The valve features two parallel gate plates and a wedging device, updating the traditional single gate plate design.
Sealing elements are designed as separate components, which prevents deformation from thermal expansion and temperature
differences, ensuring a reliable seal.
The materials used for the sealing components are resistant to wear and corrosion, enhancing the valve's longevity.
It is equipped with a bidirectional forced sealing capability, which simplifies operations and ensures a dependable seal.
The fully enclosed design of the valve provides excellent protection, allowing for operation in all weather conditions.
◎ Material: Carbon Steel, Stainless Steel, Alloy Steel
◎ Nominal Size: NPS 2"~60" , DN 50~1500
◎ Pressure Rate: Class 150~2500, PN 10~420
◎ Temperature Range: -60°C~+538°C
◎ Operator: Manual, Pneumatic, Electric, etc.
◎ Application range: tap water, sewage, construction, petroleum, chemical industry, food.
Material: Carbon Steel, Stainless Steel, Alloy Steel
Nominal Size: NPS 2"~60" , DN 50~1500
Pressure Rate: Class 150~2500, PN 10~420
Temperature Range: -60°C~+538°C
Operator: Manual, Pneumatic, Electric, etc.
Application range: tap water, sewage, construction, petroleum, chemical industry, food.
The hard-sealed butterfly valve is a newly developed long-life, energy-saving butterfly valve by our company. It consists of main components such as the valve body, butterfly disc, sealing ring, and transmission mechanism. Its structure is designed based on the two-dimensional or three-dimensional eccentric principle and features a new manufacturing process that accommodates both elastic and multi-layer hard-soft seals. This design reduces torque during operation, achieving energy efficiency and labor-saving benefits. At the same time, it ensures the valve's overall reliability in corrosion resistance, high temperature tolerance, and wear resistance. Common types of hard-sealed butterfly valves include wafer type, lug type, and flanged type butterfly valves.
The structure is simple & compact with: smooth flow passages, high accuracy in flow characteris- tic curves, stable & reliable, economically practical, and easy to maintain. Based on a conventional type, it is designed and developed through modular extension which is capable of producing special structures such as: the C7 series angle type single-seat valve, bellows seal single-seat valve, and insulated jacket type single-seat valve for user selection.
The “Double Block and Bleed Isolation Philosophy” 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.