HD Silent Compressor

4-stage high pressure pumping unit.

• aluminum block,
• Forged steel gooseneck
• forced lubrication on the 4th stage cylinder via gear pump
• Oil filtration
• Aluminum connecting rods
• Roller main bearings
• Roller connecting rod bearings
• 1st, 2nd and 3rd stage cylinders in special cast iron
• 4th stage cylinder in special treated steel.
• Stainless steel intake and exhaust valves
• Stainless steel interstage cooling pipes
• Separator after 2nd, 3rd and 4th stage
• Safety valves after each stage
• Oil level sensor
• Prepared for Hyperfilter filtering system

Purification at the highest level.

Placed after the last separator of the compressor and before the pressure maintenance valve, the purification system Hyperfilter enables a reliable treatment of the breathing air according to DIN EN 12021¹ when using original filter cartridges. The separator present between the 2nd and 3rd stage of the purification circuit allows to extract the greatest possible humidity. The filtering capacity with inlet air at 20°C and 200 bar is 4300 m³.

Electrical cabinet

• ON/OFF switch with motor protection switch.
• Digital electronic pressure switch which stops the compressor at the final pressure.
• Drainage of all separators between individual stages and also of the after-separator during compressor operation
• Timer for automatic condensate drain device.
• Built-in dry start (automatic drain each time the unit is switched off).
• Condensate collection tank 5 litres, with silencer; capacity of about 3 litres, for the ecological disposal of the condensate.
• Interstage pressure gauges display the operating pressure for individual compression stages. This pressure information makes it possible to check the tightness of the valves (inlet and outlet) of each stage and to quickly identify potential sources of failure.

Chassis

Silent chassis with vertical development, designed for environments that require a low noise level. The oil level and drain reported to the outside, the control console equipped with inter-stage pressure gauges, the oil pressure gauge, the internal temperature indicator, the phase presence and wrong sequence alarm, the lack alarm oil and the commands of run stop and manual drain of the condensate allow an easy management and maintenance of the compressor. 

Technical data

Gas type - Breathable air (EN 12021) – Nitrox 40% max O2 – Helium – Nitrogen

Suction pressure - Atmospheric max 300 millibars

Nominal pressure - 250bar / 330bar / 360bar

Operating pressure - 250bar / 330bar / 360bar

Maximum working pressure - 420 bars

Allowed temperature range - -10°C ÷ +40°C

Altitude range allowed - 0 ÷ 1,500 m above sea level

Maximum inclination allowed - 15th

Design - Soundproof cabinet

Operating voltage, standard - 400V; 50Hz

Other operating voltage (On a three-phase electric motor at 60 Hz, the power (kW / Hp) increases by 20%.) - 230V 50Hz / 440V 60Hz / 230V 60Hz

Oil - Synthetic Coltri Oil ST 755

Oil change interval - Every year / 1,000 h

Chassis - 1.5 mm thick steel - RAL 9005 color - Powder coating - scratch resistant

Compressor

Motor