Breathing Air Compressors & Service
Explore the power of Coltri's high-pressure compressors
High-and low-pressure compressors for breathing air and technical gases.
At Coral Garden, we are proud to showcase the renowned Coltri Compressors—a symbol of excellence and innovation in the diving industry. Crafted in the Coltri workshops in Italy, each compressor undergoes rigorous daily checks on production processes, ensuring unparalleled quality from concept to assembly. Our commitment to offering compressors that are "Made in Italy" reflects our dedication to providing you with reliable and durable equipment.
Portable Breathing Air Compressor
Refill your cylinders with the mini compressors of the Portables line even on board boats. The iconic Coltri MCH-6 pumping unit has evolved into GP 100 and equips a line of very light and practical compressors, which boasts excellent portability to follow you everywhere.
Efficient line compressor
The Efficient line features quiet, high-performance air compressors. Strong and “easy” in operation, they are the first choice for those who are already professionals. Products in the Efficient line also impress in flow rate: from 100 to 315 liters per minute.
Tankless line compressor
Low-pressure compressors.
Famous for their maneuverability, Tankless models are low-pressure compressors for breathing air, dedicated to professionals
Prime line compressor
Air compressors up to 380 liters per minute.
Prime line compressors are high-pressure air compressors with condensate separator and dryer (optional feature on Super Silent TPS model) for tropical climates.
Heavy Duty line compressor
High-performance air compressors.
Air compressors in the Heavy Duty line surprise with their high performance: powerful and tireless, they minimize charging speed.
Nitrox compressors & Service
Industrial screw compressors
Safety and ease of use are the pluses that make these low-pressure air compression systems ideal for recreational diving. Combined with a high-pressure breathing air compressor, these models provide an oxygen-enriched mixture of up to 40 percent
LP Rotary Silent 250
It consists of an industrial screw compressor that delivers air at a pressure of 10 bar to the Parker membrane. The percentage of oxygen obtained at the outlet can be adjusted from 32% to 36% thanks to a valve accessible on the front side of the compressor. If connected to a compressor with pumping unit 315 (MCH 16), Nitrox at 32% can be obtained up to a pressure of 232 bar.
Standard equipment
- Electrical cabinet
- Automatic condensate drain
- 2 analyzers
- Thermostat
- 1 Parker Enoxy SA 708 oxygen membrane
LP Rotary Silent 300
Industrial screw compressor that delivers air at a pressure of 8 bar towards a membrane that separates nitrogen and oxygen up to a maximum percentage of 40% of oxygen.
Standard equipment
- Electrical cabinet
- Automatic condensate drain
- 2 analyzers
- Thermostat
- 1 Permea 230 membrane
LP Rotary Silent 600
The top of the line, consisting of an industrial screw compressor that delivers air at 10 bar to a membrane that separates nitrogen and oxygen at atmospheric pressure until 40% Nitrox is obtained.
Standard equipment
- Electrical cabinet
- Automatic condensate drain
- 2 analyzers
- Thermostat
- 1 Permea 230 membrane
CNG compressors
Designed for recharging CNG cylinders, CNG compressors allow you to recharge your car at home, in total autonomy.
CNG Compressor HD
Standard equipment
- Intake filter
- Hitch-hiking
- Double PED certified Hyperfilter filter
- system with molecular sieve
- Natural gas refueling gun with direct action NGV1
- 4.5 m filling hose
- Low pressure switch at gas inlet
- Methane gas detector
- Oil pump
- Frame color RAL 7035
CNG Booster Compressor RC
Compact ,robust ,performing
Designed to compress previously treated and filtered natural gas and biomethane with a suction pressure between 2 and 8 bar and a final pressure of up to 250 bar.
Robust and compact, created to fill cylinders for gas
storage. The use of the products of the CNG BOOSTER RC
line is easy and can be done in total safety. The equipment
includes a remote electromechanical panel with 5 meters
of cable for control and automatic stop function when the
tank is full.
Standard equipment
- Intake filter
- Hitch-hiking
- Maxifilter filter system
- Ventilation tube
- Low pressure switch at gas inlet
- Frame color RAL 7035
CNG EVO Compressor
Created to recompress the previously treated and filtered
natural gas and biomethane. They are suitable for both
home use and small fleets. The products of the CNG EVO
line are equipped with an electronic control and a
command unit, equipped with the automatic stop function
when the tank is full and with advanced safety systems.
