Double Eccentric Off Set Disc Double Flange Butterfly Valve

Description

PRODUCT NAME
Double Eccentric Off Set Disc Double Flange Butterfly Valve

SUPPLIER
Krishna Industries
Ahmedabad, Gujarat, India

MINIMUM ORDER QUANTITY
10 Nos

MARKET FOCUS
This product page is written exclusively for Indian buyers, including industrial users, EPC contractors, OEMs, government suppliers, water authorities, infrastructure companies, traders, and valve stockists across India. No export focus is included.

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INTRODUCTION

The Double Eccentric Off Set Disc Double Flange Butterfly Valve is a heavy-duty industrial isolation and flow control valve designed for high-pressure, high-temperature, and large-diameter pipeline applications commonly used across Indian industries. This valve is engineered with a double eccentric (double offset) disc design that significantly reduces seat wear, lowers operating torque, and ensures reliable sealing over a long service life.

In Indian industrial environments where pipelines handle water, raw water, treated water, seawater, effluent, cooling water, air, steam, oil, and various non-corrosive or mildly corrosive media, reliability and durability of valves are critical. The double eccentric butterfly valve has become a preferred choice over conventional concentric butterfly valves, gate valves, and globe valves due to its compact construction, lighter weight, reduced maintenance, and cost-effective lifecycle performance.

Krishna Industries supplies Double Eccentric Off Set Disc Double Flange Butterfly Valves manufactured with precision machining, robust materials, and strict quality control, suitable for Indian standards and site conditions. These valves are widely used as isolation valves in water transmission pipelines, pumping stations, treatment plants, power plants, HVAC systems, fire protection networks, and process industries.

Related and commonly associated industrial valve products include concentric butterfly valves, triple offset butterfly valves, resilient seated butterfly valves, metal seated butterfly valves, gate valves, check valves, and control valves. Among these, the double eccentric butterfly valve offers an optimal balance between sealing performance, operating torque, and cost, making it one of the most demanded valves in medium to large diameter piping systems across India.

With double flange ends, this valve is designed for secure installation between matching flanges, ensuring rigid alignment, minimal vibration, and long-term leak-free operation. Krishna Industries positions itself as a reliable supplier and sourcing partner for Indian buyers who require consistent quality, technical support, and dependable supply from Ahmedabad, Gujarat, one of India’s major industrial manufacturing hubs.

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WHAT IS A DOUBLE ECCENTRIC OFF SET DISC BUTTERFLY VALVE

A double eccentric butterfly valve, also known as a double offset butterfly valve, is designed with two offsets in the disc and shaft arrangement. The first offset places the shaft behind the disc centerline, and the second offset moves the shaft away from the pipeline centerline. This design allows the disc to lift off the seat immediately during opening, reducing friction between the disc and seat.

Compared to concentric butterfly valves, the double eccentric design dramatically improves sealing life and reduces operating torque. This makes the valve suitable for higher pressures, higher temperatures, and larger sizes commonly required in Indian infrastructure and industrial projects.

The double flange construction further enhances the valve’s mechanical strength and makes it suitable for fixed pipeline installations where stability and alignment are critical.

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KEY DESIGN FEATURES

Double Eccentric Disc Geometry
The disc and shaft offsets reduce seat contact during operation, minimizing wear and extending service life.

Double Flange End Connection
Provides strong and rigid installation between pipeline flanges, ideal for large diameter and high-pressure pipelines.

Low Operating Torque
Reduced friction allows easy operation using manual gearboxes or actuators, lowering energy and manpower requirements.

Tight Shut-Off Performance
Designed to provide reliable sealing in isolation applications, especially in water and utility services.

Robust Construction
Manufactured using high-quality cast iron, ductile iron, carbon steel, or stainless steel as per application needs.

Bidirectional Flow Capability
Suitable for flow in both directions, making installation flexible.

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TYPICAL MATERIAL OF CONSTRUCTION

Body
Cast Iron, Ductile Iron, Carbon Steel, or Stainless Steel depending on service conditions.

Disc
Ductile Iron with epoxy coating, Stainless Steel, or other alloy materials.

Seat
EPDM, NBR, PTFE, or metal seat depending on temperature and media.

Shaft
Stainless Steel or Carbon Steel with suitable surface treatment.

Fasteners
High tensile carbon steel or stainless steel.

Coating
Internal and external epoxy coating for corrosion resistance, suitable for Indian water and utility applications.

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AVAILABLE SIZE RANGE

Krishna Industries supplies Double Eccentric Off Set Disc Double Flange Butterfly Valves in a wide range of sizes suitable for Indian pipeline systems, typically starting from medium diameters and extending to very large sizes used in transmission lines, pumping stations, and treatment plants.

