Air Release / Combination Air Valve — Gases & Elemental/Inorganic Misc
Named chemicals
What LibertyCES's vendor documentation shows
Moderate and deliberately scoped: this is air/vacuum management in a liquid line, not aggressive-gas service, but it belongs here because the medium handled is the gas phase. The finding worth publishing is the D20/D25/D26 continuous air gap design — a conical body / funnel-shaped lower body that physically separates the water or leach solution from the sealing mechanism, so scale and mineral deposits cannot foul the seal. That is a specific answer to closed-loop leach-solution scaling, the documented failure mode for conventional float-seal air valves in mining 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
Products cited for this service
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 Air Release / Combination Air Valve compatible with Gases & Elemental/Inorganic Misc?
Moderate and deliberately scoped: this is air/vacuum management in a liquid line, not aggressive-gas service, but it belongs here because the medium handled is the gas phase. The finding worth publishing is the D20/D25/D26 continuous air gap design — a conical body / funnel-shaped lower body that physically separates the water or leach solution from the sealing mechanism, so scale and mineral deposits cannot foul the seal. That is a specific answer to closed-loop leach-solution scaling, the documented failure mode for conventional float-seal air valves in mining service. This is moderate evidence.
What materials are documented for Air Release / Combination Air Valve 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. Chemical compatibility depends on exact concentration, temperature, and duty cycle — confirm with a spec review before final specification.
What specific Gases & Elemental/Inorganic Misc chemicals does this cover?
Named chemicals in this documentation: entrained air, vacuum, off-gas from leach solutions, carbon dioxide.
What products are cited for Air Release / Combination Air Valve in Gases & Elemental/Inorganic Misc service?
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).