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CNG Catalogue

Product catalog summary

Introduction
Natural gas is presented as an efficient, economical, and environmentally friendly fuel. It is compatible with current engines and offers cost savings and stable pricing compared to gasoline, with lower emissions making it a clean energy solution for various sectors.

Company Overview
Coltri, an Italian company, has been a leader in compressor technology for over fifty years. The company focuses on high-quality manufacturing and innovation, emphasizing its commitment to research and development, using advanced tools and maintaining rigorous quality standards.

CNG EVO Series
This series includes models like CNG EVO 85 EM, 85 ET, 170 ET, and 266 ET, designed for natural gas compression. Key specifications include an intake pressure of max. 200 mbar, nominal pressure of 250 bar, operating voltage of 400 V, 50 Hz, flow rates from 85 l/min to 266 l/min, and an optional Hyperfilter purification system.

CNG RC Series
Similar to the EVO series, the RC series offers models like CNG RC 85 EM, 85 ET, 170 ET, and 266 ET, with an intake pressure of max. 200 mbar, nominal pressure of 250 bar, flow rates from 85 l/min to 266 l/min, and a Maxifilter purification system.

CNG HD Series
This series includes higher capacity models such as CNG HD 330 ET, 400 ET, and 550 ET, featuring flow rates from 330 l/min to 550 l/min, a purification system with Hyperfilter x 2, and operating voltage of 400/690 V, 50 Hz.

CNG BOOSTER RC and HD Series
These boosters are designed for higher pressure applications, with models like CNG BOOSTER RC 3 KW, 4 KW, 5.5 KW, and CNG BOOSTER HD 9 KW, 11 KW, 15 KW. Key features include intake pressure of 2 bar - 8 bar for RC, 2 bar - 5 bar for HD, flow rates up to 800 l/min for the HD series, and purification systems with Maxifilter for RC and Hyperfilter x 2 for HD.

Conclusion
The catalogue showcases Coltri's comprehensive range of CNG compressors, emphasizing their technical specifications, efficiency, and adaptability for various industrial applications.

Technical Specifications
The CNG BOOSTER VII is an electric compressor designed for natural gas with a power of 9 kW (12 Hp). It operates with a three-phase electric motor, supporting various operating voltages and frequencies, including 400 V, 50 Hz as standard. The rated current is 18.8 A, and the motor speed is 2,880 RPM, with a protection class of IP55.

Compressor Details
The compressor has a flow rate ranging from 330 to 600 l/min, operates with an intake pressure between 2 bar and 5 bar, and a nominal pressure of 250 bar. The working pressure is 200 bar to 250 bar, with a maximum working pressure of 420 bar. The oil change interval is one year or 1,000 hours.

Design and Dimensions
The compressor features a three-stage, three-cylinder design with cylinder bores of 60 mm, 32 mm, and 15 mm for the 2nd, 3rd, and 4th stages, respectively. The stroke is 50 mm, and the direction of rotation is counterclockwise from the flywheel side. The drive type is a V-belt A type, and the compressor block requires 1.8 liters of oil.

Purification System
The CNG BOOSTER VII includes a Hyperfilter purification system with two filters, capable of filtering a gas volume of 3,050 m3. It features an automatic condensate drain and a high-pressure final condensate separator with double effect.

Physical Characteristics
The standard model weighs 225 kg and measures 115 x 60 x 79.6 cm.

Applications
The CNG BOOSTER VII is suitable for automotive, mobility, industry, commercial, and residential applications.

Contact Information
Aerotecnica Coltri S.p.A., Via dei Colli Storici, 177, 25015 Desenzano del Garda - Brescia - Italy. Tel: +39 030 9910301, Email: [email protected], Website: coltri.com

Catalog excerpts

Booster ad alta e media pressione per gas tecnici

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Application Natural gas represents one of the most efficient, economical, environmentally friendly and abundant fuels nationwide. Its complete compatibility with current engines makes it a viable alternative to traditional vehicle fuel. Manufacturers are increasingly developing a range of vehicles designed to run cleanly and efficiently on natural gas. In addition, simply converting some existing vehicles with a switch to switch between natural gas and gasoline (bi-fuel) does not compromise performance, making the power output of the two fuels virtually indistinguishable. One of the strengths...

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A profoundly Italian company, Coltri began building high-pressure scuba diving compressors in 1963. The company soon expanded into other fields, including firefighting compressors and industrial gas compressors. Today we are once again looking in a new direction. Ongoing advances in design and manufacture are at the very core of our identity: more than fifty years of continuous development have enabled us to engineer equipment that now sets the benchmark for the industry worldwide. Our commitment to research and development has enabled us to shift from consuming the latest technology to becoming...

