Lug Type DN50 Butterfly Valve Hand Lever Signal

Lug Type Butterfly Valve Structure and Feature:

1. Bi-directional tightness.   

2. Small in size and light in weight. Easy installation and maintenance. It can be mounted wherever needed.

3. Simple and compact construction, quick 90 degree on-off operation.

4. Minimized operating torque, energy saving.

5. Flow curve tending to straight line. Excellent regulation performance.

6. Long service life. Standing the test of tens of thousands opening/closing operations.

7. Bubbles-tight sealing with no leakage under the pressure test.

8. Wide selection of materials, applicable for various medium.

Lug Type Butterfly Valve Main Performance  Spcification

Lug Type Butterfly Valve Main Part Materials

Product Advantages

Energy Efficiency and Low Torque Operation

One of the standout features of the Lug Type Butterfly Valve is its low operating torque. This reduces the amount of energy required to operate 

the valve, which is particularly beneficial in systems with frequent valve cycling. The low torque also contributes to less wear on internal 

components, enhancing the valve’s durability and reducing maintenance costs over time.

Reliable Sealing and Leak Prevention

The Lug Type Butterfly Valve is designed to provide bi-directional tightness and bubble-tight sealing even under pressure, ensuring no leakage 

during operation. This makes it a reliable choice for applications where leak prevention is critical. Its ability to maintain tight seals in harsh 

operating conditions, such as high pressures and challenging media, ensures that it performs reliably throughout its lifecycle.

Durability and Long Service Life

The valve’s robust construction and choice of high-quality materials, including ductile iron and stainless steel, ensure that it can withstand the 

stresses of industrial use. The valve is built to endure tens of thousands of opening and closing cycles without compromising performance, making

 it an excellent choice for applications requiring long-term, reliable service.

Product Advantages

Structural and Design Benefits

The Lug Type DN50 Butterfly Valve’s lug-style construction allows for straightforward installation and removal without disturbing adjacent piping, 

a key benefit for time-sensitive maintenance. Its neatly designed Butterfly Valve Hand Lever mechanism gives users an straightforward 90-degree turn 

operation that minimizes mechanical complexity. This design supports bi-directional bubble-tight sealing, ensuring dependable function under 

pressure, while its modular build accommodates a variety of seal and body material combinations suited to different media. These design 

choices reflect thoughtful engineering from a reliable butterfly valve supplier focused on practical usability and long-term resilience.

Performance and User-Friendly Operation

This valve excels in smooth, low-torque handling, meaning users can open or close it quickly and with minimal physical effort, reducing fatigue 

and operational delays. The hand lever signal adds visual confirmation of the valve’s position, enhancing usability for operators monitoring flow 

control. Its durable materials and seal options guarantee extended service life, even with frequent cycling in demanding conditions. For everyday 

or professional users, this butterfly valve blends convenience with consistent performance, making it an outstanding choice for anyone needing 

reliable manual flow regulation combined with straightforward maintenance.

Use Scenarios

Use in Water Treatment Facilities

In water treatment plants, where tight sealing and dependable shutoff are critical, the Lug Type DN50 Butterfly Valve excels by fulfilling precise manual 

isolation roles. Operators use this butterfly valve to control flows of clean and treated water safely, with its lug design easing installation in compact 

pipe networks. Its corrosion-resistant seat materials handle chemicals present in purification processes, ensuring compliance with cleanliness and 

safety standards. Integrated with system automation or manual workflows, the valve supports routine maintenance schedules, enabling inspections 

without full system shutdowns, enhancing plant efficiency and reducing downtime.

Role in Retrofit Pipeline Projects

When upgrading existing piping systems, the Lug Type DN50 Butterfly Valve stands out as a flexible solution due to its lug-style fastening and compact 

size. Contractors and facility managers rely on this Butterfly Valve Hand Lever for its quick manual operation, allowing incremental flow control during 

changeouts or modifications. It fits easily between flanges without needing extensive pipework changes, supports tight bi-directional sealing for 

safe pressure handling, and meets durability demands in industrial environments. This valve integrates seamlessly into retrofit workflows, 

simplifying installation and extending infrastructure life without costly overhauls.

About Us

TJL Industry Group Co., Ltd. is a professional butterfly valve manufacturer committed to providing high-quality valves for a wide range of industrial 

applications. With decades of expertise, we have established ourselves as a leading butterfly valve supplier, specializing in products such as high-

performance butterfly valves for water treatment, chemical processing, food and beverage, and more. Our dedication to quality and innovation allows 

us to meet the demanding needs of our global clientele, ensuring reliable, efficient, and cost-effective solutions. We aim to deliver tailored products and

 exceptional customer service to help clients achieve long-term operational success.

Contact us today to inquire about customized butterfly valve solutions that meet your specific requirements!

FAQ

What is the maximum pressure the valve can handle?

The Lug Type Butterfly Valve can handle pressures up to 2.5 MPa, depending on the material and size.

Can the valve be used with corrosive chemicals?

Yes, the valve is made with corrosion-resistant materials such as PTFE and EPDM, making it suitable for a wide range of chemicals, acids, and alkalis.

What are the temperature limits for the valve?

The valve is designed to operate efficiently in temperatures ranging from -10℃ to 100℃, suitable for most industrial environments.

How long is the valve expected to last?

The valve is built to withstand tens of thousands of opening and closing operations, offering long-term durability with minimal maintenance.

What industries use this type of valve?

Industries such as water treatment, chemical processing, and food and beverage rely on the Lug Type Butterfly Valve for precise flow control and reliable

 sealing.

Send your message to us

TJL INDUSTRY GROUP CO., LIMITED 

Tel: 0086-22-28219562
Fax: 0086-22-28219554 ext.8888

Mobile:15022393555

Email: sales@tjlindustry.com

Address: 1-711,XiangNian Plaza, Dongjiang and Neijiang Road Cross, Hexi District, Tianjin China