Heavy-duty pneumatic triple eccentric butterfly valve, DN50-DN600 (2″-24″). Metal-to-metal sealing for high temperature & pressure. On/off or modulating control. Zero leakage option. Ideal for steam, oil & gas, corrosive media. Customizable.
| Attribute | Details |
|---|---|
| Nominal Diameter (Size) | DN50 – DN600 (2″ – 24″) (Custom sizes available upon request) |
| Nominal Pressure (PN) | PN10 / PN16 / PN25 / PN40 / PN63 (or ANSI Class 150LB, 300LB, 600LB) |
| Standard Body Materials | Carbon Steel (WCB) / Stainless Steel (CF8/304, CF8M/316) / Duplex Steel |
| Disc Materials | Stainless Steel 304 / 316 / Duplex Steel / with Hardfacing (Stellite) |
| Stem Materials | Stainless Steel 416 / 17-4PH 45# Steel (for lower grades, with anti-corrosion coating) |
| Seat Materials (Sealing) | Metal Seated (SS304/316 with Stellite hardfacing) – for high temperature & wear resistance Optional Soft Seal (PTFE, PPL) – for bubble-tight shut-off |
| Leakage Class | Metal Seat: ANSI Class IV / V / VI (zero leakage optional) Soft Seat: ANSI Class VI (bubble tight) |
| Actuator Type | Double Acting (Air to open, Air to close) Single Acting (Spring Return) —— Normally Closed (Air to open, Spring to close) —— Normally Open (Air to close, Spring to open) |
| Connection Type | Flange Type / Wafer Type / Lug Type (Complies with ISO, DIN, ANSI, GB standards) |
| Control Method | Pneumatic Control (On/Off or Modulating with positioner) |
| Available Accessories | Solenoid Valve / Limit Switch Box / Air Filter Regulator / Smart Valve Positioner / Lock-up Valve / Manual Handwheel |
| Applicable Media | Steam, High-temperature gases, Oil & Gas, Corrosive fluids, Abrasive media, etc. |
| Working Temperature | Metal Seat: -196°C to 600°C (depending on materials) Soft Seat: -40°C to 250°C |
