Air Valve
LibertyCES has documented Air Valve in Mining and Agriculture/Irrigation. Chemical compatibility is documented for Acids and Salts/Brines. Documented models include Netafim D20/D25/D26, Netafim D-Series air valves and Netafim D20/D25/D26/D40/D40L air valves. Send James the fluid, concentration, temperature and flow for a free spec review.
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Mining
Multi-source documentedAir valves engineered specifically for heap-leaching scale/fouling prevention.
Agriculture/Irrigation
Manufacturer-documentedNetafim's core irrigation air-valve product family, evidenced here via its mining application variant.
Chemical compatibility
Acids
Manufacturer-documentedAir-gap design physically separates leach solution from the sealing mechanism to prevent scale/mineral fouling.
Salts/Brines
Manufacturer-documentedAir valves used across both copper SX/EW and gold/silver cyanide heap-leach circuits.
Air Valve: models in the LibertyCES catalog
8 models across 3 product lines from 3 manufacturers. For most models that state them (the middle 80%): pressure to 232 psi (16.0 bar). Extremes are in the table.
| Model / line | Manufacturer | Type | Size / capacity / flow | Pressure | Temperature | Wetted material | Source |
|---|---|---|---|---|---|---|---|
| Pneumatic Actuators Series 79P PAG (CP79PN air-to-air, DP79PSN air-to-spring) | Asahi/America | Valve Actuator | 60-40441 in-lbs @80psi | 80 psi (5.5 bar) | -25–195 °F (-32–91 °C) | Rilsan-coated aluminum, glass-filled Polyamide, or 316SS | Asahi/America — Actuation Basics (Electric & Pneumatic Actuator Engineering Reference) |
| Air Valves DG10 | Netafim | Air Valve | - | 145 psi (10 bar) | 10 bar max | composite | Netafim Mining — Heap Leaching Products Catalog |
| Air Valves D40 | Netafim | Air Valve | - | 232 psi (16 bar) | 16 bar max | composite | Netafim Mining — Heap Leaching Products Catalog |
| Air Valves D40L | Netafim | Air Valve | - | 232 psi (16 bar) | 16 bar max | PP or reinforced nylon/PVDF/duplex/SST | Netafim Mining — Heap Leaching Products Catalog |
| Air Valves D20 | Netafim | Air Valve | - | 232 psi (16 bar) | 16 bar max | welded/cast steel or stainless | Netafim Mining — Heap Leaching Products Catalog |
| Air Valves D25 | Netafim | Air Valve | - | 145 psi (10 bar) | 10 bar max | reinforced nylon or stainless | Netafim Mining — Heap Leaching Products Catalog |
| Air Valves D26 | Netafim | Air Valve | - | 232 psi (16 bar) | 16 bar max | cast steel or stainless | Netafim Mining — Heap Leaching Products Catalog |
| D-025 Combination Air Valve for Wastewater D-025 / D-025L | ARI Valves (Aquestia) | Valve | 2in-4in (DN50-DN100); 0.7-150 psi (D-025), 0.7-250 psi (D-025L) | 1–150 psi (0.1–10.3 bar) | to 140 °F (to 60 °C) | n/a | Manufacturer documentation on file |
This table is part of the equipment catalog dataset (CSV and JSON).
Technical guides for Air Valve
Frequently Asked Questions
What industries use Air Valve?
LibertyCES has documented Air Valve specified across 2 sector applications, including Mining and Agriculture/Irrigation.
How is Air Valve used in Mining?
Air valves engineered specifically for heap-leaching scale/fouling prevention. — examples include Netafim D20/D25/D26. This is well-documented in LibertyCES's field data.
Can Air Valve handle Acids?
Air-gap design physically separates leach solution from the sealing mechanism to prevent scale/mineral fouling. Materials to confirm: Continuous air-gap seal design. Specific chemicals include Sulfuric Acid (heap leach).
Which chemicals can Air Valve handle?
LibertyCES has documented chemical compatibility records for Air Valve across 2 chemical families, including Acids, Salts/Brines.
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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated