008
Applications
♦ Important fire resistant hydraulic media comprehensively used in hydraulic system in conditions of open flame and high temperature
♦ Suitable for hydraulic system requiring fire resistance in such industries as steel, coal mine, light industry, chemical engineering, machining, plastic
processing and so on
♦ Applied temperature range: -50ºC~60ºC; applied pressure: 20MPa
Typical properties
|
Items
|
HFC 4631 water-glycol fire resistant hydraulic fluid
|
|
Grade 40
|
Grade 50
|
|
Appearance
|
Transparent liquid of red
|
|
Viscosity, mm2/s
40ºC-18ºC
|
42.96
923
|
51.2
910
|
|
Viscosity index
|
185
|
230
|
|
Density (20ºC), g/cm3
|
1.082
|
1.080
|
|
Freezing point, ºC
|
<-50
|
<-50
|
|
pH value
|
8.9
|
10.2
|
|
Copper piece corrosion (T2Cu, 50ºC×3h)
|
1a
|
1a
|
|
Foam performance, mL
Foam tendency
Foam stability
|
0
0
|
15
0
|
