Decoding The Distinction: Double Flanged Butterfly Valve VS. Lug Type Butterfly Valves

Decoding The Distinction: Double Flanged Butterfly Valve VS. Lug Type Butterfly Valves

TWT, a renowned butterfly valves factory based in China, is recognized for its expertise in manufacturing high-quality butterfly valves. In this article, we will delve into the world of butterfly valves, focusing specifically on the double flanged butterfly valve and lug type butterfly valve. As a leading provider of butterfly valves, TWT ensures precision engineering, durability, and reliable performance in their products. Join us as we explore the features and differences between the double flanged butterfly valve and the lug type butterfly valve, shedding light on their unique characteristics and applications.

double flange butterfly valve

Understanding Double Flanged Butterfly Valves

 

A double flange butterfly valve is a versatile valve designed for regulating or isolating the flow of fluids in a piping system. It consists of a disc or plate that rotates on a central axis to control the flow, offering a tight shut-off when closed. Here are some key features and advantages of TWT’s double flanged butterfly valve:

Robust Construction: TWT’s double flanged butterfly valve is constructed using high-quality materials, ensuring durability and long-lasting performance. The valve is designed to withstand high pressure and temperature conditions, making it suitable for a variety of applications.

Double Flange Design: The double flanged design of the valve allows for easy installation between flanges in the pipeline. The flanges provide a secure and leak-free connection, ensuring the integrity of the system.

Bi-Directional Flow: Double flanged butterfly valves are designed to allow flow in both directions, making them suitable for applications where the flow direction may vary.

Efficient Flow Control: The streamlined disc design of the double flanged butterfly valve ensures minimal flow restriction and pressure drop, resulting in efficient flow control and reduced energy consumption.

 

Understanding Lug Type Butterfly Valves

 

A lug type butterfly valve, like the double flanged butterfly valve, is used for regulating or isolating fluid flow. It features threaded inserts or lugs on each side of the valve body, allowing for easy installation and removal from the pipeline. Here are some key features and advantages of TWT’s lug type butterfly valve:

Versatile Installation: Lug type butterfly valves are designed for easy installation and removal in a pipeline. The valve can be installed using bolts and nuts on each lug, making it suitable for applications where frequent maintenance or replacement is required.

Bi-Directional Flow: Similar to the double flanged butterfly valve, the lug type butterfly valve allows flow in both directions, offering versatility in fluid control applications.

Secure Sealing: The lugs on the valve body provide secure sealing between the valve and the pipeline, ensuring leak-free operation and system integrity.

Cost-Effective Solution: Lug type butterfly valves are often more cost-effective compared to double flanged butterfly valves, making them a preferred choice for applications where budget constraints are a consideration.

Here Are Some Common Sizes For Flanged Butterfly Valves:

Wafer Butterfly Valve Dimensions:

  • DN50 (2 inches): 120 mm (4.72 inches) x 120 mm (4.72 inches)
  • DN65 (2.5 inches): 150 mm (5.9 inches) x 150 mm (5.9 inches)
  • DN80 (3 inches): 180 mm (7.09 inches) x 180 mm (7.09 inches)
  • DN100 (4 inches): 220 mm (8.66 inches) x 220 mm (8.66 inches)
  • DN125 (5 inches): 280 mm (11.02 inches) x 280 mm (11.02 inches)
  • DN150 (6 inches): 330 mm (12.99 inches) x 330 mm (12.99 inches)
  • DN200 (8 inches): 400 mm (15.75 inches) x 400 mm (15.75 inches)

Lugged Butterfly Valve Dimensions:

  • DN50 (2 inches): 140 mm (5.51 inches) x 140 mm (5.51 inches)
  • DN65 (2.5 inches): 170 mm (6.69 inches) x 170 mm (6.69 inches)
  • DN80 (3 inches): 200 mm (7.87 inches) x 200 mm (7.87 inches)
  • DN100 (4 inches): 240 mm (9.45 inches) x 240 mm (9.45 inches)
  • DN125 (5 inches): 300 mm (11.81 inches) x 300 mm (11.81 inches)
  • DN150 (6 inches): 360 mm (14.17 inches) x 360 mm (14.17 inches)
  • DN200 (8 inches): 420 mm (16.54 inches) x 420 mm (16.54 inches)

Flanged Butterfly Valve Dimensions (ANSI):