Standard equipment
- Intake filter
- Hitch-hiking
- Digital display
- Vent pipe
- Natural gas refueling gun with direct action NGV1
- 4.5 m filling hose
- Low pressure switch at gas inlet
- Methane gas detector
- Oil pump
- Frame color RAL 7035
Fill containment cabinet
Fill containment cabinets for cylinders
Safety and reliability, discover Coltri’s cylinder charging cabinets
Armor 2
Protect yourself from the possible dangers of refilling cylinders with many charging cycles or poor maintenance with Coltri Explosion Proof Cabins. Maximum safety for possible air expansion explosions. Capacity to house 2 cylinders with a maximum diameter of 220mm.
Standard equipment
- Whisk with DIN 300 bar connection
Aromr4
Protect yourself from the possible dangers of refilling cylinders with many charging cycles or poor maintenance with Coltri Explosion Proof Cabins. Maximum safety against possible explosions from air expansion. Capacity for housing up to 4 cylinders. Opening with comfortable hinged door.
Standard equipment
- Whisk with DIN 300 bar connection
Storage system
Storage system for air and nitrogen of 1 or 2 50-liter cylinders.
Storage system are modular for series connection to meet even the highest storage volumes.
Air and nitrogen storage station 2×50 liters @ 420 bar
Air and nitrogen storage station 2×50 liters @ 420 bar
Air and nitrogen storage station 50 liters @ 420 bar
Air and nitrogen storage station 50 liters @ 420 bar
Accessories for compressors and cylinders
Adapters, air or technical gas cylinder dispensers, and compressor spare parts.
0-400 W digital pressure switch
Using the programming buttons, it allows to set the intervention pressure of the relay contact (SPDT) and of the hysteresis. The settings are password protected at 3 levels: manufacturer, customer and end user. The instrument also has the function of operating hours counter and no. separator intervention cycles, ensuring a general improvement in the operation of the charging station over time and the longevity of its filters.
1.2 meter filling hose
Whisk for 1.2 meter bottle refill compressor.
1.5 meter filling hose
1.5 meter filling hose for cylinders refill.
1/4 FF in-out valve
1/4 FF in-out valve.
2 meter filling hose
2 meter filling hose for cylinders refill.
3 meter filling hose
3 meter filling hose for cylinders refill.
3 meter remote suction kit
3 meter remote suction kit.
To be used only for the compressors of the Portables and Tankless line with gasoline engine.
350 bar electromechanical pressure switch
The instrument displays the pressure expressed in bar / psi.
Using the adjustment knob, it allows you to set the maximum automatic shutdown pressure.
7/16 “L” fitting for whips
7/16 “L” fitting for whips.
7/16 “T” fitting for whips
7/16 “T” fitting for whips.
Automatic condensate drain with timer for portable compressors
Available only for compressors with electric motor.
The automatic condensate drain removes water from the intermediate separator and final separator automatically during operation (every 7 minutes).
Composed of:
1 timer
1 solenoid valve
Autostop for portable compressors – 232 bar
The compressor switches off automatically when it reaches final pressure.
Consisting of a 232 bar pressure switch with 250 bar safety valve.
Autostop for portable compressors – 300 bar
The compressor switches off automatically when it reaches final pressure.
Consisting of a 300 bar pressure switch with 330 bar safety valve.
C-monitor
Final filter monitoring system, oil change and technical interface.
CO + CO2 + H2O Multigas Analysis System
The Coltri Multigas Analysis System is a measuring instrument capable of monitoring air quality. Its application includes continuous monitoring of environmental gases, hyperbaric chambers, safety, medical, air quality.
Available sensors:
• Oxygen O 2
• Carbon dioxide CO 2
• Carbon monoxide CO
• Humidity H. 2 OR
• Gas temperature
• Helium in the air
CO + CO2 + H2O Multigas Analysis System with VOC
The Coltri Multigas Analysis System is a measuring instrument capable of monitoring air quality. Its application includes continuous monitoring of environmental gases, hyperbaric chambers, safety, medical, air quality.
