Lug Type Butterfly Valves
PTFE-Sealed Lug Butterfly Valve
PTFE-sealed lug butterfly valve; cast iron body, AISI 316 stainless steel disc and PTFE sealing elements, mounted via threaded lugs onto flanges with individual bolts. PTFE is resistant to virtually all chemicals, making it the preferred choice for acid, alkali, solvent and food lines where elastomer seals are unsuitable.
Rated for PN10 working pressure, PN16 flange connection and temperatures up to +110 °C. Available in DN50–DN300. Full PTFE models with disc also coated in PTFE are available for the most aggressive fluids. Manufactured to TS EN 593 standard.
DN50–DN300Nominal diameter
PN10Working pressure
+110 °CMax. temperature
PTFETeflon seal
Benefits
- Wide chemical-resistant PTFE seal
- AISI 316 stainless steel disc
- Full PTFE option (PTFE-coated disc)
- Threaded lugs keep valve in place even if one line is disconnected; suitable as terminal valve
- Top flange ready for actuator mounting
Applications
- Chemical and petrochemical lines
- Food and beverage processes
- Solvent and acid lines
- Pharmaceutical and cosmetic manufacturing
Technical Specifications
| Nominal diameter | DN50 – DN300 |
|---|---|
| Working pressure | PN10 |
| Flange pressure class | PN16 |
| Max. temperature | +110 °C |
| Connection | Lug (threaded lugs) |
| Standard | TS EN 593 |
Materials
| Body | GG-25 cast iron, epoxy painted |
|---|---|
| Disc | AISI 316 stainless steel (option: PTFE-coated) |
| Stem | AISI 420 stainless steel |
| Seal | PTFE (teflon) |
Why ORFA?
Since 1985Over 40 years’ experience in industrial piping equipment supply.
Technical AdvisorySupport in selecting the right valve for your line pressure and size.
Stock DeliveryCommon sizes dispatched same-day from warehouse.
Spare PartsBall seals, packing and handle kits plus other valve spare parts from a single source.
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