Double flanged butterfly valves are essential for controlling, isolating, and regulating the flow of liquids and gases in contemporary industrial flow control systems. India’s industries require valves that are robust, long-lasting, leak-proof, and able to withstand high temperatures and pressures. MNC VALVES, a top manufacturer of double-flanged butterfly valves in Ahmedabad, India, provides premium butterfly valves made in accordance with international standards to satisfy a range of industrial needs.
What is a Double Flanged Butterfly Valve?
A quarter-turn rotary valve used to regulate or isolate fluid flow in pipelines is called a double flanged butterfly valve. It is made up of a shaft-mounted circular disc that revolves inside the valve body. Because the valve includes flanges on both sides, it may be fastened straight between pipeline flanges, guaranteeing a sturdy installation and leak-proof sealing.
These valves are frequently utilised in large-diameter pipelines where cost effectiveness, quick operation, and space-saving design are crucial.
Design and Construction of Double Flanged Butterfly Valve
The robust design of a double flanged butterfly valve makes it suitable for heavy-duty industrial use.
Main Components:
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Valve Body – Double flanged body designed as per ANSI, DIN, BS, or IS standards
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Disc – Precision-machined disc for smooth flow control
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Stem/Shaft – Transmits torque from actuator or handle to disc
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Seat (Liner) – Provides tight shut-off and leak-proof sealing
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Bearings & Seals – Reduce friction and increase valve life
The double flange construction ensures proper alignment, reduced vibration, and better stability in high-pressure applications.
Materials of Construction
MNC VALVES manufactures double flanged butterfly valves using premium-grade materials depending on service conditions:
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Body Materials:
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Cast Iron
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Ductile Iron
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Carbon Steel
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Stainless Steel
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Disc Materials:
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Ductile Iron with EPDM / Nylon Coating
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Stainless Steel (SS304, SS316)
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Bronze / Aluminum Bronze
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Seat Materials:
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EPDM
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NBR
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PTFE
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Viton
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These material options make the valves suitable for corrosive, abrasive, high-temperature, and high-pressure applications.
Working Principle of Double Flanged Butterfly Valve
The working principle is simple and efficient:
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When the disc is parallel to the flow, the valve is fully open
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When the disc is perpendicular to the flow, the valve is fully closed
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The valve operates with a 90-degree rotation
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Can be operated manually (lever or gearbox) or automatically (electric or pneumatic actuator)
This quick operation makes butterfly valves ideal for on-off as well as throttling services.
Advantages of Double Flanged Butterfly Valves
Double flanged butterfly valves are widely preferred in industrial pipeline systems due to their strong construction, reliable sealing, and efficient flow control. Their design makes them suitable for heavy-duty and high-pressure applications across multiple industries. Below are the key advantages explained in detail:
1. Strong and Rigid Installation
Double flanged butterfly valves are bolted directly between two pipeline flanges, which provides excellent mechanical strength and stability. This rigid mounting reduces pipeline vibration, misalignment, and movement, making the valve highly reliable for large-diameter and high-pressure systems.
2. Excellent Leak-Proof Sealing
These valves are designed with high-quality elastomer or PTFE seats that ensure tight shut-off. The double flange design allows uniform gasket compression, resulting in minimal leakage even under high pressure and fluctuating temperature conditions. This makes them ideal for critical applications where zero leakage is required.
3. High Pressure and Temperature Handling
Compared to wafer-type butterfly valves, double flanged butterfly valves can handle higher pressure ratings and wider temperature ranges. Their robust body design and stronger bolting arrangement allow them to perform efficiently in demanding industrial environments such as power plants, oil & gas, and chemical processing units.
4. Long Service Life
The use of corrosion-resistant materials, precision-machined components, and low-friction bearings significantly reduces wear and tear. This leads to longer operational life with consistent performance over time, even in continuous or frequent operation conditions.
5. Low Maintenance Requirement
Double flanged butterfly valves have a simple internal design with fewer moving parts. This reduces maintenance frequency and downtime. Seat replacement and servicing can be done easily, lowering overall operating and maintenance costs.
6. Fast and Easy Operation
These valves operate on a quarter-turn (90-degree) mechanism, allowing quick opening and closing. They can be operated manually using a lever or gearbox, or automatically using pneumatic or electric actuators, making them suitable for automation and remote operation.
7. Compact and Space-Saving Design
Despite their heavy-duty performance, double flanged butterfly valves are compact and lightweight compared to gate or globe valves of the same size. This reduces space requirements and makes installation easier, especially in large pipeline systems.
8. Cost-Effective for Large Diameter Pipelines
For large-size pipelines, double flanged butterfly valves are more economical than other valve types. They require less material, lower installation time, and reduced support structures, resulting in overall cost savings.
9. Minimal Pressure Drop
The streamlined disc design allows smooth flow of fluid with minimal obstruction. When fully open, the pressure loss across the valve is low, improving system efficiency and reducing energy consumption.
10. Wide Range of Applications
Double flanged butterfly valves can handle water, air, steam, chemicals, oils, gases, and slurries. With different material and seat options, they can be customized for corrosive, abrasive, or high-temperature services across multiple industries.
Industry-Wise Applications of Double Flanged Butterfly Valves
1. Water & Wastewater Treatment
Used in water supply lines, filtration systems, pumping stations, and sewage treatment plants for flow regulation and isolation.
2. Power Plants
Applied in cooling water systems, boiler feed water, and auxiliary pipelines due to high pressure and temperature resistance.
3. Oil & Gas Industry
Suitable for refineries, storage terminals, and pipeline networks where reliable shut-off and safety are critical.
4. Chemical & Petrochemical Industry
Ideal for handling corrosive chemicals, acids, and solvents with proper material selection.
5. Cement Industry
Used in dust handling systems, cooling water lines, and slurry pipelines.
6. Steel & Metal Industry
Applied in high-temperature cooling systems, gas lines, and process pipelines.
7. HVAC Systems
Commonly used in chilled water, hot water, and air handling units in commercial and industrial buildings.
8. Pulp & Paper Industry
Handles fibrous fluids, water, and chemical mixtures with consistent performance.
9. Fertilizer Industry
Used for ammonia, urea, and other chemical processing pipelines.
10. Other Heavy Industries
Including mining, marine, textile, sugar, and pharmaceutical industries.
Why Choose MNC VALVES – Ahmedabad, India
MNC VALVES is a trusted name among double flanged butterfly valve manufacturers in India, known for quality, reliability, and customer satisfaction.
Key Reasons to Choose MNC VALVES:
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ISO-compliant manufacturing standards
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Advanced machining and testing facilities
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Wide size range and pressure classes
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Customized valve solutions
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Competitive pricing
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Timely delivery across India
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Strong after-sales support
With years of industry experience, MNC VALVES Ahmedabad supplies valves that meet both Indian and international market demands.
Conclusion
Because of their strength, effectiveness, and adaptability, double flanged butterfly valves are a crucial part of contemporary industrial pipe systems. These valves offer dependable flow control with a long service life in a variety of industries, including heavy, chemical, oil and gas, power, and water treatment facilities. MNC VALVES, a top manufacturer of double-flanged butterfly valves in Ahmedabad, India, provides high-performance valves made to tackle the most difficult industrial problems. Selecting MNC VALVES entails selecting dependable engineering excellence, quality, and longevity.
Contact Information – MNC VALVES
MNC VALVES
Ahmedabad, Gujarat, India
Email: sales@mncvalves.com
Website: www.mncvalves.com
For bulk orders, technical consultation, or customized valve solutions, contact MNC VALVES today.
