Hastelloy Check Valve
WDL Hastelloy Check Valve provides automatic prevention of reverse flow for mixed-acid chemical processing and wet chlorine and hypochlorite systems. Connections, trim and operation are selected to the project conditions.
Description
Hastelloy Check Valve
WDL Hastelloy Check Valve provides automatic prevention of reverse flow for process systems that need corrosion resistance in mixed-acid and chloride-bearing process media. Hastelloy alloys are selected for chemical streams that combine chlorides with reducing or oxidizing conditions.
Design Options
| Item | Available specification |
|---|---|
| Material | Hastelloy C-276, C-22 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
- Mixed-acid chemical processing
- Wet chlorine and hypochlorite systems
- Fertilizer and pulp bleaching lines
- Pump discharge protection
- Backflow prevention in process lines
Selection Notes
Confirm the acid concentration, chloride content, temperature and contaminants before choosing C-276, C-22 or another Hastelloy grade.
Confirm installation direction, minimum flow, cracking pressure, slam risk and allowable pressure drop.
Frequently Asked Questions
Why select Hastelloy Alloy for this check valve?
Hastelloy alloys are selected for chemical streams that combine chlorides with reducing or oxidizing conditions. 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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