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Electric 2025 © CdLTRI coltri.com 4

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Technical data Intake pressure Nominal pressure Filling pressure Maximum working pressure Operating voltage Other operating voltage Oil change interval Natural gas - Methane Max. 200 millibars 250 bar Purification system Hyperfilter (optional) * Standard model. Weight and dimensions may vary depending on accessories.

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HYPERFILTER purification system (optional) Purification system Operating pressure (Standard) Maximum operating pressure (PS) When using a filter cartridge of the type shown in the figure. Standard equipments Inlet filter Input filter Digital display Low pressure switch at the gas inlet Vent pipe Refueling nozzle natural gas with direct action NGV1

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Intake pressure 17 mbar - 200 mbar Cylinder bore 1st stage Cylinder bore 2nd stage Cylinder bore 3rd stage Direction of rotation (from flywheel side) Drive type Counter clockwise (Left) Intermediate pressure 1st stage Intermediate pressure 2nd stage

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Technical data Intake pressure Nominal pressure Filling pressure Maximum working pressure Operating voltage, standard Other operating voltage Oil change interval Natural gas - Methane Max. 200 millibars 250 bar Flow rate Purification system * Standard model. Weight and dimensions may vary depending on accessories.

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Purification system Maxifilter Operating pressure (Standard) 200 bar / 250 bar Maximum operating pressure (PS) 420 bar When using a filter cartridge of the type shown in the figure. Vent pipe Refueling nozzle natural gas with direct action NGV1 2025 © CdLTRI coltri.com 10

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Technical data Intake pressure Nominal pressure Filling pressure Maximum working pressure Operating voltage, standard Other operating voltage Oil change interval Natural gas - Methane Max. 200 millibars 250 bar CNG HD 330 ET CNG HD 400 ET CNG HD 550 ETFlow rate 330 l/min 19,8 m3/h 11,7 cfm Purification system Hyperfilter x 2 * Standard model. Weight and dimensions may vary depending on accessories. Type Operating voltage/frequency Different voltage / frequency available on request. Three-phase electric Rated current Speed (RPM) Protection class

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HYPERFILTER purification system Purification system Operating pressure (Standard) Maximum operating pressure (PS) When using a filter cartridge of the type shown in the figure. Standard equipments Inlet filter Refueling nozzle natural gas with direct action NGV1 Low pressure switch at the gas inlet

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Intake pressure Cylinder bore 1st stage Cylinder bore 2nd stage Cylinder bore 3rd stage Cylinder bore 4th stage Direction of rotation (from flywheel side) Counter clockwise (Left) Drive type Intermediate pressure 1st stage Intermediate pressure 2nd stage

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Inlet pressure (bar)CNG BOOSTER RC 3 KW l/min Min. 55 - Max. 160

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Technical data Intake pressure Nominal pressure Filling pressure Maximum working pressure Operating voltage, standard Other operating voltage Oil change interval CNG BOOSTER RC 3 KW CNG BOOSTER RC 4 KW CNG BOOSTER RC 5.5 KW Min. 55 - Max. 160 l/min Flow rate Min. 3,3 - Max. 9,6 m3/h * Standard model. Weight and dimensions may vary depending on accessories. Three-phase electric Operating voltage/frequency Different voltage / frequency available on request. Protection class

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Compressor block CNG BOOSTER RC 3 KW CNG BOOSTER RC 4 KW CNG BOOSTER RC 5.5 KW Cylinder bore 2nd stage Cylinder bore 3rd stage Direction of rotation (from flywheel side) Drive type Counter clockwise (Left) Intermediate pressure 1st stage Intermediate pressure 2nd stage

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Inlet pressure (bar)Inlet pressure (psi)CNG BOOSTER HD 9 KW l/min Min. 330 - Max. 600

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Technical data Type of gas Intake pressure Nominal pressure Filling pressure Maximum working pressure Operating voltage, standard Other operating voltage CNG BOOSTER HD 9 KW CNG BOOSTER HD 11 KW CNG BOOSTER HD 15 KW Min. 330 - Max. 600 l/min Flow rate Min. 19,8 - Max. 36 m3/h * Standard model. Weight and dimensions may vary depending on accessories. Three-phase electric Operating voltage/frequency Different voltage / frequency available on request. Protection class

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CNG Catalogue

CNG Catalogue

Catalog excerpts

All AEROTECNICA COLTRI S.p.A. catalogs and technical brochures