BOGE Operating instructions for C 16 N...C 30 N, C 16 F N...C 30 F N series screw compressors
Page 19
Product description
2.3
Water cooling
2.3 Water cooling
Water cooling
BOGE screw compressors are available in water or air-cooled design.
In the standard version, the oil and compressed air after-coolers are connect-
ed in series on the water side.
Series connection
Fig. 2.3: Serial connection
1 Cooling water solenoid valve
The cooling water solenoid valve closed the cooling water supply when
the compressor switches off.
2 Cooling water stop valve (provided by customer)
The compressor may be separated from the cooling water supply by
means of the stop valve (e.g. for maintenance or repair work).
3 Dirt trap (provided by customer)
The dirt trap protects the cooling unit against sedimenting.
Pore size: max. 0.02 inch.
4 Oil cooling unit
5 Compressed air after-cooler
The water cooling units are designed for specific standard cooling water
quantities, temperatures and pressures (see "Technical data"). For indi-
vidually fluctuating values, they are designed according to the specified
order data.
2.4 Cooling water
Water connection
(for water cooling)
The cooling water must have the following properties:
Max. cooling water quantity see "Technical data".
Electrical conductivity
– > 50 µS/cm at pH value 7 – 9
Carbonate hardness (CaCO
3
)
– < 284,8 °aH
Cooling water pressure
– max. 145,0 psig
– min.
29,0 psig
Cooling water inlet temperature – min.
+ 41 °F
– max.
+ 86 °F