Air Release / Combination Air Valve — Gases & Elemental/Inorganic Misc
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LibertyCES has documented Air Release / Combination Air Valve in Gases & Elemental/Inorganic Misc service, including entrained air, vacuum and off-gas from leach solutions. Wetted materials to confirm: Reinforced nylon, Polypropylene, PVDF and Stainless steel 316. Documented models include Netafim DG10 and Netafim D40. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a free spec review.
Materials documented for this service
- Reinforced nylon
- Polypropylene
- PVDF
- Stainless steel 316
- Super duplex
- Hastelloy springs
- Fusion-bonded epoxy coating per DIN 30677-2 on cast steel/ductile iron bodies
Products cited for this service
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| DG10 air-release valve pressure range | 0.1-10 bar, high-strength composite body, patented rolling-seal mechanism less sensitive to pressure differential than a direct float seal | Netafim Mining — Heap Leaching Products Catalog |
| D26 combination valve | 0.05-16 bar, full-bore, optional adjustable non-slam (NS) check-valve discharge throttling in 1/2/3-hole configurations | Netafim Mining — Heap Leaching Products Catalog |
| D-series shared materials | Reinforced nylon, polypropylene, PVDF, 316 stainless steel, super duplex, and Hastelloy springs; fusion-bonded epoxy coating per DIN 30677-2 on cast steel/ductile iron bodies | Netafim Mining — Heap Leaching Products Catalog |
The D20/D25/D26 continuous air-gap design — a conical or funnel-shaped lower body — physically separates the leach solution from the sealing mechanism specifically so scale and mineral deposits can't foul the seal; that's the documented failure mode for conventional float-seal air valves in closed-loop leach-solution service.
This is air/vacuum management in a liquid line, not aggressive-gas service in the strict sense, but the D20/D25/D26's air-gap design is a specific engineering answer to closed-loop leach-solution scaling — the documented failure mode for conventional float-seal air valves in mining service, not a generic durability claim.
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 Release / Combination Air Valve handle Gases & Elemental/Inorganic Misc?
LibertyCES has documented Air Release / Combination Air Valve in Gases & Elemental/Inorganic Misc service.
What wetted materials should Air Release / Combination Air Valve use in Gases & Elemental/Inorganic Misc service?
Materials documented for this service: Reinforced nylon, Polypropylene, PVDF, Stainless steel 316, Super duplex, Hastelloy springs, Fusion-bonded epoxy coating per DIN 30677-2 on cast steel/ductile iron bodies. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a spec review before final specification.
Which Gases & Elemental/Inorganic Misc chemicals does this cover?
Named chemicals in this documentation: entrained air, vacuum, off-gas from leach solutions, carbon dioxide.
Which Air Release / Combination Air Valve models are documented for Gases & Elemental/Inorganic Misc?
Documented examples include Netafim DG10 (air release only, 0.1-10 bar, high-strength composite body, patented rolling-seal mechanism less sensitive to pressure differential than a direct float seal), Netafim D40 (combination air release + air/vacuum, 0.2-16 bar), Netafim D40L (combination for liquids with suspended solids; PP 10 bar, reinforced nylon-PVDF-Duplex-SST 16 bar), Netafim D20 (combination for mining conduction systems, 0.05-16 bar, continuous air gap design), Netafim D25 (reduced-bore compact, non-clean water, 0.05-10 bar), Netafim D26 (full-bore, non-clean water/mining, 0.05-16 bar, optional adjustable non-slam check-valve discharge throttling in 1/2/3-hole configurations).
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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated