What is a Pneumatic Actuated Wafer Type Butterfly Valve?
A butterfly valve is used to control the flow of liquids or gases such as water, air, or gases. It consists of two discs that rotate around a central axis. When one disc is open, the other is closed, allowing precise flow control. Butterfly valves are commonly used for large diameter pipes or hoses in industrial systems, plants, and facilities, typically to control the flow of fluids like water, gases, or air.
The pneumatic actuated wafer type butterfly valve is specifically designed for tight spaces in piping systems, especially where non-corrosive fluids are used. These valves come in brass or stainless steel disc options and feature wafer or lug-type designs with flanged connections, making them ideal for use in water and other fluid applications. Pneumatic actuators control their opening and closing through air pressure, making them suitable for a wide range of industrial and commercial uses.
Product Features of Butterfly Valve:
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Body Material: GGG-40 Ductile Iron
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Disk Material: SS304 (Stainless Steel 304)
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Shaft Material: Stainless Steel
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Temperature Range: -10ºC to 110ºC
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Seal Material: EPDM (Ethylene Propylene Diene Monomer)
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Diameter Range: DN40 (1.5”) – DN300 (12”)
Applications of Butterfly Valve:
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Heating, Ventilation, and Air Conditioning (HVAC) Systems
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Water Treatment and Distribution Systems
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Mining Industry
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Shipbuilding and Drilling Platforms
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Food and Chemical Manufacturing
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Fire Fighting Systems
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Water, Seawater, Dust, Gas, Wastewater, and Air Control
Control Methods for Pneumatic Actuated Lug-Type Valve:
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On-Off Control: Simple open/close action, typically used for basic flow control.
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Proportional Control: Allows for more precise, adjustable flow control.
Construction of Butterfly Valve:
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Aluminum Extrusion: The cylinder surface is made with high-precision processing techniques to ensure resistance to both internal and external corrosion, providing a long service life and low friction coefficients.
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Symmetrical and Easy Mounting Position: Compact pistons made from special aluminum alloys allow quick operation and the ability to reverse the direction by simply swapping the pistons.
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Pinion: High-quality steel pinions are designed to work in all mounting angles (45°-90°) and align with the piston stroke for smooth operation.
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Bearings: Industrial-grade plastic bearings are designed to minimize friction and reduce wear on sliding surfaces, extending the valve's life.
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Gears: Precision-modulated gears ensure quiet, efficient operation at maximum performance.
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Stainless Steel Fasteners: Corrosion-resistant stainless steel fasteners provide robust reliability and long-term durability.
Compliance and Standards:
The valve and its components comply with the latest specifications, including the following standards:
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ISO 5211, DIN 3337, and VDI/VDE 3845 NAMUR standards.
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Solenoids, limit switches, and other accessories are easy to mount and dismount, and the products are interchangeable for ease of installation and maintenance.
Conclusion:
The Pneumatic Actuated Wafer Type Butterfly Valve provides reliable, efficient, and durable control for various fluid and gas applications, especially in industries like water treatment, HVAC systems, chemical processing, and more. With robust materials, precise engineering, and easy-to-operate pneumatic actuators, these valves are designed for long-term performance in demanding environments.