Available sensors:
• Oxygen O 2
• Carbon dioxide CO 2
• Carbon monoxide CO
• Humidity H. 2 OR
• Gas temperature
• VOC (Volatile Organic Compound)
• Helium in the air
Digital hour meter for portable compressors
Digital hour meter.
To be used only for the compressors of the Portables and Tankless line with gasoline engine.
Digital pressure switch (Retrofit Kit)
The instrument displays the pressure expressed in bar, psi or MPa.
Using the programming buttons, it allows to set the intervention pressure of the relay contact (SPDT) and of the hysteresis. The settings are password protected at 3 levels: manufacturer, customer and end user. The instrument also has the function of operating hours counter and no. separator intervention cycles, ensuring a general improvement in the operation of the charging station over time and the longevity of its filters
DIN / INT YOKE filling connection adapter.
DIN / INT YOKE filling connection adapter.
Double outlet T fitting for Eolo 330
Double outlet T fitting for Eolo 330.
Filling connection DIN 232 bar for lever valve with safety pin
232 bar filling connection for lever valve with safety pin.
Filling connection DIN 232 bar for MCH 6.
Filling connection DIN 232 bar for MCH 6.
Filling connection DIN 300 bar for MCH 6
Filling connection DIN 300 bar for MCH 6.
Filling connection DIN 300 bar for lever valve with safety pin
300 bar filling connection for lever valve with safety pin.
Filling connection DRV DIN 300 bar
Filling connection DRV DIN 232 bar with gauge
Filling connection DRV 232 bar
Filter holder bracket for Hyperfilter
110 mm stainless steel filter holder bracket for Hyperfilter.
Fillint connection DRV INT/YOKE 232 bar
Filling connection DRV DIN 300 bar with gauge
Filter holder bracket for Maxifilter
Filter holder bracket for 80 mm Maxifilter in stainless steel.
Final-safety-valve-232-bar
Final safety valve 250 bar
Final safety valve 300 bar
Final safety valve 330 bar
HP separator for MCH 36
High pressure separator for MCH 36 pumping unit.
HP / LP flow limiter for analyzer
INT YOKE filling connection for lever valve with safety pin
Hyperfilter (without cartridge)
Maxifilter (without cartridge) black
INT / YOKE filling connection for MCH 6
Maxifilter (without cartridge) silver
Non-toxic hose for fittings for Eolo 330
Non-toxic hose for fittings for Eolo 330.
It measures from 25 meters
Presec system
The Presec system is connected via a probe to the first filtering cartridge and detects its saturation status by transmitting the relative switching signals to the indicator based on the status. If the filter cartridge runs out, the compressor switches off and cannot be started until the cartridge is replaced.
Pressure limiter from DIN 300 to DIN 232 bar
Pressure test gauge 232 bar
The pressure test gauge is a system for checking the air pressure inside the diving cylinders. The pressure test gauge must be connected to the connection on the cylinder to be tested. The pressure gauges comply with the EN 837-1 / 3 standards for measuring instruments. Use a suitable pressure test gauge according to the cylinder connection and the pressure to be measured.
Pressure regulator 300/200 bar
Pressure regulator 300/200 bar. It allows to have two different output pressure measurements, respectively from 200 and 300 bar.
To be used only for the Compact model (Portables Line) with electric motors.
Pressure maintenance valve for portable compressors
Pressure maintenance valve for portable compressors.
Use only with BC cylinder connections.
Pro oxygen analyzer with remote sensor
Pro Carbon Monoxide Analyzer
Pro oxygen analyzer
Remote filling panel double pressure
Remote double pressure refill panel with cylinder connections from a choice of:
DRV DIN 232 bar + DRV DIN 300 bar
DRV INT/YOKE 232 bar + DRV DIN 300 bar
Priority panel
The priority panel is an ideal solution for simple and effective storage management. It automatically manages the air flow in the filling station between the compressor, storage, and cylinders. The user can simply connect the empty cylinders to the filling panel and open their valves.
