
Christian Maier GmbH & Co. KG
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Operating manual Series DP_en –Part-S- Version 9 – 27.05.2020
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S
Section 3: Thermal oil temperature < 160 °C
Material groups:
1.
Thermal oil consisting of hydrocarbons (mineral base, group 1)
2.
Thermal oil made of isomer mixture (synthetic base – group 2)
Only upon request:
Thermal oil consisting of uniform material (synthetic base – group 3)
General:
clear, no sediments
Filtration:
particle size 1969µin max. 3937µin
Steam pressure*:
The steam pressure must not exceed 7,25 psi abs at maximum operating
temperature.
*: Steam pressure is the pressure at which a liquid becomes gaseous. The steam pressure depends on
the temperature of the liquid.
Specific heat
conductivity:
For maximum heat dissipation in the sealing gap, the value should be as
good as possible.
Kinematic
viscosity:
For excellent flow in the system and lubrication effect in the rotary joint, the
following values should be attained:
- as low as possible at minimum application temperature
- as high as possible at maximum application temperature.
Section 4: Hydraulic oil with temperature up to max. 80 °C
We recommend to use Hydraulic oil acc.to DIN 51524 or better with the purity class 21/19/16 acc. to
ISO 4406/99 .It should be noted, that transport and storage has a strong influence on the oil purity. Any
way, you must accurately filter the fluid when fill-ing, to ensure the oil purity required.
Particle size 4µm
Particle size 6µm
Particle size 14µm
ISO Code Particle
quantity / 100ml
ISO Code Particle
quantity / 100ml
ISO Code Particle
quantity / 100ml
from
to
from
to
from
to
21
1.000.000 2.000.000
19
260.000
500.000
16
32.000
64.000
Section 5: Compressed air with temperature up to max. 120 °C
Air food grade (dry and oil-free Compressed air quality acc.to DIN ISO 8573-1
Particle quantity /m³
Particle size d (µm)
Residual oil content
0,1 < d <=0,5
0,5 < d <=1
1 <d <=5
°C
(mg/m³)
100.000
1.000
10
<= +3
0,01