  • 2 inches: 6.38 inches x 6.38 inches
  • 2.5 inches: 7.5 inches x 7.5 inches
  • 3 inches: 8.5 inches x 8.5 inches
  • 4 inches: 10.5 inches x 10.5 inches
  • 5 inches: 12.5 inches x 12.5 inches
  • 6 inches: 14.5 inches x 14.5 inches
  • 8 inches: 17.5 inches x 17.5 inches

Flanged Butterfly Valve Dimensions (DIN):

  • DN50 (2 inches): 130 mm (5.12 inches) x 130 mm (5.12 inches)
  • DN65 (2.5 inches): 160 mm (6.3 inches) x 160 mm (6.3 inches)
  • DN80 (3 inches): 190 mm (7.48 inches) x 190 mm (7.48 inches)
  • DN100 (4 inches): 230 mm (9.06 inches) x 230 mm (9.06 inches)
  • DN125 (5 inches): 280 mm (11.02 inches) x 280 mm (11.02 inches)
  • DN150 (6 inches): 330 mm (12.99 inches) x 330 mm (12.99 inches)
  • DN200 (8 inches): 400 mm (15.75 inches) x 400 mm (15.75 inches)

Double Flanged Butterfly Valve vs. Lug Type Butterfly Valve

 

While both double flanged butterfly valves and lug type butterfly valves serve similar purposes, they differ in their design and installation methods. Here are the key distinctions between the two:

Installation: Double flanged butterfly valves are installed between flanges in the pipeline, using bolts and nuts to secure the valve. On the other hand, lug type butterfly valves have lugs or threaded inserts on each side of the valve body, allowing for easy installation and removal using bolts and nuts.

Maintenance: Lug type butterfly valves offer the advantage of easy removal for maintenance or replacement, thanks to their lug design. Double flanged butterfly valves, while still serviceable, require the removal of the valve from the pipeline between the flanges.

Cost: Lug type butterfly valves are often more cost-effective compared to double flanged butterfly valves, making them a preferred choice for applications where budget constraints are a consideration.

TWT, a well-known China butterfly valves factory, specializes in manufacturing high-quality butterfly valves, including double flanged butterfly valves and lug type butterfly valves. Understanding the distinct features and differences between these valve types helps in selecting the most suitable option for specific application requirements. Contact TWT today to explore their range of butterfly valves and experience the performance and reliability they bring to your systems. Additionally, our sale representatives will provide information to you such as double flanged butterfly valve dimensions.

Decoding The Distinction: Double Flanged Butterfly Valve VS. Lug Type Butterfly Valves

Exploring the Different Types of Butterfly Valves: A Practical Comparison

In the dynamic world of industrial valves, butterfly valves emerge as the versatile maestros of fluid control. Amidst this symphony of options, three star performers take the stage: the Double Flange Butterfly Valve, the HP Butterfly Valve, and the Lug Type Butterfly Valve. Each valve dances to its own rhythm, offering a bespoke blend of features and advantages crafted to meet distinct needs. Let’s embark on a journey to unravel their unique melodies.

Double Flange Butterfly Valve

Double Flange Butterfly Valve

Imagine a valve with flanges on both ends – that’s the Double Flange Butterfly Valve. These flanges make it a breeze to install between existing flanges in pipeline systems. Not only does this design boost stability, but it also ensures a snug fit, preventing any pesky leaks or unexpected movements during operation.

Key Points:

  • Simple installation thanks to flanges on both ends.
  • Uses resilient seating materials like EPDM, NBR, or Viton for effective sealing.
  • Often seen in applications that demand tight shut-off and minimal pressure drop.

Common Applications:

  • Water treatment facilities
  • HVAC systems
  • Municipal water networks

High-Performance (HP) Butterfly Valve

hp butterfly valve

If you’re dealing with high pressures and temperatures, the HP Butterfly Valve is your go-to. Designed to handle tough industrial environments, this valve boasts a sturdy build and superior sealing capabilities, making it a reliable choice where performance is non-negotiable.

Key Points:

  • Built tough to withstand high pressure and temperature conditions.
  • Metal-seated design for extra durability and resistance to wear and tear.
  • Can seal in both directions, providing flexibility in flow control.