Included in the product
- 2 + 2 cylinder connections
- 2 pressure gauges
- 1 Pressure reducer
- 1 Priority panel
- 4 HP filling connections 1.20 m – 3.9 ft
- 1 HP filling connection 3 m – 9.8 ft
Remote filling panel double pressure with lever taps
Priority panel
The priority panel is an ideal solution for simple and effective storage management. It automatically manages the air flow in the filling station between the compressor, storage, and cylinders. The user can simply connect the empty cylinders to the filling panel and open their valves.
Included in the product
- 2 + 2 cylinder connections
- 1 Manometer
- 4 HP filling connections 1.20 m – 3.9 ft
- 1 HP filling connection 3 m – 9.8 ft
Remote filling panel single pressure
Single pressure remote filling panel with a choice of:
DRV DIN 232 bar
DRV DIN 300 bar
DRV INT/YOKE 232 bar
Included in the product
4 cylinder connections
1 Manometer
4 HP filling connections 1.20 m – 3.9 ft
1 HP filling connection 3 m – 9.8 ft
Remote filling panel single pressure with lever taps
Remote filling panel with single lever pressure taps from a choice of:
- DIN 232 bar
- DIN 300 bar
- INT/YOKE 232 bar
Included in the product
- 4 cylinder connections
- 1 Manometer
- 4 HP filling connections 1,20 m – 3.9 ft
- 1 HP filling connection 3 m – 9.8 ft
Replacement sensor for pro oxygen analyzer with remote sensor
Spare parts kit for BC / BC DIN 232/300 bar
Replacement sensor for carbon monoxide analyzer pro
Replacement sensor for pro oxygen analyzer
Spare parts kit for DRV DIN 232 / DIN 300 bar
Steel safety cable for filling hose (filling station)
10-15 mm diameter (TI 015).
Steel safety cable for filling hose (portable compressors)
5-9 mm diameter (TI 010).
Valve spare parts kit
Tornado refrigerator
Compressed air cooler, dryer high pressure.
OPERATING LIFE OF FILTERS UP TO 3 TIMES LONGER
• Better air quality
• Less corrosion of mechanical parts
• Refilling of cylinders with constant humidity percentage
The TORNADO refrigerator is an accessory for our recharging stations dedicated to professional use that operates between the separators and the filtering system.
Available in 350 or 420 bar version.
Consumables
Spare parts for compressors: filters, lubricating oil, cartridges, and more.
Take care of your compressor with original Coltri accessories. Shop online for the best consumables to keep your compressor’s performance at the top
Eco filter cartridge
Available with:
MOLECULAR SIEVE AND ACTIVATED CARBON
The right choice when you need to get breathable air. The molecular sieve eliminates humidity in the air and the activated carbon removes odors and any oil residues.
MOLECULAR SIEVE, ACTIVATED CARBON AND CO-CATALYST
The CO-catalyst, in addition to the molecular sieve and the activated carbon, will allow to absorb the dangerous Carbon Monoxide. Its use is indicated in the presence of internal combustion engines or in places where it is very likely to find an excessive amount of carbon monoxide.
MOLECULAR SIEVE
The molecular sieve, through porous micro granules, is used to absorb moisture.
ATTENTION: The molecular sieve only cartridge should be used when Not you need to get breathable air.
ACTIVATED CARBON
Activated carbon is used to remove odors and oil residues. Activated carbon is sensitive to humidity, so to obtain breathable air it is necessary to use activated carbon together with the molecular sieve to eliminate humidity.
ATTENTION: The activated carbon only cartridge should be used when Not you need to get breathable air.
Maxifilter cartridge
Available with:
MOLECULAR SIEVE AND ACTIVATED CARBON
The right choice when you need to get breathable air. The molecular sieve eliminates humidity in the air and the activated carbon removes odors and any oil residues.
MOLECULAR SIEVE, ACTIVATED CARBON AND CO-CATALYST
The CO-catalyst, in addition to the molecular sieve and the activated carbon, will allow to absorb the dangerous Carbon Monoxide. Its use is indicated in the presence of internal combustion engines or in places where it is very likely to find an excessive amount of carbon monoxide.
MOLECULAR SIEVE
The molecular sieve, through porous micro granules, is used to absorb moisture.
ATTENTION: The molecular sieve only cartridge should be used when Not you need to get breathable air.
