Heavy-duty pneumatic flange butterfly valve, DN50-DN1500 (2″-60″). On/off or modulating control. Available in various materials & accessories (solenoid, positioner). Custom sizes & flange standards accepted.
| Attribute | Details |
|---|---|
| Nominal Diameter (Size) | DN50 – DN1500 (2″ – 60″) (Custom sizes available upon request) |
| Nominal Pressure (PN) | PN10 / PN16 / PN25 / PN40 (or ANSI Class 150LB, Class 300LB) |
| Standard Body Materials | Ductile Iron / Cast Steel (WCB) / Stainless Steel (CF8/304, CF8M/316) |
| Disc Materials | Nylon Coated Ductile Iron / SS304 / SS316 / Duplex Steel |
| Stem Materials | 45# Steel (Electroless Nickel Plated / Black Oxide) Stainless Steel 416 / Stainless Steel 17-4PH |
| Seat Materials (Sealing) | EPDM / NBR / PTFE / High-Temperature Viton |
| 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 (Complies with ISO 7005 / DIN / ANSI / GB/T 9119 standards) |
| Control Method | Pneumatic Control (Operated by compressed air for on/off or modulating service) |
| Available Accessories | Solenoid Valve (For pilot air control) Limit Switch Box (For position feedback) Air Filter Regulator (For air source treatment) Smart Valve Positioner (For 4-20mA modulating control) Lock-up Valve / Manual Handwheel Override |
| Applicable Media | Water, Air, Oil, Mild Acids/Alkalis, Steam, Slurry, Gas, etc. |
| Working Temperature | Dependent on seat material (e.g., EPDM: -30℃~120℃; PTFE: -20℃~180℃) |
