D-040 PVDF | Combination Air Valve for Industry
Descripción
The D-040 PVDF Combination Air Valve has the features of both an air release valve and an air & vacuum valve.
The air release component of the D-040 PVDF is designed to automatically release to the atmosphere small pockets of air as they accumulate along a pipeline when the pipeline or piping system is full and operating under pressure.
The air & vacuum component is designed to automatically discharge or admit large volumes of air during the filling or draining of a pipeline or piping system. This valve will open to relieve negative pressures whenever water column separation occurs.
The D-040 PVDF Combination Air Valve, manufactured from PVDF, is specially designed for industrial applications and is highly resistant to aggressive fluids.
Características principales
- Working pressure range: 0.2 - 16 bar.
- Testing pressure: 1.5 times the maximum working pressure of the air valve.
- Maximum working temperature: 60° C.
- Maximum intermittent temperature: 90° C.
Note: For applications requiring a working temperature above the maximum stated or below 50 C., please consult first with the A.R.I. Applications Engineering Dept.
- Reliable operation reduces water hammer incidents. - Dynamic design allows for high capacity air discharge while preventing premature closure.
- Lightweight, small dimensions, simple and reliable structure.
- The discharge outlet enables the connection of a vent/drain pipe
- The large size of the automatic air release orifice relative to the air valve body:
- Discharges air at high flow rates.
- Lessens the danger of its obstruction by debris.
- Utilizes the rolling seal mechanism, making it less sensitive to pressure differential than a direct float seal.
- Due to its light weight, the valve may be installed on plastic piping systems, as well as other lightweight piping systems.
- Corrosion resistant; body and internal parts made of high-strength PVDF, float made of foamed ASA, rolling seal made of viton.
Selección de la válvula
- The air valve is available with a wide size range: 1/2”, 3/4”, 1”, 2” threaded male connections, NPT or BSPT.
- The air valve is also available as a low pressure air valve, D-040 LP, with a pressure range of 0.5 – 6 bar, in reinforced nylon D-040, stainless steel D-040 STST and duplex D-040 DA, all 16 bar and in polypropylene D-040 PP in 10 bar.
Note
For best suitability, it is recommended to send the fluid chemical properties along with the valve request.
Upon ordering, please specify: model, size, working pressure, thread and flange standard and type of liquid.