ACTIVATED CARBON
Activated carbon is used to remove odors and oil residues. Activated carbon is sensitive to humidity, so to obtain breathable air it is necessary to use activated carbon together with the molecular sieve to eliminate humidity.
ATTENTION: The activated carbon only cartridge should be used when Not you need to get breathable air.
Maxifilter cartridge caps and discs kit
Caps and discs kit, 6 pieces, for MAXIFILTER filter system cartridges.
Felts for Maxifilter cartridges
Kit of 6 pieces of felts for MAXIFILTER filter system cartridges.
Hyperfilter cartridge
Available with:
MOLECULAR SIEVE AND ACTIVATED CARBON
The right choice when you need to get breathable air. The molecular sieve eliminates humidity in the air and the activated carbon removes odors and any oil residues.
MOLECULAR SIEVE, ACTIVATED CARBON AND CO-CATALYST
The CO-catalyst, in addition to the molecular sieve and the activated carbon, will allow to absorb the dangerous Carbon Monoxide. Its use is indicated in the presence of internal combustion engines or in places where it is very likely to find an excessive amount of carbon monoxide.
MOLECULAR SIEVE
The molecular sieve, through porous micro granules, is used to absorb moisture.
ACTIVATED CARBON
Activated carbon is used to remove odors and oil residues. Activated carbon is sensitive to humidity, so to obtain breathable air it is necessary to use activated carbon together with the molecular sieve to eliminate humidity.
Hyperfilter Presec cartridge
Caps and discs kit for Hyperfilter cartridges
Caps and discs kit, 6 pieces, for HYPERFILTER filter system cartridges.
Synthetic Coltri Oil ST 755 1 liter
Coltri Oil ST 755 has a wide temperature range (-15 ° C to + 250 ° C) it can therefore be used in all seasons.
The characteristic of resistance to high temperatures allows an efficient use at maximum temperature. There is no need for seasonal oil changes, thus reducing inventory and the potential risk of contamination with the wrong oils.
Molecular sieve 1 liter
Molecular sieves are materials that can separate molecules based on size. This ability is based on the presence in the material of tiny pores of exact and uniform size, with a diameter between 3 and 10 Å depending on the material.
CO Catalyst 1 liter
CO Catalyst is the trade name for a series of mixtures consisting mainly of oxides of copper and manganese, used as catalysts for the conversion of carbon monoxide to carbon dioxide when exposed to oxygen in the air at room temperature.
Special Motor Oil for 1 liter petrol and diesel engines
Activated carbon 1 liter
It is a material containing mainly amorphous carbon . Thanks to the high specific area, activated carbon is able to retain many molecules of other substances inside it, being able to accommodate these molecules on its extensive internal surface area.
Coltri Oil LP 46 for Rotary Silent LP – 1 liter
Oil coulters LP 46 for Rotary Silent LP 280/300/560/600/713.
1 liter can.
Suction filter for MCH 22/30/36/45
Suction filter for MCH 11/13/16/18
Oil filter cartridge for MCH 22/30/36 (up to 2018) and 15/16/18 TPS (up to 2021)
Suction filter for MCH 6
Suction filter for MCH 8 and Eolo 330
Air filter for Rotary Silent LP 280/300 C: 0.003 PPM Oil vapor
Oil filter cartridge for MCH 22/30/36/45 and MCH 16/23 TPS
Air filter for Rotary Silent LP 280/300 A: 1.0 Micron particle
Air filter for Rotary Silent LP 280/300 B: 1.0 Micron particle
Oil / air filter for Rotary Silent LP 280/300
Suction filter for Rotary Silent LP 560
Suction filter for Rotary Silent LP 300
Suction filter for Rotary Silent LP 280 Version 1
Air filter for Rotary Silent LP 516/700/713 C: 0.003 PPM Oil vapor
Air filter for Rotary Silent LP 516/700/713 B: 1,0 Micron particle
Air filter for Rotary Silent LP 516/700/713 A: 1.0 Micron particle
Oil filter for Rotary Silent LP 280
Mixing tube air filter for Rotary Silent LP 560/713
Mixing tube air filter for Rotary Silent LP 280/300
Oil filter for Rotary Silent LP 560/713
Oil / air filter for Rotary Silent LP 560/713
Oil filter for Rotary Silent LP 300
