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Yuefeng Valve’s Pneumatic Butterfly Valve Series is a compact, high-efficiency flow control solution designed to deliver fast response and reliable performance in modern industrial settings. This valve integrates a lightweight structure with powerful pneumatic actuation (AT/AW Series), specializing in both on-off and throttling control for a wide range of media—from clean water to corrosive chemicals. It stands out as a cost-effective choice for industries seeking to balance performance, space efficiency, and operational flexibility.
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Manufactured in adherence to GB/12238 and API 609 standards, the valve offers dual sealing options (soft-sealed and hard-sealed) to adapt to diverse working conditions. Its customizable design—including structural length, flange size, and material configurations—ensures it meets the unique needs of various industrial processes, while its compatibility with automated control systems makes it a forward-thinking solution for smart factories.
| Item | GB Standard | ANSI Standard |
| Design Standard | GB/12238 | API 609 |
| Face to face dimension & Flange connecting | GB/12221 | ANSI B16.10 |
| Connecting Flange Size | GB/9113, JB/T79 | ANSI B16.5(224"); ANSI B16.47(2632") |
| Test & Inspection | JB/T9092 | API 598 |
Significantly smaller and lighter than traditional gate valves, the Pneumatic Butterfly Valve saves valuable installation space and reduces piping support costs. This makes it an ideal choice for space-constrained systems such as skid-mounted equipment, shipboard piping, and building HVAC systems.
Equipped with AT/AW Series pneumatic actuators (available in double-acting and single-acting/spring reposition options), the valve delivers fast opening and closing responses. This enhances operational efficiency in dynamic processes requiring rapid flow adjustments, while supporting easy integration with PLC and automated control systems.
The valve offers two sealing options: soft-sealed (PTFE/graphite) for leak-proof performance in clean media (e.g., water, food-grade fluids) and hard-sealed for high-temperature, abrasive, or corrosive applications. This versatility allows it to adapt to diverse industrial needs without compromising performance.
The valve body and butterfly plate are crafted from WCB or high-grade stainless steel alloys, while PTFE composite bushings reduce friction between moving parts. This combination of materials ensures corrosion resistance, wear resistance, and extended service life—lowering long-term operational costs.
Structural length, flange size, and sealing materials can be tailored to specific working conditions, such as corrosive media, high pressure, or hygiene requirements. The low flow resistance design minimizes pressure drop, reducing energy consumption for fluid transfer.
Perfect for heating, ventilation, and air conditioning systems, the valve’s fast response, low flow resistance, and compact size optimize energy efficiency and space utilization in commercial and residential buildings.
Soft-sealed (PTFE) options meet strict hygiene standards, making the valve suitable for transferring water, syrup, and other food-grade fluids in processing plants, breweries, and beverage production facilities.
Widely used in water supply networks, sewage treatment plants, and irrigation systems, the valve balances durability and cost-effectiveness for large-scale municipal projects requiring reliable flow control.
Corrosion-resistant materials and compact design make the valve ideal for shipboard piping systems, controlling ballast water, fuel, and cooling fluids in marine and offshore applications.
Resistant to corrosive chemicals (acids, alkalis, solvents) when equipped with ZG1Cr18Ni12Mo2Ti materials and PTFE sealing, the valve ensures safe and reliable operation in chemical processing plants.
It supports AT Series (AT063DAT270D) and AW Series (AW20AW40S) pneumatic actuators, with double-acting (XXX/XXX) and single-acting (spring reposition) options. The specific model is selected based on the valve’s nominal diameter (DN) and pressure rating.
Yes. It offers both on-off and throttling control capabilities, with precise flow regulation enabled by its pneumatic actuation system—suitable for processes requiring variable flow rates, such as chemical dosing or HVAC temperature control.
Absolutely. For corrosive media, select ZG1Cr18Ni9Ti or ZG1Cr18Ni12Mo2Ti materials paired with PTFE sealing. This configuration ensures long-term resistance to chemical degradation and maintains leak-proof performance.
The standard nominal diameter (DN) range is 50~800. Custom diameters, structural lengths, or flange sizes can be manufactured to meet specific project requirements—contact our technical team for personalized solutions.
The butterfly valve is 30-50% more compact and lighter than gate valves of the same DN. This space-saving advantage makes it ideal for tight installations, such as skid-mounted systems, shipboard applications, or retrofitted piping networks.
Note: The main spare parts and sealing-ring materials of butterfly valve series can be designed for options as per real working conditions and users' special requirements.
Note: The strrctural length and connecting flange size of butterfly valve series can be designed and manufactured as per JB/T79 standard or users' requirements.
Data XXX/XXX represent respectively the double-acting/single-acting type(spring reposition)of pneumatic actuator.
