MAN B&W S65ME-C8.2-GI-TII, Project Manual

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MAN B&W 8.09
Page 2 of 4
MAN Diesel MAN B&W ME/ME-C/-GI engines 198 48 523.5
Hydraulic control oil cooler
The cooler must be of the plate heat exchanger or
shell and tube type.
The following data is specified in Table 8.09.02:
• Heat dissipation
• Oil flow rate
• Oil outlet temperature
• Maximum oil pressure drop across the cooler
• Cooling water flow rate
• Water inlet temperature
• Maximum water pressure drop across the cooler.
Temperature controlled threeway valve
The valve must act as a control valve, with an ex-
ternal sensor.
The following data is specified in Table 8.09.02:
• Capacity
• Adjustable temperature range
• Maximum pressure drop across the valve.
Hydraulic control oil filter
The filter is to be of the duplex full flow type with
manual change over and manual cleaning or of
the automatic self cleaning type.
A differential pressure gauge is fitted onto the
filter.
The following data is specified in Table 8.09.02:
• Filter capacity
• Maximum pressure drop across the filter
• Filter mesh size (absolute)
• Oil viscosity
• Design temperature.
Off-line hydraulic control oil fine filter / purifier
Shown in Fig. 8.09.01, the off-line fine filter unit or
purifier must be able to treat 15-20% of the total
oil volume per hour.
The fine filter is an off-line filter and removes me-
tallic and non-metallic particles larger than 0,8 μm
as well as water and oxidation
residues . The filter
has a pertaining pump and is to be fitted on the
top of the hydraulic control oil tank.
A suitable fine filter unit is:
Make: CJC, C.C. Jensen A/S, Svendborg,
Denmark - www.cjc.dk.
For oil volume <10,000 litres:
HDU 27/-MZ-Z with a pump flow of 15-20% of the
total oil volume per hour.
For oil volume >10,000 litres:
HDU 27/-GP-DZ with a pump flow of 15-20% of
the total oil volume per hour.
Temperature indicator
The temperature indicator is to be of the liquid
straight type.
Pressure indicator
The pressure indicator is to be of the dial type.
Level alarm
The hydraulic control oil tank has to have level
alarms for high and low oil level.
Piping
The pipes can be made of mild steel.
The design oil pressure is to be 10 bar.
The return pipes are to be placed vertical or laid
with a downwards inclination of minimum 15°.