Double Flange Fabricated Damper Valve

Description

DOUBLE FLANGE FABRICATED DAMPER VALVE
Supplier: Krishna Industries – Ahmedabad, Gujarat, India

Minimum Order Quantity (MOQ): 5 Nos

INTRODUCTION

In heavy industrial systems where precise airflow control, isolation, and regulation are critical, the Double Flange Fabricated Damper Valve plays a vital role. Designed for robust performance in demanding environments, this valve is widely used in power plants, cement plants, steel plants, chemical industries, boiler systems, and large ducting applications across India. Unlike light-duty dampers, a fabricated damper valve is engineered from heavy MS plates and structural sections, ensuring long service life, dimensional stability, and dependable operation even under high temperature and dusty conditions.

Krishna Industries, based in Ahmedabad, Gujarat, is a trusted Indian supplier and manufacturer of Double Flange Fabricated Damper Valves, supplying to EPC contractors, OEMs, industrial plants, and maintenance teams throughout India. Our valves are designed with Indian operating conditions in mind, including fluctuating temperatures, high particulate loads, and continuous duty cycles.

A Double Flange Fabricated Damper Valve is typically installed between two flanged ducts or pipelines. The double flange design allows easy bolting, accurate alignment, and secure installation without leakage. These valves are commonly used alongside expansion joints, duct dampers, isolation dampers, butterfly dampers, and louver dampers in large industrial air and gas handling systems. When reliability, strength, and serviceability are priorities, fabricated damper valves are preferred over lightweight alternatives.

At Krishna Industries, every damper valve is fabricated using quality-tested raw materials, precision welding, and controlled fabrication processes. Our focus is on delivering Indian-standard, site-ready valves that reduce installation time and perform consistently in the field. Whether the requirement is for ON-OFF isolation or throttling control, our Double Flange Fabricated Damper Valves are engineered to meet project specifications and long-term operational expectations.

WHAT IS A DOUBLE FLANGE FABRICATED DAMPER VALVE

A Double Flange Fabricated Damper Valve is a heavy-duty flow control device used primarily in air, gas, and flue gas systems. It consists of a fabricated steel body with flanges on both ends, a damper blade or disc, a shaft assembly, bearings, and an operating mechanism such as a hand lever, gearbox, or actuator.

The term “fabricated” indicates that the valve body is not cast but manufactured by welding MS plates, angles, channels, and pipes. This allows flexibility in size, thickness, and design, making it ideal for large diameters and customized applications. The double flange construction ensures tight integration into ducting systems using standard flanged connections.

These valves are widely used in industries such as power generation, cement manufacturing, steel processing, sugar plants, refineries, fertilizer plants, and HVAC systems in large industrial buildings.

KEY PRODUCT-RELATED KEYWORDS USED IN INDUSTRY

Double flange damper valve
Fabricated damper valve
Industrial damper valve
MS fabricated damper
Flue gas damper valve
Heavy duty duct damper

PRODUCT CONSTRUCTION AND DESIGN

Body Construction
The valve body is fabricated from high-quality mild steel plates. Plate thickness is selected based on valve size, pressure, temperature, and duct conditions. All fabrication is done using approved welding procedures to ensure structural strength and leak-free joints.

Flanges
Both ends of the valve are provided with fabricated or plate flanges drilled as per customer requirement. Standard Indian flange drilling patterns are followed for easy site compatibility. The double flange design allows quick installation and removal during maintenance.

Damper Blade
The damper blade is fabricated from MS plate and reinforced with stiffeners to prevent deformation during operation. Blade design ensures uniform load distribution and stable positioning in open and closed conditions.

Shaft and Bearings
The shaft is manufactured from EN8 or equivalent carbon steel. It is accurately machined and supported on heavy-duty bearings or bushings to ensure smooth rotation and long life even in dusty environments.

Sealing Arrangement
Depending on application, the valve can be supplied with metal-to-metal sealing or with a soft seal arrangement. Sealing design is optimized to reduce leakage when the valve is in closed position.

Operation
Double Flange Fabricated Damper Valves can be operated manually using a hand lever for smaller sizes or with a worm gearbox for larger sizes. For automation requirements, electric or pneumatic actuators can be provided as per Indian plant standards.

ADVANTAGES OF DOUBLE FLANGE FABRICATED DAMPER VALVE

High structural strength suitable for large sizes
Custom fabrication as per duct dimensions
Easy installation due to double flange ends
Long service life in harsh industrial environments
Low maintenance compared to lightweight dampers
Suitable for high temperature and dusty air
Cost-effective for Indian industrial applications
Easy repair and refurbishment on site

APPLICATION AREAS IN INDIA

Power Plants
Used in boiler air ducts, flue gas lines, and exhaust systems.

