Pneumatic Butterfly Valves – Industrial Grade Flow Control Solutions for Indian Industries
Introduction
Pneumatic Butterfly Valves are one of the most widely used industrial flow control valves in modern process industries across India. These valves are designed to regulate, isolate, or control the flow of liquids, gases, slurries, and semi-solids by using a quarter-turn disc mechanism operated through pneumatic actuators. Due to their compact design, fast operation, low maintenance, and compatibility with automation systems, pneumatic butterfly valves have become a preferred choice over traditional gate valves and globe valves in many Indian manufacturing and utility applications.
At Krishna Industries, Ahmedabad, Gujarat, India, we specialize in supplying high-quality Pneumatic Butterfly Valves engineered for Indian operating conditions, Indian plant environments, and Indian industry standards. Our pneumatic butterfly valves are extensively used in water treatment plants, chemical processing units, pharmaceutical factories, power plants, food and beverage industries, HVAC systems, cement plants, textile industries, and general industrial pipelines across the country.
This product page is dedicated entirely to Indian buyers, including industrial end-users, EPC contractors, OEMs, plant maintenance teams, wholesalers, distributors, and automation system integrators. The minimum order quantity for this product is 10 units, making it ideal for bulk buyers and project-based requirements.
What is a Pneumatic Butterfly Valve
A Pneumatic Butterfly Valve is a flow control valve that uses compressed air to operate the valve disc. The disc is mounted on a shaft, and when the actuator rotates the shaft by 90 degrees, the valve opens or closes. The pneumatic actuator converts air pressure into mechanical motion, allowing precise and fast control of the valve without manual intervention.
Compared to manual butterfly valves, pneumatic butterfly valves provide better control accuracy, higher operational safety, and seamless integration with automated process control systems. Compared to electric butterfly valves, pneumatic versions are often preferred in Indian industries due to their faster response time, explosion-safe operation, and lower maintenance in harsh environments.
Key Related Product Keywords Integrated in This Product
These related product keywords represent closely associated valve types and are naturally integrated into this product description to help Indian buyers clearly understand the application range and compatibility of pneumatic butterfly valves with existing pipeline systems.
Construction and Design Details
Pneumatic Butterfly Valves supplied by Krishna Industries are manufactured using robust and proven design principles suitable for Indian industrial conditions.
Valve Body The valve body is typically available in Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel 304, and Stainless Steel 316. For corrosive applications such as chemicals, pharmaceuticals, and effluent treatment plants, SS 316 body options are widely preferred in India.
Disc The disc is precision-machined to ensure tight shut-off and smooth operation. Disc materials include SS 304, SS 316, CF8, CF8M, and special alloy steels depending on application requirements.
Seat The seat is the sealing component and is available in materials such as EPDM, NBR, PTFE, Viton, and Silicone. EPDM is commonly used for water and wastewater applications, while PTFE and Viton are preferred in chemical and high-temperature processes.
Shaft The shaft is made from stainless steel and is designed to withstand repeated cycles, pressure loads, and torque requirements during long-term operation.
Pneumatic Actuator The pneumatic actuator can be double-acting or single-acting (spring return). Double-acting actuators use air pressure for both opening and closing, while spring return actuators automatically return the valve to a safe position during air failure.
Mounting Standard Valves are supplied with ISO mounting pads, allowing easy installation of actuators, limit switches, solenoid valves, and positioners.
Working Principle
The working principle of a pneumatic butterfly valve is simple and efficient. Compressed air is supplied to the actuator through a solenoid valve or direct air line. When air enters the actuator chamber, it pushes the pistons, causing the actuator shaft to rotate. This rotation is transferred to the valve shaft, which rotates the disc.
When the disc aligns parallel to the pipeline, the valve is fully open. When the disc rotates perpendicular to the pipeline, the valve is fully closed. This quarter-turn operation ensures fast response, minimal pressure drop, and reliable shut-off.
In Indian industries where automation and safety are critical, pneumatic butterfly valves are widely used due to their predictable operation and compatibility with PLC and DCS systems.
Advantages of Pneumatic Butterfly Valves
Compact and Lightweight Design Compared to gate valves and globe valves, butterfly valves are compact and lightweight, making installation easier, especially in large diameter pipelines common in Indian water and utility projects.
Fast Operation Pneumatic actuators allow quick opening and closing, which is essential in emergency shutdown systems and automated process lines.
Low Maintenance With fewer moving parts and robust construction, pneumatic butterfly valves require minimal maintenance, reducing downtime and operating costs.
Automation Friendly These valves integrate easily with solenoid valves, limit switches, positioners, and control panels used in Indian industrial automation systems.
