SKU: 3

COLTRI COMPRESSOR MARK III SILENT

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The MARK III SILENT model is designed with control system to effectively monitor all operations: interstage pressure, oil level, internal cabin temperature and rotation direction detector. With two connections for high pressure flexible hoses, it is equipped with eletric motors and powerful pumping units, automatic condendate drain and eletrical panel for mananging the automatic compressor shutdown.

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3-stage high pressure pumping unit

Aluminum monoblock,
Forged steel gooseneck
Flutter lubrication
Forged aluminum connecting rods
Bench roller bearings
Connecting rod roller bearings
1st and 2nd stage cylinders made of aluminum with hard nicasil coating
Skid guide cylinders of 2nd and 3rd stage made of aluminum with hard nicasil coating
3rd stage cylinder made of treated special steel.
Stainless steel intake and exhaust valves
Stainless steel interstage cooling tubes
Separator after the 2nd and 3rd stages
Safety valves after each stage
Filter system Maxifilter
Oil level sensor

Electric motor

One of the basic parts of the compressor: the motor transfers motion to the pumping unit through the belt. On this model, the single-phase or three-phase electric motor is available from 4 to 5 ,5 kW.

Purification system Maxifilter

The purification system Maxifilter enables reliable treatment of breathing air according to DIN EN 12021 when using original filter cartridges. Placed after the compressor 2nd and 3rd stage separator and before the pressure maintenance valve to create a first fundamental barrier against moisture. Filter capacity with inlet air at 20°C and 200 bar is 890 m³.

Electrical cabinet

ON/OFF switch with motor protection switch.
Electromechanical pressure switch that stops the compressor at the final pressure.
Drainage of all separators between individual stages and also of the final separator during compressor operation
Timer for automatic condensate drainage device.
Integrated no-load startup (automatic discharge each time the unit is turned off).
Condensate collection tank 5 liters, with silencer; capacity about 3 liters, for environmentally friendly disposal of condensate.
Interstage pressure gauges display the operating pressure for individual compression stages. This pressure information allows the tightness of the valves (inlet and outlet) of each stage to be checked and potential sources of failure to be quickly identified.