PPCH FR Pneumatic Piping comparison

PPCH vs metal pipe for compressed air

Galvanised iron, mild steel and stainless steel have been the default for compressed air. They corrode, scale and leak at threads, and the compressor pays for all three every hour the plant runs.

Compare on your line schedule PPCH specifications

Side by side

Figures from the Anjney PPCH catalogue and technical notes. For design work, confirm against the current data sheet.

Parameter	PPCH FR Pneumatic Piping	Metal pipe (GI, MS, CI, SS)
Surface roughness, Ra	0.1–0.3 µm	1.0–1.7 µm
Hazen–Williams C	145–150	130–135
Jointing	Socket fusion and electrofusion; electrically heated, no open flame	Threaded or welded; hot-work permit and fire watch
Joint integrity	Homogeneous fused joint, no leak path to age	Threads relax with vibration and temperature swings
Wall conductivity	0.135 Btu/hr·ft·°F	43.66 Btu/hr·ft·°F (steel)
Internal surface	Non-corroding, non-scaling	Corrodes and scales; rust fines carried to tools
Adding a drop	One fusion joint	Cut, weld or re-thread, permit, re-test
Maintenance	Nil	Recurring

What it means on your plant

Less pressure drop
A smooth, non-scaling bore and no thread restrictions keep pressure drop low for the life of the line.
Drier air
With wall conductivity two orders of magnitude lower than steel, air stays above its dew point longer and less condensate forms.
Cleaner air
No rust or oxide fines reach valves, cylinders and air tools.

Other comparisons

Enquiry

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Tell us the service, pipe sizes and approximate run lengths. Our technical sales team sizes the network and returns a bill of material, with an installed-cost comparison against your current specification.