Instruction Manual
DPH 220 - DPH 460
Page 1
This manual contains operating instructions and maintenance schedules for the high pressure breathing air compressors. Operators
must read and understand all information inside the manual.
ATTENTION.
This machine can be used only after a careful reading of this instruction manual. The machine may only
used to produce compressed air. Other use is strictly prohibited. The manufacturer and the supplier void all responsibility
for damage or injury resulting from failure to follow these instructions.
1. GENERAL INFORMATION:
Before using the machine please put your attention to this
general information:
1. Personnel engaged to operate the machine must have read the
instruction manual before beginning work, especially the safety
notices chapter.
2. Personnel may not wear long hair loose, loose clothing or
jewellery, including rings.
3. Keep all safety and danger notices on the unit complete and in
readable condition.
4. No modifications may be made to the unit which could impair
safety without first obtaining permission from the suppliers.
5. Piping must be thoroughly checked (pressure and visual inspection)
by the operator at appropriate time intervals, even if no safety related
faults have been noticed..
6. Intervals stipulated or given in the instruction manual for recurring
checks/inspections must be adhered to.
7. It is absolutely essential that the workplace is appropriately
equipped for maintenance measures.
8. Work on/with the unit may only be carried out by reliable personnel.
Observe the legal minimum age permissible.
2. GENERAL FEATURES:
The DPH 220 - DPH 460 high pressure compressors are designed
to compress air for breathing as required in diving and fire
fighting applications. The max pressure is 225 bar or
330 bar depending on unit.
The compressor unit comprises the following major assemblies:
. Compressor block
. Electric or petrol/diesel engine
. Filters
. Filling assembly
. Protection and anti-vibration frame
. Automatic condensate drain*
. Electric control system**
. Automatic switch on/off*
. ALLUMINUM frame
(*) Optional extra according to order
3. COMPRESSOR GROUP:
The compressor block DPH 220 - DPH 460 is used to compress air in the high pressure range up to 330 bar (4500 psi). The compressor
block is of a four stage, four cylinders design. The cylinders are arranged in the 1st stage on the left, 2nd stage on the right, 3rd and
4th stage on the centre side looking from the filter side. The compressor blocks are particularly suitable for continuous operation
because of their rugged design and the corrosion resistant intermediate filter and cooler assemblies. Smooth running is a particular
feature of this DINO PAOLI SRL design. The moving parts of the driving gear are all equally balanced. This results in a vibration-free
running. The driving gear is fitted with energy saving cylinder roller bearings. The upper and lower connecting rod bearings are also
roller bearings. Crankcase, cylinders and heads are obtained from the gravity dies. Connecting rod are extracted from casting dies.
Cylinder are in cast iron inside an aluminium pipe.
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