Valves

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Product BrochureAir release valves, also known as air vents or air bleed valves, are essential components in fluid piping systems designed to automatically release trapped air or gases, ensuring optimal system performance and efficiency. These valves are typically installed at high points or locations where air tends to accumulate within pipelines, such as near pump stations, bends, or changes in elevation.

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Technical Specifications: Valve connection with top opening vessel: 65 mm (2 ½”) NPSM (8 TPI) or 100mm (4”) Inlet, outlet, drain connections: 25mm BSPF quick release union straight. Maximum operating pressure: 4 kg/cm2 /6 Kg/cm2 for GF.

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.5 to 2inch
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Here's a comprehensive description of air valves:

1. Functionality:

   • Air valves are designed to release or expel trapped air or gas from piping systems, allowing the efficient flow of liquid (e.g., water, sewage, or other fluids) without air-related issues.

2. Operating Principle:

   • Air valves operate based on simple mechanical principles. When air accumulates in a pipeline due to the upward flow of fluid, the air valve automatically opens to release the trapped air, allowing it to escape from the system.

3. Types of Air Valves:

   • There are several types of air valves designed for specific applications and operating conditions:
     • Air Release Valves (ARVs): These valves are typically installed at high points in the pipeline to release air during system filling or operation.
     • Air Vacuum Valves (AVVs): AVVs are installed at high points and near pumps to prevent the formation of vacuum conditions by admitting air into the system when necessary.
     • Combination Air Valves: These valves combine the functions of air release and vacuum release into a single unit, providing comprehensive air management capabilities.

4. Construction and Design:

   • Air valves are typically constructed from durable materials such as ductile iron, stainless steel, or thermoplastics, depending on the application and environmental conditions.
   • They consist of a body housing the valve mechanism, an air release orifice, a float or diaphragm mechanism to control valve operation, and sealing elements to prevent leakage.

5. Operating Mechanism:

   • Air valves may utilize various operating mechanisms, including float-operated, diaphragm-operated, or combination mechanisms, to control the opening and closing of the valve based on the presence or absence of air.

6. Pressure Ratings: