Air Valve — Acids
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LibertyCES has documented Air Valve in Acids service, including Sulfuric Acid. Wetted materials to confirm: Continuous air-gap seal design. Documented models include Netafim D20/D25/D26/D40/D40L air valves. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a free spec review.
Notes from the vendor documentation
Air-gap design physically separates leach solution from the sealing mechanism to prevent scale/mineral fouling.
Materials documented for this service
- Continuous air-gap seal design
Products cited for this service
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| D20 air-gap design | Continuous air gap design (conical body/funnel-shaped lower body) physically separates the leach solution from the sealing mechanism, 0.05-16 bar | Netafim Mining — Heap Leaching Products Catalog |
| D-series material spread | Reinforced nylon, polypropylene, PVDF, 316 stainless steel, super duplex, and Hastelloy springs across the D20/D25/D26/D40/D40L family | Netafim Mining — Heap Leaching Products Catalog |
| D40L rating for solids-bearing service | Polypropylene body rated to 10 bar, reinforced nylon-PVDF-Duplex-SST body rated to 16 bar, explicitly for liquids with suspended solids | Netafim Mining — Heap Leaching Products Catalog |
The air-gap design exists specifically to prevent scale and mineral deposits from fouling the seal on closed-loop leach-solution recirculation — a standard direct-float-seal air valve on a sulfuric heap-leach line is the documented failure mode this design was built to avoid.
Sulfuric heap-leach solution recirculates in a closed loop and concentrates dissolved solids over time — an air valve with a direct float seal will scale shut on that same loop, which is exactly the failure mode Netafim's air-gap body was built to avoid.
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
Can Air Valve handle Acids?
Air-gap design physically separates leach solution from the sealing mechanism to prevent scale/mineral fouling.
What wetted materials should Air Valve use in Acids service?
Materials documented for this service: Continuous air-gap seal design. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a spec review before final specification.
Which Acids chemicals does this cover?
Named chemicals in this documentation: Sulfuric Acid (heap leach).
Which Air Valve models are documented for Acids?
Documented examples include Netafim D20/D25/D26/D40/D40L air valves.
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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated