Butterfly Valves Types and Different Butterfly Valve Classifications

Understanding the different types of Butterfly Valves is crucial for selecting the right valve for your industrial or commercial piping system. Butterfly valves come in various designs, materials, and operating mechanisms, each tailored to specific applications and fluid control requirements. This guide explores the main butterfly valves types, their classifications, and key considerations to help you make informed decisions.

1. Butterfly Valves Types by Structure

  ● Wafer Butterfly Valve: The most common type, installed between two pipe flanges. 

  ● Lug Butterfly Valve: Features threaded inserts (lugs) allowing independent installation from downstream piping. 

  ● Double Offset Butterfly Valve (High-Performance Butterfly Valve):Incorporates two offsets in the shaft to minimize disc-seat friction. 

  ● Triple Offset Butterfly Valve: Adds a third offset angle for metal-to-metal sealing with zero leakage. 

2. Butterfly Valves Types by Actuation Method

  ● Manual Butterfly Valve:Operated by hand using a lever or handwheel. 

  ● Electric Butterfly Valve: Driven by electric actuators for automated control and remote operation.

  ● Pneumatic Butterfly Valve: Uses compressed air for fast and precise valve actuation, popular in industrial automation.

  ● Hydraulic Butterfly Valve: Employs hydraulic pressure to operate valves in heavy-duty systems requiring significant force.

3. Butterfly Valves Types by Material

  ● Cast Iron Butterfly Valve: Cost-effective, suitable for low-pressure and non-corrosive fluids. Yaxing Valve is focus on this type valve. 

  ● Ductile Iron Butterfly Valve: Offers improved strength and pressure resistance over cast iron variants.

  ● Stainless Steel Butterfly Valve: Ideal for corrosive and high-temperature fluids, ensuring durability and longevity.

  ● PVC/Plastic Butterfly Valve: Lightweight and corrosion-resistant, perfect for low-pressure water and chemical applications.

4. Butterfly Valves Types by Valve Disc Design

  ● Full Circle Valve Disc: Standard design providing low flow resistance, suitable for most fluid control systems.

  ● Specialty Disc Shapes (Oval, Rectangular): Used in specific applications where flow dynamics demand customized valve disc shapes.