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Product: Cast / Ductile Iron Double Flanged Butterfly Valve Lever & Gear Operated EPDM Lined
Size: DN450 (18″)
Disc Material: DI, SS304 / 316 (CF-8M)
Class: PN 10 / 16 / 25
Body Material: Cast Steel, SS, Cast Iron, Ductile Iron
Body Lining: EPDM, Nitrile, Rubber
End Details: Double Flange as Per ASME B16.5 / ASME B 16.47 Class 125 / 150
Technical Datasheet – Double Flange Butterfly Valves (Lever & Gear Operated) |
|
| Parameter | Specification / Details |
| Valve Type | Double Flanged Butterfly Valves |
| Operation Type | Lever Operated / Gear Operated / Pneumatic Actuator / Electric Actuator |
| Size Range | DN400, 400mm (16 Inch) |
| Pressure Rating / Class | PN 10 / PN 16 / PN 25 |
| End Connection | Double Flange as per ASME B16.5 / ASME B16.47 Class 150 |
| Body Material | Cast Iron (CI), Ductile Iron (DI), Cast Steel (CS), Stainless Steel (SS304 / SS316 / CF-8M) |
| Disc Material | Ductile Iron, Stainless Steel 304 / SS316 (CF-8M) |
| Seat / Lining Material | EPDM, Nitrile (Buna-N), Rubber |
| Design Standard | ISO 5752, API 609, EN 593 |
| Face-to-Face Dimension | EN 558 / ISO 5752 |
| Body Lining | EPDM, Nitrile, Rubber |
| Flange Drilling | ASME / ANSI standard, optional DIN |
Design & Compliance |
|
| Feature | Standard / Specification |
| Body & Flange | ASME B16.5 / ASME B16.47 Class 150 |
| Face-to-Face | EN 558 / ISO 5752 |
| Pressure Test | API 598 / ISO 5208 (shell & seat) |
| Fire-Safe Design | Optional, high-risk applications |
| CE / PED Compliance | Available on request |
| Anti-Static Feature | Optional disc-to-body connection |
| Extended Neck | Optional for insulation requirements |
Pressure & Temperature Ratings |
||
| Class / PN | Max Working Pressure | Working Temperature Range |
| PN10 | 10 bar (145 psi) | -10°C to 120°C (14°F to 248°F) |
| PN16 | 16 bar (232 psi) | -10°C to 120°C (14°F to 248°F) |
| PN25 | 25 bar (362 psi) | -10°C to 120°C (14°F to 248°F) |
Operation / Actuation Details |
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| Operation Type | Description | Typical Size Range |
| Lever Operated | Quick quarter-turn manual operation with adjustable locking positions | DN40 – DN300 |
| Gear Operated | Worm & wheel mechanism for reduced torque operation | DN200 – DN1200 |
| Pneumatic Actuator | Double-acting or spring-return cylinder, automated operation | DN50 – DN1200 |
| Electric Actuator | On/off or modulating actuator compatible with 24V / 110V / 220V | DN50 – DN1200 |
Body & Disc Construction |
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| Component | Material / Feature | Notes |
| Body | Cast Iron, Ductile Iron, Cast Steel, SS304 / SS316 | One-piece, double flanged for strength & reliability |
| Disc | DI, SS304 / SS316 (CF-8M) | Smooth surface, corrosion-resistant, minimal pressure drop |
| Seat / Lining | EPDM, Nitrile, Rubber | Single-piece lining ensures tight shut-off, easy replacement |
| Coating / Finish | Epoxy, Fusion-bonded epoxy, PTFE (optional) | Custom coatings for chemical resistance |
| Face-to-Face | ISO 5752 / EN 558 | Standard dimensions for compatibility |
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