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AEROTECNICA COLTRI S.p.A.
Pumping Units Compatibility

Pumping Units Compatibility

Product catalog summary

Pumping Units Overview
This document provides a comprehensive guide on the compatibility between various pumping units and compressor frames, focusing on specifications, components, and operational parameters.

Specifications

Charging Rate: Measured during 10-liter cylinder filling from 0-200 bar with a tolerance of +/- 5% at +20°C ambient temperature. Rates vary across models, e.g., MCH 6 at 100 l/min and MCH 36 at 750 l/min.
Max Working Pressure: Ranges from 250 bar to 420 bar depending on the model.
Speed RPM: Varies by model, e.g., MCH 6 at 2,500 RPM and MCH 36 at 1,250 RPM.
Number of Stages and Cylinders: Typically 3 or 4 stages with corresponding cylinder bores specified for each stage.
Drive Type: V-belt A type is standard across models.
Oil Amount: Varies by model, e.g., MCH 6 uses 600 cc/ml, while MCH 36 uses 4 liters.

Components and Features

Lubrication: Models use either splash or forced lubrication systems.
Materials: Stainless steel AISI 316 for pipes and fittings, forged aluminum connecting rods, and die-cast aluminum cylinders with nicasil coating.
Safety Features: Safety valves are installed after each compression stage, with CE certification ensuring compliance with safety standards.
Additional Features: Intermediate and high-pressure condensate separators, synthetic oil formulation for high-pressure compressors, and roller bearings for intensive workloads.

Recommendations

Ensure compatibility of pumping units with the specified compressor frames.
Regular maintenance of lubrication systems and safety valves is crucial for optimal performance.
Adhere to specified operational parameters to maintain efficiency and safety.

Overview: The document provides detailed specifications and components of various booster pumping units designed for different applications such as CNG compression and industrial use. Each unit is described with its technical specifications, components, and operational parameters.

Specifications:

Materials: Stainless steel AISI 316 for pipes, fittings, and nuts; forged aluminum connecting rods; forged steel crankshaft; special cast iron cylinders.
Lubrication: Forced lubrication with low pressure gear pump and splash lubrication systems.
Oil: Synthetic Oil Coltri ST 755 formulated for high-pressure compressors.
Valves: High-flow valves for second and third stages, stainless steel valves for durability.
Bearings: Roller bearings designed for intensive workloads.

Performance Parameters:

Charging Rate: Varies across models, with rates measured during 10-liter cylinder filling from 0-200 bar, with a tolerance of +/- 5% at 20°C ambient temperature.
Intake Pressure: Ranges from a minimum of 2 bar to a maximum of 8 bar.
Max Working Pressure: Up to 420 bar depending on the model.
Speed: RPM varies by model, with options ranging from 960 to 1,660 RPM.
Number of Stages and Cylinders: Models feature 2 to 3 stages and corresponding cylinders, with some models including additional service stages.

Components and Features:

Condensate Separators: Intermediate and high-pressure final condensate separators are included for efficient operation.
Safety Features: Pressure switch valves and safety valves are installed after each compression stage.
Design: Special cast iron cylinders with low roughness lapping and die-cast aluminum cylinders with nicasil coating for enhanced performance.
Certification: All units are CE certified, ensuring compliance with European safety standards.

Applications: The units are suitable for various fields including firefighting, paintball/PCP, racing, diving, and industrial applications.

Catalog excerpts

REFERENCE GUIDE TO COMPATIBILITY BETWEEN PUMPING UNITS AND COMPRESSOR FRAME

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Pumping Units with filter and separator Charging rate Measured during 10 liters cylinder filling from 0-200 bar tolerance +/- 5% at + 20 ° C ambient temperature. Cylinder bore 1st stage Cylinder bore 2nd stage Cylinder bore 3rd stage Cylinder bore 4th stage Direction of rotation (from flywheel side) Right - clockwise Drive type Intake pressure

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Guide Pumping Units • Splash lubrification with conrod pin immersed in oil • Pipes, fitting and nuts in stainless steel AISI 316 • Forged aluminium connection rods • Aluminium die cast crankcase machined on horizontal CNC machine to ensure maximum precision • Forged steel crankshaft with hardened rings • Safety valve on the third stage • Final safety valve PED certified ICON PETROL MINI SILENT

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Pumping Units Charging rate Measured during 10 liters cylinder filling from 0-200 bar tolerance +/- 5% at + 20 ° C ambient temperature. Cylinder bore 1st stage Cylinder bore 2nd stage Cylinder bore 3rd stage Direction of rotation (from flywheel side) Right - clockwise Drive type Intake pressure

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Guide Pumping Units • Splash lubrification with conrod pin immersed in oil • Pipes, fitting and nuts in stainless steel AISI 316 • Intermediate condensate separator after the second stage • Synthetic Oil Coltri ST 755 with special formulation for HP compressors • High pressure final condensate separator • Safety valves after each stage of compression • Die-cast aluminium cylinders with barrel coating in nicasil • Forged aluminum connecting rods • Forged steel crankshaft • Stainless steel second and third stage valves • Roller Bearings for intensive work load • Third stage in tempered steel with...

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Guide Pumping Units • Forced lubrification with low pressure gear pump • Pipes, fitting and nuts in stainless steel AISI 316 • Intermediate condensate separator after the second stage • Synthetic Oil Coltri ST 755 with special formulation for HP compressors • High pressure final condensate separator double effect • Safety valves after each stage of compression • Die-cast aluminium cylinders with barrel coating in nicasil • Forged aluminum connecting rods • Forged steel crankshaft • Stainless steel second and third stage valves • Roller Bearings for intensive work load • Third stage in tempered...

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Pumping Units Charging rate Measured during 10 liters cylinder filling from 0-200 bar tolerance +/- 5% at + 20 ° C ambient temperature. 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 Intake pressure

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Pumping Units Compatibility

Pumping Units Compatibility

Catalog excerpts

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