Common Applications:

  • Petrochemical plants
  • Oil and gas pipelines
  • Power generation plants

Lug Type Butterfly Valve

Lug Type Butterfly Valve

Ever needed to remove a valve without disrupting the entire pipeline? Enter the Lug Type Butterfly Valve. With its distinctive lugs or ears sticking out from the valve body, this type offers hassle-free installation and removal, perfect for situations requiring frequent maintenance or replacement.

Key Points:

  • Lugs make for easy installation and removal without disturbing the pipeline.
  • Available in both wafer and lug configurations for versatile installation options.
  • Suitable for applications that need bi-directional flow control.

Common Applications:

  • Chemical processing facilities
  • Pulp and paper mills
  • Water distribution systems

Comparing the Three

  • Though all three types of butterfly valves share the same goal of controlling fluid flow, they differ in design, construction, and ideal applications.
  • Installation: the Double Flange Butterfly Valve gracefully nestles between flanges, ensuring a snug fit that spells stability and security. Meanwhile, the Lug Type Valve takes a different approach, utilizing its lugs to effortlessly hook into place, offering a seamless removal process that keeps the pipeline undisturbed. It’s a choreographed dance of precision and convenience, each step orchestrated to perfection.
  • Pressure and Temperature Handling:the HP Butterfly Valve emerges as the undisputed champion, capable of braving the fiercest conditions with unwavering poise. Its robust construction and advanced design equip it to tackle extreme pressures and temperatures, rendering it the hero of the most challenging industrial battlegrounds. It’s a testament to resilience, a beacon of strength amidst the heat of adversity.
  • Sealing Mechanism: While all three types use resilient materials for sealing, the HP Butterfly Valve often incorporates metal seats for added durability in harsh conditions.
  • Application Specifics: Each valve type is tailored to specific needs based on factors like pressure, temperature, and maintenance requirements. For instance, the Double Flange Valve is commonly found in water distribution, while the HP Valve thrives in industries with tough operating conditions.

At its core, selecting the perfect butterfly valve becomes a journey of discovering the harmony between your unique requirements and the valve’s capabilities. Whether you seek the seamless embrace of effortless installation, the stalwart resilience against the tempest of extreme conditions, or the comforting embrace of simplified maintenance, rest assured, there exists a butterfly valve tailored precisely to your needs. It’s a symphony of compatibility, where every note resonates with the melody of your specific circumstances, ensuring a harmonious flow in every aspect of your operation.

1 Inch Butterfly Valve Lug Type: A Versatile Solution for Flow Control

1 Inch Butterfly Valve Lug Type: A Versatile Solution for Flow Control

1 inch butterfly valves with lug type design offer a versatile and reliable solution for flow control in various industrial and commercial applications. Their compact size, easy installation, and cost-effectiveness make them a preferred choice for regulating the flow of liquids and gases.

By understanding the features, advantages, and diverse applications of 1 inch butterfly valves with lug type design, engineers and professionals can select the most appropriate valve for their specific requirements, ensuring efficient flow control and system performance.

Understanding 1 Inch Butterfly Valves with Lug Type Design

1 inch butterfly valves by China valve supplier, are quarter-turn valves that utilize a circular disc (butterfly) to control the flow of media. The “lug type” refers to the method of connecting the valve to the piping system. Lug type butterfly valves have lugs or protrusions on the body that allow for easy installation between pipe flanges.

Features of 1 Inch Butterfly Valves with Lug Type Design

  • Compact Size: 1 inch butterfly valves are relatively small and lightweight, making them suitable for space-constrained applications.
  • Lug Type Connection: The lug type butterfly valve design simplifies installation by allowing the valve to be bolted between pipe flanges without the need for welding or special tools.
  • Quarter-Turn Operation: A simple 90-degree rotation of the valve handle or actuator opens or closes the valve, providing quick and efficient flow control.
  • Resilient Seat: The valve seat is typically made of a resilient material that ensures a tight seal against the disc, minimizing leakage.
  • Corrosion Resistance: 1 inch butterfly valves are often made of corrosion-resistant materials such as stainless steel or PVC, making them suitable for various media and environments.

Advantages of 1 Inch Butterfly Valves with Lug Type Design

  • Easy Installation: The lug type design simplifies installation, reducing labor costs and downtime.
  • Compact and Lightweight: Their small size and light weight make them ideal for applications where space is limited.
  • Versatile Applications: 1 inch butterfly valves with lug type design are suitable for a wide range of industrial and commercial applications.
  • Cost-Effective: They offer a cost-effective solution for flow control compared to other types of valves.
  • Reliable Performance: These valves are known for their reliability and durability, ensuring long-lasting performance.

