خبر

Introduction

Resilient seated butterfly valves are widely used in industries that require efficient and reliable control of fluid flow. These valves provide excellent sealing performance and are known for their versatility and ease of operation. In this comprehensive guide, we will explore resilient seated butterfly valves, including their definitions, types, working principles, and key features. This information will help you better understand these valves and their applications.

What is a Resilient Seated Butterfly Valve?

Resilient seated butterfly valves are valves that use a rubber or elastomeric seat to create a tight seal between the disc and the valve body. The resilient seat ensures a reliable shut-off and allows for bi-directional flow control. There are several types of resilient seated butterfly valves, including:

Wafer Type:

Wafer-type resilient seated butterfly valves are designed to fit between flanges, making them compact and easy to install. They are commonly used in applications where space is limited.

Lug Type: 

Lug-type resilient seated butterfly valves contain threaded insertions or lugs on the valve body, permitting them to be bolted between the two flanges. These valves are ideal for applications that require frequent removal or maintenance.

How Does a Resilient Seated Butterfly Valve Work?

Resilient seated butterfly valves operate based on the principle of a disc or a butterfly-shaped plate rotating within the valve body to control fluid flow. When the valve is open, the disc is positioned parallel to the outpour direction, permitting maximum discharge. When the valve is shut, the disc revolves perpendicular to the flow path, forming a compressed seal against the resilient seat to prevent the discharge.

Key Features and Benefits of Resilient Seated Butterfly Valves

Resilient seated butterfly valves offer several features that make them advantageous in fluid control applications. Some key features include:

• Excellent Sealing Performance

The resilient seat provides a tight seal between the disc and the valve body, minimizing leakage and ensuring reliable sealing performance.

• Bi-Directional Flow Control

Resilient seated butterfly valves are capable of handling bi-directional flow, allowing for flow control in both directions.

• Easy Operation

These valves have a simple and lightweight design, making them easy to operate and maintain. They need less manual force compared to different valve styles.

• Cost-Effective Solution 

Resilient seated butterfly valves are cost-effective options for various applications because of their lower cost of manufacturing and maintenance.

Applications of Resilient Seated Butterfly Valves

Resilient seated butterfly valves find applications in industries such as water treatment, HVAC, chemical processing, and more. They are commonly used in systems that require on/off control or throttling of flow in water, air, gases, and other compatible fluids.

Difference Between Resilient Seated Butterfly Valve and Metal Seated Butterfly Valve

Resilient seated butterfly valves feature seats made of flexible materials like rubber for excellent sealing in moderate conditions, making them ideal for applications requiring reliable shut-off.

On the other hand, metal seated butterfly valves employ robust metal seats, providing durability and suitability for high-temperature, abrasive, or corrosive environments. The choice between them hinges on specific application requirements, with resilient seated valves favored for versatility and cost-effectiveness, and metal seated valves preferred for more demanding industrial settings.

Conclusion

Resilient seated butterfly valves offer reliable and cost-effective fluid control solutions in a wide range of industrial applications.