| Valve Type | Flange butterfly valve | Structure | Concentric |
| Standard | EN593 | Workmanship | Investment casting |
| Sealing Direction | Bidirectional | Sealing Grade | Zero leakage |
| Temperature | -20°C < T < 120°C | Operation | Handle/Lever |
Heavy-type construction for durability.
Superior wear resistance.
Meets strict sealing standards.
Various sizes ready for shipment.
PTFE Seating: The valve seat is made of PTFE material, featuring an extremely low friction coefficient, excellent chemical stability, and self-lubricating properties. It effectively resists corrosion from strong acids, bases, and organic solvents.
1. Bidirectional Sealing: The midline structure allows the butterfly plate to remain concentric with the seat. Coupled with the PTFE seat fit, it achieves bi-directional pressure sealing, making installation flexible and ensuring zero leakage.
2. Superior Corrosion Resistance: Built with 304/316 stainless steel, the valve body and plate are resistant to oxidation. This combination withstands highly corrosive media such as salt spray and organic solvents, outperforming standard carbon steel valves.



| Part Name | Material Options |
|---|---|
| Valve Body | Cast iron, Ductile iron, Stainless steel |
| Valve Disc | Ductile iron, Stainless steel, Aluminium alloy |
| Valve Stem | Carbon steel, Stainless steel |
| Valve Seat | Rubber / PTFE |
| Seal | O Type ring |
| DN (mm/inch) | L | L1 | D (PN1.0/1.6) | D1 | H | H1 | n-Φd | ||
| 50 | 2" | 108 | 180 | 125 | 125 | 150 | 326 | 83 | 4-Φ18 |
| 80 | 3" | 114 | 180 | 160 | 160 | 200 | 363 | 100 | 8-Φ18 |
| 100 | 4" | 127 | 180 | 180 | 180 | 220 | 396 | 114 | 8-Φ18 |
| 150 | 6" | 140 | 180 | 240 | 240 | 280 | 453 | 143 | 8-Φ23 |
| 200 | 8" | 152 | 270 | 295 | 295 | 335 | 578 | 170 | 12-Φ23 |