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Piston compressor booster station Ace VII Plus
nitrogenairoil-lubricated

Piston compressor booster station - Ace VII Plus - AEROTECNICA COLTRI S.p.A. - nitrogen / air / oil-lubricated
Piston compressor booster station - Ace VII Plus - AEROTECNICA COLTRI S.p.A. - nitrogen / air / oil-lubricated
Piston compressor booster station - Ace VII Plus - AEROTECNICA COLTRI S.p.A. - nitrogen / air / oil-lubricated - image - 2
Piston compressor booster station - Ace VII Plus - AEROTECNICA COLTRI S.p.A. - nitrogen / air / oil-lubricated - image - 3
Piston compressor booster station - Ace VII Plus - AEROTECNICA COLTRI S.p.A. - nitrogen / air / oil-lubricated - image - 4
Piston compressor booster station - Ace VII Plus - AEROTECNICA COLTRI S.p.A. - nitrogen / air / oil-lubricated - image - 5
Piston compressor booster station - Ace VII Plus - AEROTECNICA COLTRI S.p.A. - nitrogen / air / oil-lubricated - image - 6
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Characteristics

Technology
piston
Media
nitrogen, air
Lubrication
oil-lubricated
Cooling system
air-cooled
Number of stages
multi-stage
Other characteristics
electric power
Pressure

Min.: 5 bar
(72.5 psi)

Max.: 420 bar
(6,091.6 psi)

Description

Overview
  • Ace VII Plus is a 4-stage (2+2 parallel) booster compressor designed for breathing air and nitrogen, suitable for high-pressure filling and industrial applications. Compact HD pumping unit and optional purification ensure compliance with breathing gas requirements.


Pump unit
  • 4-stage HD pumping unit (2+2 in parallel) with aluminum monoblock.
  • Forced lubrication by low-pressure gear pump.
  • First stage arranged for gas recovery and safety valves after each compression stage.
  • Pipes, fittings and nuts in AISI 316 stainless steel; special cast-iron cylinders lapped to low roughness.
  • Forged aluminum connecting rods and forged steel crankshaft; roller bearings for intensive duty.
  • Hardened-steel fourth stage with six special cast-iron piston rings; thrust pads on second and third stages to eliminate lateral forces.
  • High-flow valves on stages 1–3; intermediate condensate separators after stages 2 and 3 and a high-pressure final separator.


Purification system (Hyperfilter)
  • Stand-alone activated-carbon Hyperfilter mounted on separate support.
  • Includes configurable safety valve, pressure-holding valve, separator and external Hyperfilter kit, and leg kit.
  • Automatic condensate drain removes water from intermediate and final separators during operation (standard interval: every 7 minutes).


Electric motor
  • Three-phase electric motor transmits motion to the pumping unit via V-belt. Available power options: 9 kW, 11 kW or 15 kW.


Electrical cabinet and controls
  • Motor protection switch, Autostop and Autostart functions.
  • Automatic drainage of separators between stages during operation (standard: every 15 minutes for 6 seconds).
  • Interstage pressure gauges mounted in the compressor frame for monitoring stage pressures, valve tightness and early fault detection.
  • Control console with interstage gauges, internal temperature indicator, phase-sequence and oil-shortage alarms, start/stop and manual condensate drain controls.


Frame and cooling
  • Open frame for easy maintenance and transport; tilting motor carrier plate ensures constant V-belt tension.
  • Thermo-formed protective casing channels cooling air over cylinders and inter-stage piping to improve compression efficiency.
  • Steel frame with scratch‑resistant powder coating RAL 9005 (black).


Standard equipment
  • Stand‑alone Hyperfilter filtration system with activated carbon cartridges.
  • Compressor control and automatic condensate drainage system.
  • Interstage control pressure gauges.
  • Frame color: RAL 9005 black.


Technical specifications
  • Gas: Air – Nitrogen
  • Suction pressure: Min. 5 bar – Max. 10 bar
  • Rated pressure options: 250 bar / 330 bar
  • Operating pressure: 232 bar / 300 bar
  • Max working pressure: 420 bar
  • Ambient temperature range: -10° C ÷ +40° C
  • Altitude range: 0 ÷ 1,500 m SLM
  • Max allowable inclination: 15°
  • Design: Soundproof cabinet with absorber (when specified)
  • Standard voltage: 400 V, 50 Hz (other voltages available)
  • Oil: Coltri ST 755 synthetic; oil change interval: 1 year / 1,000 h
  • Pump group flow (9 kW): 292–643 l/min (18–39 m3/h; 10.3–22.7 CFM)
  • Pump group flow (11 kW): 344–756 l/min (21–45 m3/h; 12.1–26.7 CFM)
  • Pump group flow (15 kW): 430–945 l/min (26–57 m3/h; 15.2–33.4 CFM)
  • Cooling air flow: 9 kW = 2,700 m3/h; 11 kW = 3,170 m3/h; 15 kW = 3,960 m3/h
  • Purification: 2 activated-carbon Hyperfilters
  • Weight (standard): 225 kg (may vary with accessories)
  • Dimensions (W x D x H): 115 x 60 x 79.6 cm

Catalogs

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