Cement Plants
Installed in kiln ducts, raw mill systems, coal mill circuits, and clinker cooler lines.

Steel Plants
Used in hot air ducts, fume extraction systems, and gas handling lines.

Chemical and Process Industries
Applied in process air systems, exhaust ducts, and isolation duties.

Sugar and Paper Industries
Used in boiler air systems and bagasse or dust-laden air handling.

HVAC and Industrial Ventilation
Suitable for large industrial buildings, warehouses, and process halls.

WHY INDIAN BUYERS PREFER FABRICATED DAMPER VALVES

Indian industries often operate in challenging environments with dust, vibration, and variable temperatures. Fabricated damper valves are preferred because they can be designed thicker, stronger, and more rugged than standard cast or light fabricated alternatives. Local fabrication also ensures easy availability of spares and faster service support.

Krishna Industries understands Indian site realities and fabricates damper valves accordingly. Our designs are practical, service-friendly, and optimized for long-term use rather than theoretical laboratory conditions.

QUALITY CONTROL AND TESTING

Each Double Flange Fabricated Damper Valve supplied by Krishna Industries undergoes strict quality checks. Material inspection, dimensional verification, weld quality inspection, and operational checks are performed before dispatch. Trial assembly is done to ensure smooth operation and correct alignment.

Surface finishing is carried out using industrial-grade primer and paint suitable for Indian climatic conditions. Optional high-temperature or corrosion-resistant coatings can be provided as per requirement.

CUSTOMIZATION CAPABILITY

One of the key advantages of choosing Krishna Industries is our ability to customize. We can manufacture Double Flange Fabricated Damper Valves in various sizes, shapes, and configurations to match duct drawings. Thickness, flange drilling, shaft extension, and operating mechanism can be modified based on site requirements.

We regularly work with EPC contractors and plant maintenance teams across India to deliver valves that fit seamlessly into existing systems without modification at site.

POSITIONING OF KRISHNA INDUSTRIES

Krishna Industries is positioned as a reliable Indian supplier of Double Flange Fabricated Damper Valves from Ahmedabad, Gujarat. Our manufacturing base allows us to supply consistently to customers in Gujarat, Maharashtra, Rajasthan, Madhya Pradesh, Tamil Nadu, Karnataka, Telangana, Andhra Pradesh, and other major industrial states of India.

We focus on long-term relationships rather than one-time sales. Indian buyers value consistency, fair pricing, and dependable support, and this philosophy drives our operations.

MINIMUM ORDER QUANTITY

The minimum order quantity for Double Flange Fabricated Damper Valves is 5 numbers. This allows us to maintain quality control, optimize fabrication processes, and offer competitive pricing to Indian buyers.

PACKING AND DISPATCH

Valves are securely packed to prevent transit damage. Flange faces are protected, shafts are locked, and accessories are packed separately when required. Dispatch is done through reliable Indian transporters with proper documentation.

FREQUENTLY ASKED QUESTIONS

1. What is the minimum order quantity for Double Flange Fabricated Damper Valves
The minimum order quantity is 5 numbers.

2. Are these valves suitable for Indian industrial conditions
Yes, they are specifically designed and fabricated for Indian operating environments including dust, heat, and continuous operation.

3. Can the valve size be customized
Yes, sizes and fabrication details can be customized as per duct drawings or site requirements.

4. What material is used for fabrication
Standard mild steel plates and structural sections are used. Other materials can be discussed if required.

5. What type of operation is available
Manual hand lever, worm gearbox, or actuator-based operation can be provided.

6. Are these valves suitable for high temperature applications
Yes, they are commonly used in high temperature air and flue gas applications in Indian plants.

7. Do you provide sealing options
Yes, metal-to-metal sealing and soft sealing options are available depending on application.

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

9. Do you supply across India
Yes, we supply Double Flange Fabricated Damper Valves to customers across India.

10. How do Indian buyers place orders
Orders can be placed directly with Krishna Industries through formal purchase orders after technical and commercial discussion.

CONCLUSION

The Double Flange Fabricated Damper Valve is an essential component in Indian industrial air and gas handling systems. Its rugged construction, flexible design, and reliable performance make it a preferred choice across multiple industries. Krishna Industries, Ahmedabad, offers a dependable Indian supply source for these valves, combining fabrication expertise, quality focus, and practical design.

For Indian buyers looking for a strong, long-lasting, and service-friendly damper valve solution, Double Flange Fabricated Damper Valves from Krishna Industries provide excellent value and performance.