The relative sizes are subject to change responding to the difference in valve torque. medium and actuator model.
The above actuator configuration and data all use soft-sealed valves(F), and hard-sealed valves, or consulting us if you have more questions.
Manufactured in adherence to GB/12238 and API 609 standards, the valve offers dual sealing options (soft-sealed and hard-sealed) to adapt to diverse working conditions. Its customizable design—including structural length, flange size, and material configurations—ensures it meets the unique needs of various industrial processes, while its compatibility with automated control systems makes it a forward-thinking solution for smart factories.
| Item | GB Standard | ANSI Standard |
| Design Standard | GB/12238 | API 609 |
| Face to face dimension & Flange connecting | GB/12221 | ANSI B16.10 |
| Connecting Flange Size | GB/9113, JB/T79 | ANSI B16.5(224"); ANSI B16.47(2632") |
| Test & Inspection | JB/T9092 | API 598 |
Significantly smaller and lighter than traditional gate valves, the Pneumatic Butterfly Valve saves valuable installation space and reduces piping support costs. This makes it an ideal choice for space-constrained systems such as skid-mounted equipment, shipboard piping, and building HVAC systems.
Equipped with AT/AW Series pneumatic actuators (available in double-acting and single-acting/spring reposition options), the valve delivers fast opening and closing responses. This enhances operational efficiency in dynamic processes requiring rapid flow adjustments, while supporting easy integration with PLC and automated control systems.
The valve offers two sealing options: soft-sealed (PTFE/graphite) for leak-proof performance in clean media (e.g., water, food-grade fluids) and hard-sealed for high-temperature, abrasive, or corrosive applications. This versatility allows it to adapt to diverse industrial needs without compromising performance.
The valve body and butterfly plate are crafted from WCB or high-grade stainless steel alloys, while PTFE composite bushings reduce friction between moving parts. This combination of materials ensures corrosion resistance, wear resistance, and extended service life—lowering long-term operational costs.
Structural length, flange size, and sealing materials can be tailored to specific working conditions, such as corrosive media, high pressure, or hygiene requirements. The low flow resistance design minimizes pressure drop, reducing energy consumption for fluid transfer.
Perfect for heating, ventilation, and air conditioning systems, the valve’s fast response, low flow resistance, and compact size optimize energy efficiency and space utilization in commercial and residential buildings.
Soft-sealed (PTFE) options meet strict hygiene standards, making the valve suitable for transferring water, syrup, and other food-grade fluids in processing plants, breweries, and beverage production facilities.
Widely used in water supply networks, sewage treatment plants, and irrigation systems, the valve balances durability and cost-effectiveness for large-scale municipal projects requiring reliable flow control.
Corrosion-resistant materials and compact design make the valve ideal for shipboard piping systems, controlling ballast water, fuel, and cooling fluids in marine and offshore applications.
Resistant to corrosive chemicals (acids, alkalis, solvents) when equipped with ZG1Cr18Ni12Mo2Ti materials and PTFE sealing, the valve ensures safe and reliable operation in chemical processing plants.
It supports AT Series (AT063DAT270D) and AW Series (AW20AW40S) pneumatic actuators, with double-acting (XXX/XXX) and single-acting (spring reposition) options. The specific model is selected based on the valve’s nominal diameter (DN) and pressure rating.
Yes. It offers both on-off and throttling control capabilities, with precise flow regulation enabled by its pneumatic actuation system—suitable for processes requiring variable flow rates, such as chemical dosing or HVAC temperature control.
Absolutely. For corrosive media, select ZG1Cr18Ni9Ti or ZG1Cr18Ni12Mo2Ti materials paired with PTFE sealing. This configuration ensures long-term resistance to chemical degradation and maintains leak-proof performance.
The standard nominal diameter (DN) range is 50~800. Custom diameters, structural lengths, or flange sizes can be manufactured to meet specific project requirements—contact our technical team for personalized solutions.
The butterfly valve is 30-50% more compact and lighter than gate valves of the same DN. This space-saving advantage makes it ideal for tight installations, such as skid-mounted systems, shipboard applications, or retrofitted piping networks.
Note: The main spare parts and sealing-ring materials of butterfly valve series can be designed for options as per real working conditions and users' special requirements.
Note: The strrctural length and connecting flange size of butterfly valve series can be designed and manufactured as per JB/T79 standard or users' requirements.
Data XXX/XXX represent respectively the double-acting/single-acting type(spring reposition)of pneumatic actuator.
The relative sizes are subject to change responding to the difference in valve torque. medium and actuator model.
The above actuator configuration and data all use soft-sealed valves(F), and hard-sealed valves, or consulting us if you have more questions.