High Performance Butterfly Valve
It adopts a double eccentric butterfly plate with a spherical sealing surface and a single-piece flexible lip seal seat, which is suitable for occasions requiring reliable sealing and adjustment characteristics. Due to the design of the double eccentric butterfly plate, the valve has tight sealing performance and a long service life. Can be used to quickly cut off or adjust flow. The product is suitable for the transportation of liquids and gases (including steam) in various industrial pipelines. Can also be used with media such as chlorine, oxygen, high vacuum, sulfur resistant or corrosive media.
Manufacturing Range
Body material: carbon steel, stainless steel, alloy steel
Full bore and reduced bore design
Nominal diameter:DN50-DN800
Pressure range: 0.6MPa-2.5MPa
Structure Type: single eccentric, double eccentric
Connection End：Wafer，Flanged，Lug
Working temperature: -46℃~550℃
Operation :Worm-gear,Pneumatic actuator, Electric actuator.
Design Features
High-performance butterfly valve has lighter torque.
Good fire resistance.The hard-sealed structure has essential fire protection capabilities.
Zero leakage in both directions.
Easy to maintain.The valve seat can be replaced without disassembling the butterfly plate and valve stem.
The double eccentric structure reduces sealing friction caused by frequent opening.
Design Standards
Design and Manufacture：GB/T12238-1989；JB/T8527-1997；API609、MSS SP-67、MSS SP-68
Face to Face Dimension：GB/T12221-1989
Flange Connection Dimension：GB/T9113.1-2000；GB/T9113.2-2000；GB/T9115.1-2000；GB/T9115.2-2000；ASME B16.5(NPS≤24)、ASME B16.47 B
Test and Inspection：GB/T13927-1992；JB/T9092-1999；API598
Butt weld end: ASME B16.25
Temperature and pressure rating: ASME B16.34
Fire-Safe Design:API 607
