Calculators›Compressor Selection
🔄

Compressor Selection Tool

Centrifugal vs Reciprocating Comparison

Compressor Type Selection Tool
Compare centrifugal and reciprocating compressors for your application. Based on application map and industry guidelines.

Operating Conditions

acfm
Actual cubic feet per minute at inlet
psig
psig
°F

Gas Properties

relative to air
Natural gas ~0.60-0.70

Application Requirements

Flow variation from design point

Application Map Reference (NGPSA)

Parameter Reciprocating Centrifugal
Max Discharge12,000 psi (50,000 hyper)1,450 psi (horiz), 15,000 psi (barrel)
Max FlowLimited by cylinders400,000 acfm
Turndown100% to 20% or lower20-30% (fixed), 40-50% (variable)
ReliabilityLower (more wearing parts)98-99% availability
Typical CR/stage1.2 to 4.0Depends on MW & stages

Learn the Theory

Understand compressor types, selection criteria, and design considerations

Read Engineering Guide

Selection Guidelines

Reciprocating: Better for low flow, high pressure, high turndown, low MW gases (hydrogen), variable loads.
Centrifugal: Better for high flow, moderate pressure, high reliability, continuous duty, lower maintenance.
Either may work: Medium flow/pressure applications often have viable solutions with both types.

Related Calculators

📊

Compression Ratio

Calculate compression ratio and staging
💨

Gas Density

Calculate gas density at operating conditions
⚡

Compressor HP

Estimate compressor power requirements
📈

Volumetric Efficiency

Calculate cylinder volumetric efficiency