Aluminium, PPR, GI
Aluminium vs PPRC for compressed air systems
A side-by-side look at why aluminium piping has become the industrial standard, and where PPRC piping fits—and falls short—for compressed air.
Why aluminium pipes for industrial compressed air systems?
Aluminium pipes are widely used in industrial compressed air systems because they offer a strong balance of performance, durability, and ease of installation compared to steel or plastic alternatives.
1) Corrosion resistance
Compressed air systems generate condensing moisture, which can corrode traditional steel pipes from the inside.
- Naturally forms a protective oxide layer
- Does not rust like carbon steel
- Maintains clean internal surfaces over time
- Contamination of air tools and machinery
- Blockages and pressure drops
- Maintenance costs
2) Smooth internal surface = better airflow
Aluminium pipes have a very smooth bore, which lowers friction losses and helps maintain consistent pressure across the network.
How effective is PPRC for compressed air systems?
PPRC piping is commonly used for hot and cold water systems, but its suitability for compressed air applications is more limited and application-dependent.
Where PPRC can work
- Does not rust
- No internal scaling
- Smooth bore with low friction loss
- Heat-fusion joints
- Lightweight handling
- Lower labor cost
Major limitations
- Can split or rupture under pressure
- Failure may be sudden
- Potential fragmentation risk
Pressure ratings drop significantly as temperature increases.
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