Reciprocating compressors for process gas and air - header
Reciprocating compressors for process gas and air

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Reciprocating Compressors - main
Over 90 years of experience in the compression of all types and mixtures of gases.
SIAD supplies oil-free or lubricated, low, moderate and high-speed reciprocating compressors for process gas and air, with water-or air-cooled cylinders in compliance to Clients’ requirements and to applicable industry standard, including: API618, ISO 13631, API-11 P, CGA, EIGA, ETC
SIAD compressors are designed and manufactured according to the “lean” methodology, which. combines a modular design with the integration of digital systems, minimizing waste and maximizing performance. All compressors can be supported by our Remote Assistance and Remote Monitoring Services coupled with the ongoing assistance of SIAD technicians in the maintenance and optimal operation of the compressors.
Safety, quality, reliability, efficiency, availability, maintainability and connectivity are the hallmark features designed into every SIAD process and air reciprocating compressor. With more than 90 years of experience in providing process and air reciprocating compressors, SIAD has developed an expertise known worldwide and is the compressor of choice from the most demanding to the most basic reciprocating compression requirements.
Range of Reciprocating Compressors for Process Gases and Air (Metric and Imperial Units) | ||
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Stages | 1/2/3/4/5/6 | 1/2/3/4/5/6 |
Maximum suction Volume | 90 000 m3/h | 3,240,000 scfh |
Maximum power | 8 700 kW | 11,850 HP |
Maximum delivery pressure | 550 bar | 7,975 psi |
Types of cylinder configuration | Vertical, V, W, Horizontal | Vertical, V, W, Horizontal |
Shaft speed | from 300 to 1 500 rpm | from 300 to 1,500 rpm |
SIAD compressors can manage all types of gases: inert, oxidizing, toxic, explosive and corrosive.
Speciality | Gas |
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Oxidizing | Nitrous oxide, Oxygen |
Corrosives | Wet Carbon Dioxide |
Explosives | Acetylene, Butane, Ethane, Ethylene, Hydrocarbons, Hydrogen, Methane, Propylene |
Inerts | Air, Argon, Nitrogen, Helium, Freon |
Toxics | Ammonia, Carbon monoxide |
SIAD can supply an integrated compression package design according to the main construction and safety International Standard. Compressors are designed based on customer needs.
Pressure Vessel engineering
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Engineering Standards:
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SIAD reciprocating compressors are designed consistent with the highest level of engineering and technology, including:
- Pulsation, acoustical, torsional, bending analysis.
- Finite elements structural verification.
- Fluid-dynamic verification Fatigue calculation.
- Measurement and verification of vibration, ultrasonic, thermography, radiography.
- Chemical, physical and metal particles oil analysis.
Software for Mechanical calculation
3D modelling, static elastic Fem analysis, infinite life fatigue analysis
Elastic bodies motion of the complete frame, Fem (Finite Element Mechanical analysis
Multiaxial fatigue analysis with the algorithm of Dang Van or Brown – Miller – Morrow
Computational Fluid Dynamics (CFD) Software
The gas paths are studied by the computer with most advanced CFD software with the aim to reach at the same time a small clearance volume, for a greater volumetric efficiency, and large and well profiled passages for low pressure losses.
SIAD offers a complete range of compressors with advanced technology for a number of applications in a variety of industries.
Industries/applications Served:
- Cement
- Chemical
- Electronics
- Energy and Power Generation
- Food & Beverage
- Industrial Gases
- Glass
- Cold gases transport (LNG)
- Metal Production
- Mining
- Oil & Gas Exploration and Production
- Petrochemical
- Pulp and paper
- Refinery
- Water Treatment and Transmission
- Clean Energy- Hydrogen Conditioning, Biofuels, Hydrogen Mobility, etc
- De-carbonization- Carbon Capture Usage and Storage