
Choosing the Right Butterfly Valve for Industrial Applications

Butterfly valves are key components in many sectors like water treatment, HVAC systems, and chemical processing. They are characterized for their unfussy structure, small size, and rapid shut-off feature. Nonetheless, the process of selecting the appropriate butterfly valve type plays a critical role in the system’s effectiveness, safety, and durability. In this guide, we will specify three types, namely U Type Butterfly Valve, Extension Stem Butterfly Valve, and PN16 Butterfly Valve, and discuss the applications of each.
1. U Type Butterfly Valve
The U Type Butterfly Valve is a popular choice in industrial applications that require a tight shut-off and reliable performance. It features a U-shaped body design, offering high strength and durability, making it suitable for handling water, gas, and chemical pipelines.
Key features:
- High sealing performance
- Corrosion-resistant materials
- Lightweight and compact design
- Simple installation and maintenance
This type of butterfly valve is ideal for industries like water treatment, chemical processing, and HVAC systems, where reliable flow control and space-saving solutions are important.
2. Extension Stem Butterfly Valve
For applications where valves need to be operated from a distance or in deep underground installations, the Extension Stem Butterfly Valve is the perfect choice. It comes with an extended stem that allows easy manual or automated operation, even in hard-to-reach places.
Key features:
- Customizable stem length
- Suitable for buried or elevated pipeline systems
- Compatible with manual, electric, or pneumatic actuators
- Available in various pressure ratings and sizes
This valve is commonly used in water distribution, fire protection systems, and industrial piping networks that require remote valve operation for safety and convenience.
3. PN16 Butterfly Valve
When working with higher-pressure systems, the PN16 Butterfly Valve offers the strength and reliability required. “PN16” indicates that the valve can handle a nominal pressure of 16 bar, making it suitable for medium to high-pressure pipelines.
Key features:
- Double eccentric design for reduced wear and tight sealing
- Worm gear operation for precise flow control
- High-performance sealing suitable for water, oil, and gas
- Durable ductile iron construction
This type of butterfly valve is widely used in industries like oil and gas, power generation, and large-scale water supply projects, where maintaining pressure integrity is critical.
Conclusion
Selecting the right butterfly valve depends on the application, pressure requirements, and installation environment.
- Choose a U Type Butterfly Valve for general-purpose use with reliable sealing and compact design.
- Opt for an Extension Stem Butterfly Valve when you need remote or underground operation.
- Use a PN16 Butterfly Valve for medium to high-pressure applications that demand durability and precise control.
By understanding the unique strengths of each type, engineers and operators can ensure optimal performance and safety in their systems.