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℃
◎perator: 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
The Double Eccentric High-Performance Butterfly Valve is a new type of butterfly valve designed based on absorbing the advantages of several different structural butterfly valves. The sealing surface of the valve plate of this valve is a - spherical arc surface. The sealing mechanism achieves a true dynamic seal through system pressure, thus having reliable sealing performance and durability. It has a small volume, light weight, wide manufacturing range, and is easy to maintain and repair. Due to the design of the double eccentric butterfly plate, combined with a single piece of flexible lip-shaped sealing seat, it is suitable for valves in situations requiring reliable sealing and good regulating characteristics. It can be used for quick shut-off or regulating flow.
The DBB Ball Valve (Twin Ball) requires two in-line isolation valves and a bleed valve, used to drain or vent trapped fluid between the two closure elements in order to safely isolate safely the downstream pipe. This feature can be achieved with one single valves c/w a bleed port between the obturators.
The Side Entry Cryogenic Floating Ball Valve is specially designed for deep cryogenic media (such as LNG, liquid nitrogen, liquid oxygen, etc.) applications. It adopts a unique side-mounted structure to ensure stable operation in extreme low-temperature environments below -196°C~+150°C. The valve body is made of high-quality stainless steel or special alloy materials, combined with precise processing techniques, achieving zero leakage and long service life under ultra-low temperature conditions. It is widely used in liquefied natural gas, air separation equipment, chemical and energy fields, and is a reliable choice for fluid control in harsh conditions.