Applications of 1 Inch Butterfly Valves with Lug Type Design

  • Water Systems: 1 inch butterfly valves are commonly used in water treatment plants, plumbing systems, and irrigation networks.
  • Chemical Processing: They are suitable for controlling the flow of chemicals and corrosive liquids in various industrial processes.
  • HVAC Systems: These valves are employed in heating, ventilation, and air conditioning systems to regulate the flow of hot or cold air.
  • Oil and Gas Industry: 1 inch butterfly valves are used in oil and gas pipelines, refineries, and petrochemical plants.
  • Pharmaceutical Industry: They are utilized in pharmaceutical manufacturing facilities to control the flow of sterile fluids and gases.
Butterfly Valves Are Constantly Being Updated And Developed Nowadays In China

Butterfly Valves Are Constantly Being Updated And Developed Nowadays In China

With the continuous development of industrial technology, valves as an important part of fluid control, its performance and safety has been greatly improved. Among them, lug type butterfly valve, as a new type of butterfly valve, has been widely used in many fields. In this article,TWT,China will introduce the structure, working principle, characteristics and application of lug type butterfly valve to help readers better understand and know this new type of valve.

Butterfly valve is a simple structure of the regulating valve, the main role is used to cut off the circulation of the medium in the pipeline, or to regulate the size of the medium flow in the pipeline. These are the two most important regulation needs of piping systems, so the China butterfly valve family has continued to develop and grow.

 

Structure and working principle of lug type butterfly valve

Lug type butterfly valve is a kind of valve composed of valve body, valve plate and lug. Its working principle is to use the lugs and the valve plate to achieve the opening and closing of the valve. When the lugs rotate, the valve plate will also rotate with it, thus changing the flow area of the valve opening to achieve the purpose of controlling the fluid flow.

 

Features of China Lug Type Butterfly Valve

1.High efficiency: the lug type butterfly valve has a fast opening and closing speed, which can quickly respond to changes in flow rate, thus improving productivity.

2.Energy saving: lug type butterfly valve has low flow resistance, which can reduce the pressure loss of fluid in the valve and reduce energy consumption.

  1. Reliability: Lug type butterfly valve has simple structure, long service life and high reliability.
  2. Safety: lug type butterfly valve has good sealing performance, which can effectively prevent fluid leakage and ensure production safety.
  3. Convenient maintenance: the lug butterfly valve has fewer parts, which makes it easier to maintain and reduces the maintenance cost.

Three Eccentric Metal Hard Seal Butterfly Valve 1

Application of Lug Type Butterfly Valve

Although lug butterfly valve is a new type of valve, due to its excellent performance, especially that China lug butterfly valve factory,like TWT,China has made a big breakthrough in lug butterfly valve manufacturer in China, now lug butterfly valve is widely used in many fields:

  1. Petrochemical industry: In the petrochemical industry, fluid control is very important. Lug type butterfly valves are widely used in petrochemical plants, such as reactors, compressors and other equipment because of their good sealing performance, corrosion resistance and other characteristics.
  2. water treatment industry: in the water treatment industry, lug type butterfly valve can withstand high water pressure, and has good corrosion resistance, is widely used in water treatment, sewage treatment and other links.
  3. Electric power industry: in the electric power industry, lug type butterfly valves are widely used in steam pipelines, water treatment systems and other equipment due to their high temperature and pressure resistance to ensure the safety and stability of power production.
  4. Food and Pharmaceutical Industry: In the food and pharmaceutical industry, lug type butterfly valves are widely used in dairy products, pharmaceutical and other production lines to ensure the quality and safety of the products due to its good hygiene performance, corrosion resistance and other characteristics.
  5. Other fields: In addition to the above industries, lug type butterfly valves are also widely used in construction, metallurgy, textile and other fields, providing reliable fluid control solutions for industrial production.

 

Another new type of butterfly valve

In addition to the lug type butterfly valve, the use of another high-performance new type of butterfly valve is becoming more widespread: the triple offset butterfly valve.

TWT,China will introduce triple offset butterfly valve in detail in other articles,and we look forward to buyers’ constant attention