The ventilation butterfly valve is designed with a centerline or eccentric structure to achieve low pressure drop and high flow capacity. The multi-level sealing system can withstand temperatures up to 300℃ and effectively prevent dust. The valve stem and butterfly plate are forged integrally, providing high strength and long service life. It offers various driving options such as manual, electric or pneumatic, meeting the control requirements for different working conditions. The structure is compact, maintenance is simple, and it is suitable for regulating and cutting the airflow in various ventilation ducts.
Main material: Carbon Steel, Stainless Steel, Alloy Steel, Etc
Size range: DN100～DN6000,NPS4～NPS240
Pressure level: ≤PN6
Temperature range: ≤600℃
Operator: Manual, Pneumatic, Electric, etc..
Application scenarios: Used as a pipeline control device for regulating flow or cutting off gas media in dusty cold or hot air gas pipelines for ventilation and environmental protection projects in industries such as chemical, building materials, power stations, and glass.
◎ Design Standard: API 609,ASME B16.34,JB/T8692
◎ Pressure Temperature Rate: ASMEN B16.34,GB/T12224
◎ Face to Face: ASME B16.10,GB/T12221
◎ Flange Standard: ASME B16.5,ASME B16.47,GB/T9124
◎ Butt Weld Standard: ASME B16.25,GB/T12224
◎ Pressure Test: API 598 GB/T13927
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