Zirconium Check Valve
WDL Zirconium Check Valve provides automatic prevention of reverse flow for acetic and formic acid processing and selected sulfuric acid systems. Connections, trim and operation are selected to the project conditions.
Description
Zirconium Check Valve
WDL Zirconium Check Valve provides automatic prevention of reverse flow for process systems that need resistance to many strong acids and corrosive chemical mixtures. Zirconium is used for severe acid duties where stainless steels and many nickel alloys cannot provide an acceptable corrosion rate.
Design Options
| Item | Available specification |
|---|---|
| Material | Zirconium 702, 705 or project-specified grade |
| Function | automatic prevention of reverse flow |
| Connections | Wafer, lugged, flanged or butt-welded |
| Operation | Self-actuated swing, lift, piston or dual-plate mechanism |
| Design basis | API 594, BS 1868, API 598 or project standard |
Typical Applications
- Acetic and formic acid processing
- Selected sulfuric acid systems
- Chemical reactors and transfer lines
- Pump discharge protection
- Backflow prevention in process lines
Selection Notes
Fluoride-containing media, hydrofluoric acid and some oxidizing halides require special review because they can attack zirconium.
Confirm installation direction, minimum flow, cracking pressure, slam risk and allowable pressure drop.
Frequently Asked Questions
Why select Zirconium for this check valve?
Zirconium is used for severe acid duties where stainless steels and many nickel alloys cannot provide an acceptable corrosion rate. 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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