Cost Effective for Large Sizes For medium and large pipeline sizes, pneumatic butterfly valves are more economical compared to ball valves or gate valves.
Safe for Hazardous Areas Pneumatic operation eliminates the risk of sparks, making these valves suitable for hazardous and explosive environments common in chemical and petrochemical plants.
Applications in Indian Industries
Pneumatic Butterfly Valves supplied by Krishna Industries are used across a wide range of Indian industrial sectors.
Water Treatment Plants Used in raw water intake, filtration systems, distribution pipelines, and effluent treatment plants.
Chemical Processing Industries Suitable for acids, alkalis, solvents, and chemical slurries when selected with appropriate materials.
Pharmaceutical Industries Used in utility lines, process pipelines, and clean-in-place systems where hygiene and reliability are essential.
Food and Beverage Industries Applied in water, air, and non-viscous food-grade applications with suitable seat materials.
Power Plants Used in cooling water systems, ash handling systems, and auxiliary pipelines.
HVAC Systems Commonly used in chilled water and hot water circulation systems.
Cement and Steel Plants Used in dust handling, air flow control, and utility pipelines.
Available Sizes and Pressure Ratings
Krishna Industries supplies Pneumatic Butterfly Valves in a wide range of sizes suitable for Indian piping standards.
Common size range includes DN40 to DN600 and above. Pressure ratings typically include PN10, PN16, and higher depending on design and application.
End connections are available in wafer type and lug type designs compatible with Indian standard flanges.
Quality Assurance and Testing
Every pneumatic butterfly valve supplied by Krishna Industries undergoes strict quality checks. Valves are tested for pressure, leakage, and operational performance before dispatch. Actuators are tested for torque output, air leakage, and cycle performance.
This ensures that Indian buyers receive reliable, durable, and performance-tested valves suitable for long-term industrial use.
Why Choose Krishna Industries
Krishna Industries is a trusted supplier of industrial valves based in Ahmedabad, Gujarat, India. With deep knowledge of Indian industrial requirements, we focus on supplying valves that meet practical site conditions, budget expectations, and long-term performance needs.
We serve customers across Gujarat, Maharashtra, Rajasthan, Madhya Pradesh, Delhi NCR, Tamil Nadu, Karnataka, Telangana, West Bengal, and other major industrial regions of India.
Our strengths include: Consistent quality supply Bulk order capability with MOQ of 10 units Technical guidance for valve selection Reliable delivery for project timelines Strong after-sales support
Minimum Order Quantity
The minimum order quantity for Pneumatic Butterfly Valves is 10 units. This MOQ structure is ideal for Indian project buyers, system integrators, OEMs, and distributors looking for consistent and scalable supply.
Frequently Asked Questions
1. What is the minimum order quantity for pneumatic butterfly valves The minimum order quantity is 10 units.
2. Are these pneumatic butterfly valves suitable for Indian industrial conditions Yes, all valves are selected and supplied keeping Indian operating environments, temperatures, and pressure conditions in mind.
3. What type of actuator is used in these valves Both double-acting and single-acting pneumatic actuators are available based on application requirements.
4. Can these valves be used for automation systems Yes, pneumatic butterfly valves are ideal for automated systems and can be integrated with solenoid valves, limit switches, and control panels.
5. What materials are available for valve body and disc Valve bodies are available in Cast Iron, Ductile Iron, Carbon Steel, SS 304, and SS 316. Discs are typically SS 304 or SS 316.
6. Are these valves suitable for water and chemical applications Yes, with appropriate seat and body material selection, these valves are suitable for water, wastewater, and chemical applications.
7. What industries commonly use pneumatic butterfly valves in India Water treatment, chemical, pharmaceutical, food processing, power plants, HVAC, cement, and textile industries.
8. Do these valves require high maintenance No, pneumatic butterfly valves are low maintenance due to simple construction and durable materials.
9. Are spare parts available in India Yes, common spare parts such as seals and actuators are available through Krishna Industries.
10. From where are these pneumatic butterfly valves supplied All pneumatic butterfly valves are supplied by Krishna Industries, Ahmedabad, Gujarat, India.
Conclusion
Pneumatic Butterfly Valves are an essential component in modern Indian industrial piping systems where automation, reliability, and efficiency are critical. With fast operation, compact design, and compatibility with industrial control systems, these valves offer excellent value across a wide range of applications.
Krishna Industries, Ahmedabad, Gujarat, India, stands as a reliable supplier of Pneumatic Butterfly Valves for Indian buyers seeking quality, consistency, and technical support. With a minimum order quantity of 10 units and a strong focus on Indian industries, we are committed to supporting industrial growth with dependable flow control solutions.
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