Reliable | Efficient | Engineered for Performance
Large Diameter Butterfly Valves Manufacturer & Supplier
Let’s first look at what a butterfly valve is? A butterfly valve is a quarter-turn rotational motion valve used to stop, regulate, or start fluid flow. It consists of a circular disc mounted on a rotating shaft. When fully closed, the disc blocks the passage of fluid; when open, it allows flow with minimal resistance. This simple, compact design makes butterfly valves ideal for applications requiring fast operation, space efficiency, and low-pressure drop.
When reliability, durability, and performance matter — TOT Valve delivers. As a leading manufacturer and supplier of large diameter industrial butterfly valves, we help you streamline fluid control across demanding applications with confidence.
Whether you’re operating in water & wastewater treatment, power generation, or chemical processing, our expertly engineered butterfly valves offer efficient shut-off, throttling, and long-term reliability — without compromise.
Be careful when choosing a new valve supplier, the disappointment of poor quality can last much longer than the joy of a low price!
Advantage of Large Diameter Butterfly Valves
At TOT Valve, we specialize in manufacturing industrial-grade large diameter butterfly valves tailored for high-volume and critical applications. Our valves are engineered to deliver tight shut-off, minimal pressure drop, and long-term reliability—even in corrosive, high-temperature, or high-pressure environments.
Fast Quarter-Turn Operation
Open or close flow instantly with a simple 90° turn—perfect for quick shut-off and emergency control.
Compact and Lightweight
Our butterfly valves are easier to install and maintain compared to bulky alternatives, which is a significant advantage for DN>700 pipelines.
Excellent Sealing Performance
Our advanced sealing designs provide a bubble-tight seal, ensuring a reliable shut-off and preventing leakage in your system.
Versatile Applications
Our butterfly valves are suitable for water, wastewater, gas, oil, and chemical processing, offering flexible solutions for diverse industries.
Certifications
Our butterfly valves meet:
- API 6D
- ISO 9001
- CE/PED
OEM & Customization Support
Need a special trim, actuator, or flange dimension for your DN>700 pipeline? Our engineers are ready to co-develop solutions that fit your application and installation constraints.
Explore Our Large Diameter Butterfly Valve Types
We offer a full line of large diameter butterfly valves to match your system specifications and project requirements.
By Body Type
Wafer Butterfly Valve
Cost-effective and compact; ideal for tight spaces. Sandwiched between flanges.
Lug Butterfly Valve
Allows dead-end service and easy disassembly from either side.
Flanged Butterfly Valve
High-strength connection, perfect for high-pressure environments.
By Disc Closure Design
Concentric Butterfly Valve
Centered disc for low-pressure, general-purpose use.
Double Offset (Eccentric) Butterfly Valve
Reduces seat wear, extending service life.
Triple Offset Butterfly Valve
Metal-to-metal sealing, bubble-tight shut-off for high-pressure, high-temperature applications.
By Actuation Method
Manual Butterfly Valve
Electric Butterfly Valve
Pneumatic Butterfly Valve
Hydraulic Butterfly Valve
Large Diameter Butterfly Valve Key Components & Materials
Body and Disc
- Cast Iron / Ductile Iron: High strength and affordability;
- Stainless Steel: For corrosive or sanitary environments.
Seat
- EPDM / NBR: Suitable for water, air, and non-aggressive media.
- PTFE: Chemically resistant for aggressive fluids.
- Metal Seats: For fire-safe, high-temperature applications.
- Ceramics： High corrosion resistance and wear resistance, especially suitable for liquids containing solid particles and slurries.
TOT Valves can provide a variety of material options according to your media and process conditions.
Ceramic vs. Metal Butterfly Valves: Which One Fits Your Application?
When it comes to harsh service conditions, the wear resistance, corrosion resistance, and service life of valves become critical. Both ceramic and metal butterfly valves have their strengths. Here’s a direct comparison to help you choose the best fit:
| Feature | Ceramic Butterfly Valve | Metal Butterfly Valve |
| Corrosion Resistance | Excellent — ideal for acids, alkalis, salts, and oxidizing media | Varies by metal type (e.g., stainless steel, alloy steel) |
| Wear Resistance | Superior — ideal for slurries, abrasive particles, and erosion-prone flows | Moderate — sealing surfaces may wear faster under abrasive conditions |
| Service Life | Long-lasting with minimal maintenance | Shorter life span, frequent maintenance needed |
| Temperature Tolerance | Depends on ceramic type; may limit at very high temps (>400°C) | Excellent — many metals withstand 800°C or more |
| Structural Strength | Brittle but strong — requires advanced composite engineering | Ductile and pressure-resistant |
| Cost Comparison | Higher upfront cost, but lower lifecycle cost | Lower initial cost, higher maintenance cost over time |
| Common Applications | Flue gas desulfurization, chemical processing, corrosive or slurry media | General water, HVAC, oil & gas, steam, food processing |
How to Choose the Right Large Diameter Butterfly Valve for Your System
When you are choosing what kind of butterfly valve to use in your system, you can contact us now. Our professional staff will help you make a wise decision based on the situation of your conveying system. Here we have summarized the common butterfly valve selection factors for your reference and hope to be helpful to you.
Fluid Type: Use stainless steel for corrosive media; ductile iron for clean water; ceramic for highly abrasive or acidic slurries.
Operation Mode: Manual for simple control; actuators for automation and remote control.
Pressure & Temperature: Choose double or triple offset designs for higher system demands.
Connection Type: Wafer for budget installs; lug for isolation; flanged for heavy-duty use.
Seat Material: EPDM for water; metal for high-temp; ceramic for abrasive and corrosive media.
