Bentone B40 MF - Oil Grades

11
Bentone B40 MF/B45-2 MF
General
1.8
The bur
which is compliant with standar
The bur
higher viscosity
The maximum viscosity at which the bur
tested is 120 mm ²/s at 20
corr
° C, which is standar
vary depending on the oil grade. Another way to define
the type of oil the bur
such a natur
at the temperatur
point.
!
Altered structure of the oil can give rise to altered viscosity, pumpabilty and ignita-
bility. This can cause the pump, valves and nozzles to get blocked
1.7 Oil grades
The burner is tested and approved for pure rapeseed oil that complies with
standard DIN 51605:2010-10.
The burner is designed to be able to burn oils with a higher viscosity, both
of biological and fossil origin. The maximum viscosity with which the burner
is tested is 75 mm²/s, 0–130°c. Another way of defining which kind of oil
the burner can handle is that the oil must be of such a nature that it can be
pumped by the burner pump at the temperature the oil has at the point of
access to the pump.
The burner, without the pump, is designed to withstand the more corrosive
environment often created by oils of biological origin.
The Suntec E1069 pump is NOT designed for aggressive oils.
The burner pump has a service life of approx. 3–5 years if the oil is of a grade
that complies with standard DIN 51605:2010-10. If oil of a different grade
is used, especially if the oil contains contaminants such as particles, press
residue, metal swarf etc., or has chemical aggression, the pump may be
expected to have a significantly shorter service life.
The pump is considered to be a wearing part and is not covered by the
warranty.
Pressure at the pump inlet must be -0.30 to max 2.0 bar. If there is a noise
from the pump, the oil is not pumpable at the current temperature or flow.
A transport oil pump combined with preheater is then needed to supply the
burner’s pump with oil for trouble-free operation.
The oil distribution system must be designed with the required equipment
such as filters, transport oil pump, preheater and reduction valve to provide
trouble -free operation. Max filter size is 120 µm and the oil may need to be
filtered in several steps.
In the case of a standstill in which the oil can be expected to change
structure, for example aging or phase transitions due to temperature and
storage, the burner must be flushed with fuel oil after the standstill. This
procedure ensures a good start after standstill.