The Soft Seal Flange Butterfly Valve is a high-performance flow control device designed for precise regulation of liquids, gases, and semi-solids in various industrial applications.
Product Description
The Soft Seal Flange Butterfly Valve is a high-performance flow control device designed for precise regulation of liquids, gases, and semi-solids in various industrial applications. Featuring a resilient seat for tight shut-off and flanged connection for easy installation, this valve offers excellent performance with minimal maintenance requirements.
Key Features
Technical Specifications
| Valve Size | DN50 to DN1200 (2″ to 48″) |
| Pressure Rating | PN10/PN16 (Class 150/300 optional) |
| Temperature Range | -20°C to +180°C (-4°F to 356°F) |
| Seat Material | EPDM, NBR, Viton, PTFE (optional) |
| Disc Material | Stainless Steel 304/316, Ductile Iron with epoxy coating |
| Body Material | Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel |
| Connection Type | Flanged (ANSI, DIN, JIS, BS standards) |
| Leakage Class | ANSI Class VI (bubble-tight) |
| Testing Standard | API 598, ISO 5208, EN 12266-1 |
Typical Applications
Operation Principle
The Soft Seal Flange Butterfly Valve operates through a 90° rotation of the disc. When the valve is open, the disc is parallel to the flow, offering minimal resistance. When closed, the disc rotates perpendicular to the flow, with the soft seat creating a bubble-tight seal. The flanged connection ensures secure mounting between pipeline flanges with gasket sealing.
