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.
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.