Air Valve


What is an air valve, and what purpose does it serve in various applications?

An air valve is a mechanical device that controls airflow within a system or equipment. Its primary purpose is to manage the release and intake of air, ensuring the system operates efficiently and safely. Air Valves serve a crucial role in various applications across different industries. Water supply systems help prevent issues like air pockets, water hammer, and vacuum conditions, ensuring pipelines' continuous and smooth functioning and preventing damage to infrastructure.

In pneumatic systems, air valves regulate the airflow to actuate components like cylinders, motors, and actuators, enabling precise control and automation in industrial processes. Additionally, air valves are utilized in automotive systems, HVAC (Heating, Ventilation, and Air Conditioning) installations, and various other engineering applications, where managing airflow is essential for optimal performance and safety.

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Air Valves

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How do proper maintenance and regular servicing contribute to the longevity and performance of air valves?

Proper maintenance and regular servicing play a critical role in extending longevity and enhancing the performance of air valves. Adhering to scheduled maintenance routines can identify potential issues early, preventing minor problems from escalating into major malfunctions that could lead to costly downtime or replacement. Regular inspections allow for the detection and correction of wear and tear, corrosion, or debris buildup, which could impede the valve's smooth operation.

Lubrication of moving parts helps reduce friction, minimizing wear and extending the valve's lifespan. Cleaning and flushing the valve prevents the accumulation of contaminants that may obstruct airflow or impair functionality. Maintaining the air valve in optimal condition ensures its efficiency and reliability, ensuring seamless operations in various applications and saving time and expenses on repairs and replacements.

How do air valves function, and what are the different types available?

Air valves control the flow of air in a system through various mechanisms. The specific working principle depends on the type of air valve. One common type is the diaphragm valve, which utilizes a flexible diaphragm to regulate airflow. The diaphragm is raised when the valve opens, allowing air to pass through. Conversely, when the valve is closed, the diaphragm is pressed against the valve seat, blocking the airflow. Another type is the ball valve, which uses a spherical ball with a hole or port. By rotating the ball, the port can align with the flow path, enabling or restricting the airflow. Butterfly valves operate similarly but utilize a rotating disc instead of a ball. Other types include gate, globe, and check valves, each with unique mechanisms for controlling airflow.

Air Valve Specification

Design Standards ASME B16.34; DIN 3202; BS 5156
Class Range ANSI 125LB/ 150LB/ PN10/ PN16
Size Range 50 mm to 200 mm (1/2", 3/4", 1", 2", 3" NPT; 6" #125 Flg)
Pressure Rating PN 10, PN 16 (150 psi, 175 psi, 300 ps)
Handling sewage up to 5000 ppm
Temperature Range Water to 180°F
Body and Cover Ductile Iron ASTM A536 65-45-12
Orifice Button EPDM
External Cover Bolts ASTM F593 316SS
Application & uses Sewage and Sewage Pipelines
Wastewater and wastewater pumping stations
Residual and sewage water
Municipal and industrial wastewater treatment plants
Food Processing, Pharmaceutical and Brewing Systems

Air Valve Stock Availability

Stainless Steel Air Valve

Stainless Steel Air Valve

Due to its high level of corrosion resistance and steel construction, stainless steel valves are very durable. Steel valves can withstand extremes in temperature, both high and low. Brass or plastic valves are frequently only rated to operate in a narrower temperature range than steel valves.

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Carbon Steel Air Valve

Carbon Steel Air Valve

In hydraulic-based applications, carbon steel valves are used because of their exceptional resistance to the corrosive tendencies of water and other liquids. Its high carbon concentration strengthens the valve mechanism, increases its longevity, and gives it exceptional mechanical properties.

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Cast Iron Air Valve

Cast Iron Air Valve

In utility systems in various industrial facilities, plumbing and air conditioning in buildings, fire fighting equipment, and water and sewer lines, cast iron valves are frequently utilised.

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Alloy Steel Air Valve

Alloy Steel Air Valve

Alloy Steel Valves created using materials that meet or surpass national and international standards. A valve made of alloy steel has three continuous flow actions, which are among its most important characteristics.

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Air Valve Component Name

Air Valve Component Name
1. Body PA, reinforced
2. Rolling seal EPDM rubber
3. Clamping key PA, reinforced
4. Float PP
5. O-ring NBR rubber
6. Base PA / brass

Air Valve Ready Stock

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Air Valves Applications and Uses

  • Distillery Plants
  • Sugar Industries
  • Process Industries
  • Power Plants
  • Refineries
  • Petrochemical Plants
Distillery Plants

Air Valves in Distillery Plants

Sugar Industries

Air Valves in Sugar Industries

Process Industries

Air Valve in Process Industries

Power Plants

Air Valve in Power Plants


Air Valve in Refineries

Petrochemical Plants

Air Valve in Petrochemical Plants

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