Double Flange Type Butterfly Valve

Description

Double Flange Type Butterfly Valve – Heavy Duty Industrial Flow Control Solution

Krishna Industries – Supplier, Wholesaler, Exporter, Distributor and Trader from Ahmedabad, Gujarat, India

Minimum Order Quantity (MOQ): 10 Pieces

Payment Terms : 100% Advance

Introduction to Double Flange Type Butterfly Valve

The Double Flange Type Butterfly Valve is a robust, high-performance industrial valve engineered for precise flow regulation and isolation in medium to large diameter pipelines. Designed for durability, structural integrity, and long service life, this valve is widely used in water treatment plants, fire protection systems, HVAC installations, chemical processing industries, power plants, and general industrial piping networks.

Unlike wafer or lug types, the double flanged construction provides superior mechanical strength and alignment accuracy. This makes it ideal for high-pressure and large-diameter installations where pipeline stability and sealing integrity are critical. The valve body is equipped with flanges on both ends, drilled according to international standards such as ANSI, DIN, BS, or IS specifications.

The Double Flanged Butterfly Valve is commonly compared with other flow control products such as
Wafer Type Butterfly Valve,
Lug Type Butterfly Valve,
Resilient Seated Butterfly Valve, and
Cast Iron Butterfly Valve.
However, for heavy-duty and long pipeline applications, the double flange type offers enhanced reliability and structural stability.

At Krishna Industries, we specialize in supplying high-quality Double Flange Type Butterfly Valves that meet stringent industrial requirements. As a trusted Supplier, Wholesaler, Exporter, Distributor and Trader from Ahmedabad, Gujarat, India, we cater to Indian and international markets with precision-engineered valves suitable for critical operations.

What is a Double Flange Type Butterfly Valve?

A Double Flange Type Butterfly Valve is a quarter-turn rotational motion valve used to regulate or isolate flow. It consists of a circular disc mounted on a rotating shaft. When the valve is fully closed, the disc blocks the pipeline. When rotated 90 degrees, the disc allows full flow.

The defining feature of this valve is the flanged connection at both ends. These flanges are bolted directly to pipeline flanges, ensuring rigid alignment and leak-proof installation.

Basic Components

• Valve Body (Cast Iron / Ductile Iron / Carbon Steel / SS)
• Disc (CI / DI / SS 304 / SS 316)
• Stem/Shaft (SS 410 / SS 304 / SS 316)
• Seat (EPDM / NBR / PTFE / Viton)
• Gear Operator / Lever / Actuator

Key Features of Double Flange Type Butterfly Valve

1. Heavy-Duty Construction

Double flanged design provides superior structural strength compared to wafer or lug type valves.

2. Leak-Proof Sealing

Resilient seating ensures bubble-tight shutoff performance.

3. Suitable for Large Diameter Lines

Ideal for DN 50 mm up to DN 1200 mm and above.

4. High Pressure Handling

Available in PN10, PN16, PN25 and ANSI 150 / 300 ratings.

5. Low Maintenance

Minimal moving parts reduce maintenance costs.

6. Corrosion Resistance

Available with epoxy coating and stainless steel components.

Technical Specifications

Body Material

• Cast Iron (CI)
• Ductile Iron (DI)
• Carbon Steel (WCB)
• Stainless Steel (SS304 / SS316)

Seat Material

• EPDM
• NBR
• PTFE
• Viton

Pressure Rating

• PN10
• PN16
• ANSI 150
• ANSI 300

End Connection

• Double Flanged
• ANSI B16.5
• DIN
• BS
• IS Standard

Operation Type

• Manual Gear Operated
• Lever Operated
• Electric Actuated
• Pneumatic Actuated

Applications of Double Flange Type Butterfly Valve

Water Treatment Plants

Used for controlling potable and wastewater flow.

Fire Fighting Systems

Installed in hydrant and sprinkler pipelines.

HVAC Systems

Regulates chilled and hot water circulation.

Chemical Industry

Suitable for non-corrosive and mildly corrosive fluids.

Power Plants

Used in cooling water and utility systems.

Advantages Over Other Valve Types

Compared to Gate Valve

Lighter weight, lower cost, faster operation.

Compared to Wafer Type Butterfly Valve

More rigid installation and better suited for high-pressure systems.

Compared to Lug Type Butterfly Valve

Better alignment in large bore pipeline systems.

Why Choose Krishna Industries?

Trusted Industrial Valve Supplier

Krishna Industries has built a reputation for delivering reliable industrial valves across India and international markets.

Comprehensive Supply Capability

We operate as Supplier, Wholesaler, Exporter, Distributor and Trader ensuring bulk availability and competitive pricing.

Quality Assurance

Each valve undergoes hydrostatic and performance testing before dispatch.

Timely Delivery

Strong logistics network ensures timely domestic and export shipments.

Industrial Hub Advantage

Located in Ahmedabad, Gujarat – a major industrial manufacturing hub in India.

Ordering Information

Minimum Order Quantity

10 Pieces

Payment Terms (Indian Buyers)

100% Advance Against Purchase Order

Delivery Timeline

Standard sizes: 7–10 working days (subject to stock availability).

10 Frequently Asked Questions (FAQ)

1. What is a Double Flange Type Butterfly Valve used for?

It is used for flow control and isolation in industrial pipeline systems.

2. What sizes are available?

Typically from 50 mm to 1200 mm and above.

3. What pressure ratings are supported?

PN10, PN16, ANSI 150 and ANSI 300.

4. Can it be used for water applications?

Yes, widely used in water and wastewater treatment plants.

5. What materials are available?

CI, DI, WCB, SS304, SS316.

6. Is it suitable for high-temperature applications?

Yes, depending on seat and body material selection.

7. What is the advantage of double flange over wafer type?

Better alignment and structural strength in large pipelines.

8. Is actuator mounting possible?

Yes, electric and pneumatic actuators can be mounted.

9. What is the warranty period?

Standard warranty provided against manufacturing defects.

10. Do you supply for export?

Yes, Krishna Industries exports to multiple international markets.

Conclusion

The Double Flange Type Butterfly Valve is a dependable, cost-effective and high-performance solution for industrial flow control. Its rigid double flanged construction ensures stability, safety, and leak-proof operation in critical applications.

If you are looking for a reliable Double Flanged Butterfly Valve Supplier in Ahmedabad or a trusted Butterfly Valve Exporter from India, Krishna Industries is your dependable partner.

Contact Krishna Industries Today for Bulk Orders and Industrial Supply Requirements.