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.
Nominal diameter | DN40-DN1200 | DN40-DN1200 | DN40-DN300 | |
Nominal pressure | 1.0 | 1.6 | 2.5 | |
Test pressure | Seal | 1.1 | 1.76 | 2.75 |
Shell | 1.5 | 2.4 | 3.75 | |
| Applicable temperature | -10℃~100℃ | |||
| Applicable medium | Water, sewage, air, steam, food, medicine, various, oils, acids, alkalis, salts,etc. | |||
Part name | Material |
| Body | Ductile iron, cast iron, cast steel, stainless steel |
| Plate | Ductile iron(surface treatment: nickel plating, spray N11, fully lined with EPDM, fully lined with PTFE), CF8, CF8M, copper alloy, Monel, duplex steel, etc |
| Stem | SS410、SS416、SS431、SS304、20Cr13 |
| Seat | EPDM, NBR, natural rubber, Viton, silicone, PTFE, etc. |
| O-Ring | EPDM, NBR |
| Bushing | PTFE, bronze |




Product Advantages
Design Excellence for Compact and Secure Installation
The lug-style design enables compact, space-conscious installation, allowing this butterfly valve to fit tightly spaced piping systems effectively.
The split butterfly valve structure facilitates easy maintenance and replacement of internal components without removing the valve body from t
he pipeline. Additionally, the worm-gear actuator supports precise 90-degree valve operation at reduced torque—enhancing ease of use and
reducing mechanical wear. These design choices contribute to a modular, adaptable valve system favored by butterfly valve suppliers worldwide.
Enhanced User Experience and Operational Efficiency
Users benefit from low operating torque, which means less physical effort is needed to operate the valve, making it user-friendly for on-site
handling and frequent actuation. The bi-directional tightness and bubble-tight sealing provide reliable shutoff and minimize leakage risks.
Its durability across a broad range of materials and media ensures long service life and reduced downtime. The valve’s compatibility with
various flange standards simplifies integration into diverse pipeline systems, delivering strong overall value to maintenance teams and system
operators alike.
Use Scenarios
Water Treatment and Sewage Management Applications
In municipal and industrial water treatment plants, this lug-type butterfly valve plays a critical role in isolation and flow control within complex
piping networks. Its bi-directional tightness ensures secure shutoff, preventing backflow and contamination risks. The worm-gear actuator
allows operators to precisely regulate flow, even in restricted spaces, complying with safety and environmental standards. Integrated into
automated systems, the valve’s low torque requirements reduce operator fatigue during repeated use, supporting efficient maintenance cycles
and operational reliability.
Chemical and Food Industry Pipeline Integration
Chemical processing and food manufacturing facilities require valves that can handle aggressive media and varying temperatures without leakage.
This split butterfly valve’s robust material options, including PTFE-lined plates and stainless steel stems, address these challenges effectively.
Its precise 90-degree operation via worm gear ensures reliable flow regulation and swift shutoff in critical procedures. The valve’s design simplifies
installation in tight spaces typical of process plants and meets hygiene and safety standards, making it a trustworthy component in sensitive industrial
workflows.
FAQ
What materials are used in the Lug Type ANSI Split Butterfly Valve With Worm Gear?
The Lug Type ANSI Split Butterfly Valve With Worm Gear features bodies made from ductile iron, cast iron, cast steel, or stainless steel. Plates include
nickel-plated ductile iron and stainless alloys. Seats and seals come in EPDM, NBR, Viton, PTFE, and others, ensuring compatibility with a range of
media and temperatures.
Can the valve be customized for specific piping system needs?
Yes, this Split Butterfly Valve offers multiple body and seat material options to fit various fluids and temperatures. It supports a wide nominal diameter
range (DN40–DN1200) with multiple flange standards, allowing tailored installation across different industrial and commercial applications.
How is the valve installed and maintained in compact spaces?
The lug-type design enables space-saving installation with flange connections on both sides, allowing isolation without removing the entire valve.
The worm-gear actuation ensures smooth 90-degree operation with low torque, simplifying manual or powered adjustments and easing maintenance
in confined areas.
What is the typical delivery time and shipping scope for this butterfly valve?
Delivery for the butterfly valve generally ranges from 15 to 30 days. TJL Industry Group ships worldwide, including Europe, America, Asia, the Middle East,
and Africa, ensuring timely access to quality valves designed for water, sewage, air, steam, and various industrial fluids.
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