Double Eccentric Butterfly Valve
Specifications
Confirmed at quote- Size Range
- DN50 to DN1600
- Pressure Class
- PN10 / Class 150 to PN100 / Class 600
- Standards
- ASME B16.34, API 609, EN 593, ISO 5752, EN 558, API 598, ISO 5208, EN 12266-1, GOST 9544, ASME B16.34 (Pressure Temperature Rating), EN 12516-1 (Pressure Temperature Rating), ASME B16.5 (Flange Standard), ASME B16.47 (Flange Standard), EN 1092 (Flange Standard), GOST 33259 (Flange Standard), GB/T 9124 (Flange Standard)
- End connection
- ASME B16.5 flange · ASME B16.47 flange · EN 1092 flange · GOST 33259 flange · GB/T 9124 flange
Available sizes
Standard DN sizes covered by this product. Confirmed at quote.
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- Pressure
- End connection
Materials
All available material options per part. Click a pill to set it in the configurator.
- body
Features
- Single elastic valve seat sealing structure achieves dynamic sealing through system pressure
- Bidirectional leak-free sealing capability
- Lip-edge sealing design compensates for temperature and pressure changes
- Double eccentric disc design eliminates contact between valve seat and disc during opening and closing, removing wear at upper and lower seat ends during frequent operation
- Reduced operating torque due to double eccentric structure
- Shaft fly-prevention step at top prevents upper shaft from exiting the valve cover in case of accident
- Valve seat replaceable by removing pressure plate only, without disassembling disc and shaft
- Combines flow shut-off and control functions
- Flow characteristic curve follows geometric ratio change
- Wide adjustment range; tight seal maintained during control operation
- Sealing achieved without additional sealing rings or metal components
- Spherical arc sealing surface on valve disc
- Small volume and light weight
- Wide manufacturing size range
Notes
- Operator options listed as: Manual, Pneumatic, Electric, etc.
Description
A double eccentric high-performance butterfly valve with a spherical arc sealing surface on the disc. The sealing mechanism achieves a dynamic seal through system pressure using a single flexible lip-shaped sealing seat, providing bidirectional leak-free sealing. Suitable for quick shut-off or flow regulation across a wide range of industrial applications.
Available pressure classes
Pressure classes this product is rated to.
Smart find
Searches our product catalogue using your spec. Drop a PDF (or multiple PDFs at once), paste a description or a part number and we'll find the closest matches for each. Anything we can't match goes to your RFQ as a custom enquiry for our team to source.Related Butterfly Valves
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Adds to your quote request — not a purchase. Refine size, pressure and material before submitting.