Valves must provide excellent performance, dependability, and a long service life in today’s harsh industrial settings. The Double Offset Butterfly Valve is one of the most popular flow control options for high-temperature and high-pressure applications. MNC Valves, one of the top producers of double offset butterfly valves in Ahmedabad, India, provides sturdy, precisely constructed valves that satisfy international industry requirements.
What is a Double Offset Butterfly Valve?
An improved variant of a traditional butterfly valve is called a Double Offset Butterfly Valve, sometimes referred to as a High Performance Butterfly Valve. Two separate shaft offsets from the valve seat and pipeline centerline are referred to as “double offsets.” This special design ensures tight shut-off, reduced torque, and longer valve life by drastically reducing friction between the disc and seat during operation.
These valves are frequently utilised in situations where reliability, durability, and zero leakage under high pressure and temperature conditions are essential.
Design and Construction
The design of a double offset butterfly valve is engineered for efficiency and longevity:
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First Offset: The shaft is positioned behind the disc centerline, reducing seat wear.
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Second Offset: The shaft is offset from the pipe centerline, allowing the disc to disengage from the seat quickly during opening.
Key Components
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Body: Wafer, lug, or flanged type, designed for strength and pressure resistance
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Disc: Precisely machined for optimal sealing and flow control
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Seat: Soft or metal seat depending on application
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Stem/Shaft: High-strength material to withstand torque and stress
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Actuator: Manual, pneumatic, electric, or hydraulic options
This construction ensures excellent sealing performance even in harsh operating conditions.
Double Offset Mechanism Explained
When the disc opens, it may instantly rotate away from the seat thanks to the double offset mechanism. The double offset design reduces contact, in contrast to concentric valves where the disc grinds on the seat during operation. This leads to:
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Reduced friction
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Lower operating torque
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Minimal wear and tear
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Longer seat and valve life
This mechanism makes double offset butterfly valves ideal for frequent operation and demanding industrial processes.
Materials of Construction
At MNC Valves Ahmedabad, double offset butterfly valves are manufactured using high-quality materials to suit different media and operating conditions:
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Body & Disc: Cast Iron, Ductile Iron, Carbon Steel (WCB), Stainless Steel (SS304, SS316, SS316L)
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Seat: PTFE, RPTFE, EPDM, NBR, or Metal Seat
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Stem: Stainless Steel or Alloy Steel
Material selection is customized based on pressure, temperature, and fluid characteristics, ensuring maximum performance and safety.
Working Principle
A double offset butterfly valve operates on a straightforward yet effective basis. The disc rotates 90 degrees to regulate or halt the flow when the actuator moves the stem. Bubble-tight shut-off is achieved because of the double offset design, which only makes contact with the seat at the final shutting position. The disc swiftly lifts off the seat during opening, lowering torque requirements and friction.
Key Benefits of Double Offset Butterfly Valves
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Tight Shut-Off: Excellent sealing with minimal leakage
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Low Torque Operation: Reduced actuator size and energy consumption
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Longer Seat Life: Minimal friction and wear
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High Durability: Suitable for harsh industrial conditions
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High Pressure & Temperature Capability: Ideal for critical applications
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Compact & Lightweight: Easy installation and maintenance
These advantages make them a cost-effective and reliable solution for modern industries.
Industrial Applications of Double Offset Butterfly Valves
Double Offset Butterfly Valves are widely used in industries where reliable shut-off, high pressure handling, and long service life are essential.
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Water Supply & Wastewater Treatment: Used in pipelines, pumping stations, and treatment plants for leak-proof flow control and corrosion resistance.
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Oil & Gas Industry: Suitable for crude oil, gas, and refined products due to high pressure and temperature capability.
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Chemical & Petrochemical Plants: Ideal for corrosive chemicals and process fluids with excellent sealing performance.
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Power Plants: Applied in steam, cooling water, and fuel systems where durability and safety are critical.
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HVAC Systems: Used in chilled and hot water lines for efficient and automated flow control.
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Marine Industry: Installed in ballast water, seawater, and fuel systems due to compact design and corrosion resistance.
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Cement & Steel Industries: Reliable for high-temperature, dusty, and abrasive applications.
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Food & Beverage Industry: Used in water, steam, and utility lines with hygienic and easy-to-maintain designs.
Why Choose MNC Valves Ahmedabad?
MNC Valves is a trusted name among double offset butterfly valve manufacturers in India, known for quality, reliability, and customer satisfaction.
What Sets Us Apart
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Advanced manufacturing facilities in Ahmedabad
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Strict quality control and testing procedures
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Custom-built valve solutions as per industry requirements
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Competitive pricing with international quality standards
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Timely delivery and strong after-sales support
Our valves are designed to meet the needs of both domestic and international markets.
Contact MNC Valves – Strong CTA
Looking for reliable Double Offset Butterfly Valves in Ahmedabad, India?
MNC Valves is your trusted manufacturing partner.
Email: sales@mncvalves.com
Website: www.mncvalves.com
Location: Ahmedabad, Gujarat, India
Get in touch today for expert guidance, customized solutions, and competitive quotes. Choose MNC Valves for performance you can trust.