DN100 Lug Butterfly Valve (API 609)
DN100 (4") · Lug / Wafer · API 609 · ANSI Class 150 / 300
Reguvale's DN100 Lug Butterfly Valve (API 609) combines a compact body with industrial-grade seating and actuation options for reliable isolation and control duty.
Key Features
Bubble-Tight Shutoff
Soft EPDM/PTFE seat gives zero-leakage isolation for water, oil and chemical lines.
Compact & Lightweight
Wafer body saves weight and installation space versus gate or ball valves.
Anti-Blowout Stem
Stem shoulder and live-loaded packing prevent ejection under line pressure.
Actuator Ready
ISO 5211 top flange accepts pneumatic, electric actuators or gearbox.
Corrosion Resistant
Ductile-iron, WCB or stainless bodies cover most plant media.
Fire-Safe Option
Metal backup seat available for fire-safe duty on request.
Technical Specifications
| Parameter | Specification |
|---|---|
| Body Material | Ductile Iron GGG40/50 · WCB · CF8 (SS304) · CF8M (SS316) |
| Disc | SS304 / SS316 / Nickel-plated Ductile Iron / CF8M |
| Seat | EPDM / PTFE / RPTFE / NBR / FKM |
| Size Range | DN100 (4") |
| Pressure Rating | API 609 · ANSI Class 150 / 300 |
| Connection | Lug / Wafer (ASME B16.5) |
| Temperature Range | EPDM −10°C–+120°C · PTFE −20°C–+180°C |
| Leakage Class | Bubble-tight (soft seat) · API 598 / EN 12266-1 |
| Operation | Lever / Gear / Pneumatic / Electric |
| Design & Dimension | API 609 (Category A/B) |
| Flange / Face-to-Face | API 609 / EN 558 |
| Actuator Mount | ISO 5211 (F03–F10) |
| Certification | ISO 9001:2015 · SGS Material Test (Report QIP-ASI266420) |
Applications & Use Cases
Water & Wastewater
Municipal water, HVAC and irrigation with wafer or lug ends.
HVAC
Chilled/hot water balancing and isolation in building systems.
Oil & Gas
Skid and branch-line isolation with fire-safe soft seats.
Chemical
Corrosive media handled in SS304/316 or PTFE-seated bodies.
