Open
Great performance,
even in charging.
Open meets professional needs that require large charging capacities in hot, poorly ventilated or tropical countries. It is equipped with 4 front filling connections for high pressure hoses, an intuitive control panel and an electric motor. The pumping unit, chosen from the 4 most powerful, is exposed in the rear part of the structure to ensure a better cooling cycle. For longer filter life, the Tornado high pressure dryer is recommended. Available as optional: the Presec system for filter saturation control or the SAM system for multigas analysis and remote charging panel.
4-stage high pressure pumping unit.
- Monobloc in aluminum,
- Crankshaft in forged steel
- forced lubrication on the 4th stage cylinder by gear pump
- Oil filtration
- Aluminum connecting rods
- Main roller 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
- Interstage cooling pipes in stainless steel
- Separator after the 2nd, 3rd and 4th stage
- Safety valves after each stage
- Oil level sensor
- Prepared for Hyperfilter filter system
Purification at the highest level.
Placed after the last compressor separator and before the pressure holding valve, the Hyperfilter purification system enables 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 that stops the compressor at the final pressure.
- Drainage of all separators between the individual stages and also of the final separator during compressor operation
- Timer for automatic condensate drain.
- Integrated no-load start (automatic drain every time the unit is switched off).
- 5 liter condensate collection tank, with silencer; capacity of about 3 liters, for the ecological disposal of condensate.
- Interstage pressure gauges display the working pressure for the individual compression stages. This pressure information allows you to check the tightness of the valves (inlet and outlet) of each stage and to quickly identify potential sources of failure.
Chassis
Open frame with vertical development designed to facilitate maintenance operations. The oil level and drain reported outside, the control console equipped with inter-stage pressure gauges, the oil pressure gauge, the internal temperature indicator, the presence alarm and incorrect phase sequence, the lack alarm oil and the start, stop and manual condensate drain commands allow easy management and maintenance of the compressor.
Standard equipment
4 Filling connections of your choice of DIN 232, DIN 300 or INT/YOKE 232 bar
4 filling hoses of 1.2 m in length
Pressure maintenance valve
Interstage control gauges
Double PED certified Hyperfilter filter system
Cabin internal temperature with automatic switch-off
Automatic condensate drain
Automatic direction of rotation control
Electronic pressure switch with automatic shutdown
Oil level control with automatic shutdown
Oil pump
Automatic condensate drain with conveyor system in the tank
Frame color Black RAL 9005
Technical data
Type of gas
Breathing air (EN 12021) – Nitrox 40% max O2 – Helium – Nitrogen
Intake pressure
Atmospheric max 300 millibars
Nominal pressure
250 bar / 330 bar / 360 bar
Working pressure
232 bar / 300 bar / 330 bar
Max working pressure
420 bar
Permissible ambient temperature range
-10° C ÷ +40° C
Permissible altitude
0 ÷ 1.500 m SLM
Max permissible tilt
15°
Design
Insonorizzato
Operating voltage, standard
400 V; 50 Hz
Other operating voltage
On three-phase electric motor at 60Hz the power (kW / Hp) increases by 20%.230 V 50 hz / 440 V 60 hz / 230 V 60 hz
Oil
Synthetic Coltri Oil ST 755
Oil change interval
Every year / 1,000 h
Frame
Steel – Color RAL 9005 – Powder coated – Scratch resistant
Noise
LpA LpA 72 dB dB
Compressor
Charging rate
Measured during 10 liters cylinder filling from 0-200 bar tolerance +/- 5% at + 20° C ambient temperature.450 ET
450 l/min
27 m3/h
15.9 CFM
550 ET
550 l/min
33 m3/h
19.4 CFM
650 ET
650 l/min
39 m3/h
23 CFM
750 ET
750 l/min
45 m3/h
26.5 CFM
Purification system
2 Hyperfilter
Cooling air flow, min.
450 ET
4.050 m3/h
550 ET
4.820 m3/h
650 ET
4.820 m3/h
750 ET
5.590 m3/h
Weight
Standard model. Weight and dimensions may vary depending on accessories.450 ET
356 kg
784 lb
550 ET
361 kg
796 lb
650 ET
365 kg
804 lb
750 ET
373 kg
943 lb
Dimensions
(W x D x H)90,5 x 105,2 x 153 cm
35.6 x 40.4 x 60.5 in
Motor
Power
450 ET
7.5 kW
10 Hp
550 ET
9 kW
12.5 Hp
650 ET
11 kW
15 Hp
750 ET
15 kW
20 Hp
Type
450 ET
Three-phase electric
550 ET
Three-phase electric
650 ET
Three-phase electric
750 ET
Three-phase electric
Operating voltage/frequency
Different voltage / frequency available on request.450 ET
400 V, 50 Hz
550 ET
400 V, 50 Hz
650 ET
400 V, 50 Hz
750 ET
400 V, 50 Hz
Rated current
450 ET
15 A
550 ET
18.8 A
650 ET
23 A
750 ET
31 A
Speed (RPM)
450 ET
2.870
550 ET
2.880
650 ET
2.910
750 ET
2.920
Protection class
IP55
Optional
The available models of Open
(Non-standard models available upon request)
Open 450 ET
Flow rate: 450 l/min
Cylinder refill (10 liters): 4 minutes 30 seconds
Open 550 ET
Flow rate: 550 l/min
Refill cylinder (10 liters): 4 minutes
Open 650 ET
Flow rate: 650 l/min
Refill cylinder (10 liters): 3 minutes
Open 750 ET
Flow rate: 750 l/min
Cylinder refill (10 liters): 2 minutes 40 seconds