Pressure ratings and dimensions can be supplied as per commonly followed Indian standards and project requirements.

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APPLICATIONS IN INDIA

Water Supply Pipelines
Used extensively in municipal and industrial water distribution networks across cities and towns in India.

Water Treatment Plants
Suitable for raw water, filtered water, and treated water isolation duties.

Sewage and Effluent Treatment Plants
Handles non-aggressive sewage and effluent media with appropriate material selection.

Power Plants
Used in cooling water lines, auxiliary systems, and utility pipelines.

HVAC Systems
Applied in large chilled water and condenser water networks.

Fire Protection Systems
Installed in main headers and branch lines for isolation purposes.

Industrial Process Plants
Used in refineries, chemical plants, textile units, sugar mills, cement plants, and steel plants for utility services.

Irrigation Projects
Widely used in canal pipelines and pumping systems.

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ADVANTAGES FOR INDIAN BUYERS

Cost-Effective Alternative
Compared to gate valves and globe valves, butterfly valves offer lower initial cost and reduced installation expenses.

Compact and Lightweight
Easier handling and installation, especially in large sizes where space and manpower are constraints.

Low Maintenance
Reduced wear on seat and disc leads to longer maintenance intervals.

Reliable Indian Supply
Supplied by Krishna Industries from Ahmedabad, ensuring shorter lead times and better coordination.

Suitable for Indian Conditions
Designed to withstand Indian water quality, climate variations, and site conditions.

Bulk Availability
Ideal for contractors, traders, and stockists requiring multiple quantities for projects.

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INSTALLATION GUIDELINES

Ensure pipeline flanges are properly aligned before installation.
Clean pipeline interior to remove debris before valve installation.
Use appropriate gaskets suitable for pressure and media.
Tighten flange bolts evenly in a cross pattern.
Operate the valve fully open and close once after installation to confirm smooth movement.

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OPERATION AND MAINTENANCE

The valve can be operated using a manual worm gear gearbox or electric actuator depending on size and application. Periodic inspection is recommended to ensure smooth operation, proper sealing, and coating integrity. With correct installation and normal operating conditions, the valve offers long and trouble-free service.

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QUALITY AND SUPPLY COMMITMENT

Krishna Industries follows strict quality checks during procurement and supply. Valves are sourced from trusted manufacturers and inspected for dimensional accuracy, material quality, and functional performance before dispatch. Each valve supplied is suitable for use in Indian industrial and infrastructure projects.

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WHY CHOOSE KRISHNA INDUSTRIES

Based in Ahmedabad, Gujarat, Krishna Industries is strategically located in one of India’s strongest industrial corridors. The company serves buyers across Gujarat, Maharashtra, Rajasthan, Madhya Pradesh, Delhi NCR, South India, and other major industrial regions.

With strong product knowledge, competitive pricing, and consistent supply capability, Krishna Industries positions itself as a dependable supplier of Double Eccentric Off Set Disc Double Flange Butterfly Valves for Indian buyers who value quality and long-term performance.

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FREQUENTLY ASKED QUESTIONS

1. What is the minimum order quantity for this valve
The minimum order quantity is 10 numbers.

2. Is this valve suitable for Indian water supply projects
Yes, it is widely used in municipal and industrial water supply projects across India.

3. What is the main advantage of a double eccentric butterfly valve
It offers reduced seat wear, lower operating torque, and longer service life compared to concentric butterfly valves.

4. Can this valve replace gate valves in large pipelines
Yes, in many applications it is preferred due to compact size, lower cost, and easier operation.

5. Is this valve suitable for sewage and effluent applications
Yes, with proper material and seat selection, it is suitable for sewage and effluent services.

6. What type of end connection does this valve have
It comes with double flange end connections for rigid and secure installation.

7. Is this valve suitable for high pressure applications
It is suitable for medium to high pressure utility applications commonly used in India.

8. Can this valve be operated manually
Yes, it can be operated using a manual worm gear gearbox.

9. Does Krishna Industries supply this valve across India
Yes, Krishna Industries supplies to buyers across all major industrial regions in India.

10. Where is Krishna Industries located
Krishna Industries is located in Ahmedabad, Gujarat, India.

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CONCLUSION

The Double Eccentric Off Set Disc Double Flange Butterfly Valve is a proven and reliable solution for Indian industrial and infrastructure pipeline systems. Its robust construction, efficient sealing, and low operating torque make it an ideal choice for water, utility, and process applications. By sourcing this valve from Krishna Industries, Indian buyers gain access to dependable supply, technical clarity, and consistent quality from a trusted Ahmedabad-based supplier.