Lug Type Butterfly Valves
Bronze Disc Lug Butterfly Valve
Bronze disc lug butterfly valve; GGG40.3 ductile iron body, aluminium bronze disc and NBR sealed, with threaded lugs (lug) that fasten separately to flanges with bolts, is a lug type butterfly valve. Aluminium bronze exhibits high resistance to the corrosive effect of seawater, so it is used in seawater lines of ships, shipyards and coastal facilities.
Operates up to +90 °C with NBR seal. Operating pressure is PN16 in the DN40–DN300 range, PN10 in the DN350–DN600 range; flange connection is PN16. Manufactured to TS EN 593 standard. Lug type models approved for marine applications by DNV-GL marine type (DN80–DN400, +80 °C) are also available.
DN40–DN600Nominal size
PN16 / PN10Working pressure
+90 °CMaximum temperature
Al-bronzeSeawater-resistant disc
Benefits
- Seawater-resistant aluminium bronze disc
- Ductile iron body
- Oil and fuel-resistant NBR seal
- Threaded lugs ensure the valve remains in place even if one side of the line is removed; can be used as an end valve
- DNV-GL marine type approved option
Applications
- Ship and shipyard seawater lines
- Coastal facilities and seawater cooling
- Saltwater and brine lines
- Oil and fuel lines
Technical Specifications
| Nominal size | DN40 – DN600 |
|---|---|
| Working pressure | PN16 (DN40–DN300); PN10 (DN350–DN600) |
| Flange pressure rating | PN16 |
| Maximum temperature | +90 °C |
| Connection | Lug (threaded lug) |
| Standard | TS EN 593 |
Materials
| Body | GGG40.3 ductile iron |
|---|---|
| Disc | Aluminium bronze |
| Shaft | AISI 420 stainless steel |
| Seal | NBR |
Why ORFA?
Since 1985Over 40 years of experience in industrial piping equipment supply.
Technical AdviceSupport in selecting the correct valve according to line pressure and size.
Stock DeliveryCommon sizes shipped from warehouse same day.
Spare PartsBall seal, gland nut and lever kit and other valve spare parts from a single source.
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