Duplex Ball Valve
WDL Duplex Ball Valve provides quarter-turn isolation with a direct flow path and tight shutoff for seawater and desalination systems and offshore and marine pipelines. Connections, trim and operation are selected to the project conditions.
Description
Duplex Ball Valve
WDL Duplex Ball Valve provides quarter-turn isolation with a direct flow path and tight shutoff for process systems that need high strength with resistance to chloride pitting and stress-corrosion cracking. Duplex stainless steel combines austenitic and ferritic phases for chloride service that requires higher strength than 300-series stainless steel.
Design Options
| Item | Available specification |
|---|---|
| Material | Duplex 2205, Super Duplex 2507 or project grade |
| Function | quarter-turn isolation with a direct flow path and tight shutoff |
| Connections | Flanged, threaded, socket-welded or butt-welded |
| Operation | Lever, gearbox, pneumatic or electric actuator |
| Design basis | API 608, API 6D, ASME B16.34 or project standard |
Typical Applications
- Seawater and desalination systems
- Offshore and marine pipelines
- Pulp and paper processing
- Tight process isolation
- Automated emergency or batch shutoff
Selection Notes
Choose 2205, 2507 or another grade from chloride level, temperature, pressure and required pitting resistance.
Confirm floating or trunnion design, cavity relief, seat material, fire-safe requirement and bore size.
Frequently Asked Questions
Why select Duplex Stainless Steel for this ball valve?
Duplex stainless steel combines austenitic and ferritic phases for chloride service that requires higher strength than 300-series stainless steel. Final suitability depends on the complete process conditions and the selected valve trim.
What information is needed for selection?
Provide the size, pressure rating, medium composition, concentration, temperature, connection standard, operating method and required quantity.
Send the process datasheet to WDL for material review, dimensional confirmation and quotation.
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