Industrial Pipe System Selection Guide (Air vs Nitrogen vs Vacuum vs Oil)

Choosing the right industrial piping system depends on the type of media being transported, operating pressure, cleanliness requirements and system performance expectations.

Compressed air, nitrogen, vacuum and oil systems all require different design approaches to ensure efficiency, reliability and safety.

This guide explains how to select the correct aluminium piping system for your application and how each system differs in design and performance.

For a full system overview, see: What Is Unipipe Aluminium Industrial Piping?.

Why System Selection Matters

Each industrial system behaves differently.

Compressed air focuses on pressure stability. Nitrogen requires cleanliness and purity. Vacuum depends on airflow efficiency. Oil systems demand durability and leak control.

Selecting the wrong system can lead to performance issues, contamination, energy loss or premature failure.

Overview of Industrial Piping Systems

System Type Primary Function Key Design Focus Typical Pressure Range
Compressed Air Powering tools and equipment Pressure stability and flow Up to 232 PSI
Nitrogen / Inert Gas Clean gas supply Purity and leak prevention Up to 232 PSI
Vacuum Air removal and suction Flow efficiency and airtight sealing Up to 29.6 inHg
Oil / Lubrication Fluid distribution Leak prevention and durability Up to 232 PSI

Compressed Air Systems

Compressed air systems are used across most industrial environments to power tools, automation and production equipment.

Design priorities:

  • Consistent pressure across the system
  • Correct pipe sizing
  • Minimised pressure drop
  • Efficient system layout (ring main)

Learn more: UnipipeAIR Technical Guide

System design reference: Compressed Air Design Guide

Nitrogen and Inert Gas Systems

Nitrogen systems are used where gas purity and contamination control are critical.

Design priorities:

  • Clean internal pipe surfaces
  • Leak-free connections
  • Material compatibility
  • Stable pressure delivery

Learn more: UnipipeNITRO Industrial Nitrogen Guide

Vacuum Systems

Vacuum systems operate by removing air rather than supplying it. Performance depends on airflow efficiency and airtight integrity.

Design priorities:

  • Minimised airflow resistance
  • Large pipe diameters where required
  • Short, efficient pipe runs
  • Leak prevention

Learn more: UnipipeVAC Vacuum System Guide

Oil and Lubrication Systems

Oil systems are used to deliver lubrication to machinery and equipment.

Design priorities:

  • Leak prevention
  • Durability under fluid load
  • Resistance to corrosion
  • System reliability over time

Explore system applications: UnipipeOIL Systems

How to Choose the Right System

1. Identify the Media Type

Start with what you are transporting: air, gas, vacuum or fluid.

2. Confirm Pressure Requirements

Ensure the system is rated for your operating pressure.

For high-pressure systems: UnipipeHP Handbook

3. Assess Cleanliness Requirements

Applications such as food, medical or electronics require higher levels of purity.

4. Evaluate Installation Environment

Consider exposure to moisture, chemicals, temperature and accessibility.

5. Plan for Future Expansion

Select a system that allows modification without major downtime.

Common Mistakes When Selecting a System

  • Choosing based on cost alone
  • Ignoring pressure requirements
  • Overlooking contamination risks
  • Using incorrect pipe sizing
  • Not planning for expansion

Why Aluminium Systems Are Widely Used Across All Applications

Aluminium piping systems provide a consistent solution across multiple industrial applications.

  • Lightweight and easy to install
  • Corrosion-resistant internal surfaces
  • Reduced pressure drop
  • Modular system design
  • Reusable fittings

Compare materials: Best Material for Compressed Air Piping

Frequently Asked Questions

Can one piping system handle multiple applications?

Different systems are typically designed for specific media types, but modular aluminium systems can support multiple applications within a facility.

What is the most efficient compressed air system design?

A correctly sized ring main system typically provides the best performance.

What is the main risk in nitrogen systems?

Contamination and leaks, which can affect gas purity and safety.

Why are vacuum systems sensitive to leaks?

Leaks allow air to enter the system, reducing efficiency and increasing energy demand.

Are aluminium systems suitable for all applications?

Aluminium systems are widely used across compressed air, nitrogen, vacuum and fluid applications when correctly designed.

Real-World Application Example

Environment: Multi-process manufacturing facility

Problem: Separate systems required for air, nitrogen and vacuum

Solution: Integrated modular aluminium piping systems across all applications

Result: Improved efficiency, simplified installation and future expansion capability

Why Choose Air Energy

  • Technical Expertise Since 1993 – Over 2,000 industrial installations across mining, aquaculture, manufacturing, and remote sites

  • Multi-Industry Experience – Experts in compressed air, fuel, water, and process piping systems

  • Project Support – Our technical team ensures safe, efficient, and long-lasting installations

With Air Energy, you get a piping solution designed for performance, reliability, and long-term operational efficiency.