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Chemical Compatibility

Pipe — Acids

Strong evidence

30+ years spec experience. Send James the process data and get a real answer — not a catalog page.

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Named chemicals

Sulfuric Acid (93%)Hydrochloric AcidHydrofluosilicic Acid

What LibertyCES's vendor documentation shows

26 real named installed-project case list with field concentrations, several exceeding general resistance tables (93% sulfuric acid seen twice).

Materials documented for this service

  • Advanced PE (NSF/ANSI/CAN 61-G)
  • ECTFE/Halar (chosen over Advanced PE for H2SO4 in one RO plant)

Products cited for this service

Asahi Advanced PE / Chem Proline / Ultra ProlineNetafim FlexNet HP (heap leach)

Real Specifications

Sulfuric acid resistance ceiling (general table)Resistant up to 85% concentration, PVC/FKM valve pairingasahi-america-advanced-pe-piping.md
93% sulfuric acid real field installsAnomatic OH (2013, replaced CPVC) and Chemco CA (2013, replaced PVC) both ran 93% H2SO4 in Chem Proline, above the general table's stated 85% ceilingasahi-america-advanced-pe-piping.md
Hydrochloric acid resistanceResistant to 37% HCl, PVC/FKM valve pairing, Vented Ball Valves required for off-gas reliefasahi-america-advanced-pe-piping.md
Hydrofluosilicic acid resistanceResistant up to 50% concentration (fluoridation dosing), PVC/EPDM valve pairingasahi-america-advanced-pe-piping.md
ALD70 valve diaphragm sulfuric acid limit38°C max — far below the pipe's 85%-concentration ratingnetafim-mining-heap-leaching.md
Install / Failure Note

Two of Asahi's 26 documented Advanced PE installations ran 93% sulfuric acid — Anomatic OH and Chemco CA, both 2013, both replacing failed CPVC or PVC — above the general resistance table's own stated 85% ceiling; a real field data point to flag to engineering before quoting, not an automatic green light past 85%.

Acid service piping fails at whichever component has the lowest real ceiling, not the pipe body — Netafim's own ALD70 valve diaphragm caps sulfuric acid at 38°C while Advanced PE pipe carries it to 85% concentration at operating temperature, exactly the kind of mismatch a category-level "acid-resistant piping" quote misses.

Every material and product claim on this page traces to real, vendor-published documentation on file with LibertyCES. Chemical compatibility depends on exact concentration, temperature, and duty cycle — confirm current specifications with the manufacturer and request a spec review before final specification.

FAQ

Is Pipe compatible with Acids?

26 real named installed-project case list with field concentrations, several exceeding general resistance tables (93% sulfuric acid seen twice). This is strong evidence.

What materials are documented for Pipe in Acids service?

Materials documented for this service: Advanced PE (NSF/ANSI/CAN 61-G), ECTFE/Halar (chosen over Advanced PE for H2SO4 in one RO plant). Chemical compatibility depends on exact concentration, temperature, and duty cycle — confirm with a spec review before final specification.

What specific Acids chemicals does this cover?

Named chemicals in this documentation: Sulfuric Acid (93%), Hydrochloric Acid, Hydrofluosilicic Acid.

What products are cited for Pipe in Acids service?

Documented examples include Asahi Advanced PE / Chem Proline / Ultra Proline, Netafim FlexNet HP (heap leach).

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