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JONENG
STAINLESS STEEL Aluminum Groove Type Demco Gearbox Butterfly Valve
The Stainless Steel Sanitary Pneumatic Split Rotary Butterfly Valve is an automated valve designed for hygienic flow control. Its split rotary disc allows precise modulation, while the pneumatic actuator enables fast, reliable operation in food, pharmaceutical, and biotechnology processing systems
Working Principles
The Demco gearbox butterfly valve, featuring a grooved design on stainless steel and aluminum alloy, opens and closes pipeline media by pneumatically or manually rotating the valve stem. The gearbox amplifies the operating torque, allowing the butterfly plate to easily open and close within the pipeline. When opening, the butterfly plate rotates away from the valve seat, allowing for smooth media flow; when closing, the butterfly plate presses against the valve seat, achieving a reliable seal and preventing media leakage. The butterfly plate can be designed eccentrically or standardly to reduce friction and wear, extending service life. The grooved valve body facilitates quick installation and disassembly, making it suitable for automated control and frequent opening/closing conditions in water, gas, steam, and chemical liquid pipelines.
Stainless Steel Butterfly Valve Specification Chart
Working Pressure | 10 Bar (Max. Pressure is 16bar for but welded connection in small sizes |
Working temperature | -10ºC TO + 120ºC |
Size | 1/2”-12”, DN15-DN300 |
Grade | AISI304 and AISI316L |
FDA approved gaskets in silicone, EPDM, viton, PTFE | |
Connection | Clamp, Weld, Thread,male threaded; female threaded; flange end;union connection |
Surface | Sanitary inside polish (Ra ≤ 0.8 μm) |
Sanitary outside polish (Ra ≤1.6 μm) | |
Standard | ISO, 3A, SMS, RJT, DIN and so on |
Butterfly valve disc and body is made from forging | |
Manual or pneumatic actuated or electric actuated are chosen as per the different applications. | |
Required compressed air | 4-8Bar |
Connection of compressed air | G 1/8’’ |
Limit switch | 6-36V, DC 2nos of NPN or PNP( to be chose |
Features
Pneumatic Actuation – Provides fast, automated operation for precise flow control, reducing manual intervention and improving process efficiency.
Split Rotary Disc Design – Ensures smooth, stable flow modulation with minimal pressure drop and accurate control.
Stainless Steel Construction – Durable and corrosion-resistant, suitable for hygienic and high-purity applications.
Leak-Free Sealing – Precision-engineered seats ensure reliable shutoff and maintain sanitary integrity.
Sanitary Surface Finish – Smooth, crevice-free interior surfaces support cleaning-in-place (CIP) and minimize contamination risks.
Compact and Versatile – Space-saving design allows easy installation in pipelines and integration with automated systems
Application
The Stainless Steel Sanitary Pneumatic Split Rotary Butterfly Valve is widely used in industries requiring precise, automated, and hygienic flow control. Typical applications include beverage production for controlled liquid distribution, pharmaceutical manufacturing for sterile fluid handling, biotechnology for media transfer, and food processing where contamination-free, accurate flow regulation is essential
Working Principles
The Demco gearbox butterfly valve, featuring a grooved design on stainless steel and aluminum alloy, opens and closes pipeline media by pneumatically or manually rotating the valve stem. The gearbox amplifies the operating torque, allowing the butterfly plate to easily open and close within the pipeline. When opening, the butterfly plate rotates away from the valve seat, allowing for smooth media flow; when closing, the butterfly plate presses against the valve seat, achieving a reliable seal and preventing media leakage. The butterfly plate can be designed eccentrically or standardly to reduce friction and wear, extending service life. The grooved valve body facilitates quick installation and disassembly, making it suitable for automated control and frequent opening/closing conditions in water, gas, steam, and chemical liquid pipelines.
Feature and Specification
Stainless Steel Butterfly Valve Specification Chart
Working Pressure | 10 Bar (Max. Pressure is 16bar for but welded connection in small sizes |
Working temperature | -10ºC TO + 120ºC |
Size | 1/2”-12”, DN15-DN300 |
Grade | AISI304 and AISI316L |
FDA approved gaskets in silicone, EPDM, viton, PTFE | |
Connection | Clamp, Weld, Thread,male threaded; female threaded; flange end;union connection |
Surface | Sanitary inside polish (Ra ≤ 0.8 μm) |
Sanitary outside polish (Ra ≤1.6 μm) | |
Standard | ISO, 3A, SMS, RJT, DIN and so on |
Butterfly valve disc and body is made from forging | |
Manual or pneumatic actuated or electric actuated are chosen as per the different applications. | |
Required compressed air | 4-8Bar |
Connection of compressed air | G 1/8’’ |
Limit switch | 6-36V, DC 2nos of NPN or PNP( to be chose |
Features
Pneumatic Actuation – Provides fast, automated operation for precise flow control, reducing manual intervention and improving process efficiency.
Split Rotary Disc Design – Ensures smooth, stable flow modulation with minimal pressure drop and accurate control.
Stainless Steel Construction – Durable and corrosion-resistant, suitable for hygienic and high-purity applications.
Leak-Free Sealing – Precision-engineered seats ensure reliable shutoff and maintain sanitary integrity.
Sanitary Surface Finish – Smooth, crevice-free interior surfaces support cleaning-in-place (CIP) and minimize contamination risks.
Compact and Versatile – Space-saving design allows easy installation in pipelines and integration with automated systems
Application
The Stainless Steel Sanitary Pneumatic Split Rotary Butterfly Valve is widely used in industries requiring precise, automated, and hygienic flow control. Typical applications include beverage production for controlled liquid distribution, pharmaceutical manufacturing for sterile fluid handling, biotechnology for media transfer, and food processing where contamination-free, accurate flow regulation is essential
