

Armstrong 1-AVC/1-AVCW Transparent Air Vent Valve - Efficient automatic air release for liquid and ozone systems. Transparent body enables visual monitoring, corrosion-resistant construction ensures longevity, and no liquid loss during operation. Maximum differential pressure: 1.0MPa.


Armstrong 1-AVC/1-AVCW Transparent Air Vent Valve is a high-efficiency air release solution designed for liquid and ozone systems. It utilizes a free-floating ball mechanism for automatic air discharge without external power. The transparent body provides clear visibility of internal operations, allowing early detection of potential issues before they escalate into failures. Constructed with stainless steel and corrosion-resistant materials, this valve ensures long-term reliable performance while reducing energy consumption compared to manual venting methods. It is widely applied in various fluid systems and ozone water purification processes.
The transparent body allows operators to monitor valve performance without disassembly, eliminating unnecessary maintenance costs. Early detection of anomalies helps prevent costly downtime and repairs.
The reliable float mechanism automatically opens only when air or gas is present, completely eliminating liquid loss associated with manual venting. This improves overall system efficiency and reduces operational costs.
Engineered with reinforced nylon, polycarbonate, and T-316 stainless steel components, the valve withstands harsh media exposure. All critical internal parts are constructed from stainless steel, minimizing maintenance requirements and extending service life.
The free-floating ball design ensures a tight seal against the valve seat, preventing liquid leakage. The pivot-free mechanism eliminates wear points, while reinforced components enhance durability for long-term operation.


| Parameter | 1-AVC Model | 1-AVCW Model |
|---|---|---|
| Inlet Nominal Diameter (DN) | 15, 20 | 20 |
| Replacement Inlet DN | 15, 20 | 15 |
| Outlet Nominal Diameter (DN) | 15 | 15 |
| Dimension A (mm) | 89 | 89 |
| Dimension B (mm) | 171 | 172 |
| Dimension C (mm) | 152 | 152 |
| Maximum Allowable Pressure | 1.0MPa@65°C | 1.0MPa@66°C |
| Maximum Working Differential Pressure | 1.0MPa | 1.0MPa |
| Medium Specific Gravity Range | 0.80-1.00 | 0.80-1.00 |
| Weight | 0.45 kg | 0.5 kg |
| Application | General liquid venting | Ozone system venting |
| Differential Pressure (MPa) | Orifice Size | Capacity (m³/hr) |
|---|---|---|
| 0.10 | 1/8" | 7.3 |
| 0.20 | 1/8" | 11.0 |
| 0.35 | 1/8" | 16.1 |
| 0.50 | 1/8" | 22.2 |
| 0.70 | 1/8" | 28.7 |
| 0.85 | 1/8" | 34.8 |
| 1.05 | 1/8" | 41.3 |

| Component | Material |
|---|---|
| Valve Cover | Reinforced Nylon |
| Valve Body | Polycarbonate |
| "O"-Rings (Cover, Body, Joints) | Vulcanized Rubber |
| Float Mechanism | Stainless Steel |
| Disc & Seat | Stainless Steel |
| Pipe Fittings | Reinforced Nylon |
| Retaining Ring | Galvanized Steel |
| Component | Material |
|---|---|
| Valve Cap | Polycarbonate |
| Valve Body | Polycarbonate |
| "O"-Rings (Cover, Body, Joints) | Tetrapropylene Rubber |
| Float Rod & Screws | T316 Stainless Steel |
| Disc & Seat | T316 Stainless Steel |
| Accessories | Polycarbonate |
| Retaining Ring | Galvanized Steel |
| Model | Weight (kg) |
|---|---|
| 1-AVC | 0.45 |
| 1-AVCW | 0.5 |
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