Nickel Check Valve
WDL Nickel Check Valve provides automatic prevention of reverse flow for caustic soda systems and alkali concentration equipment. Connections, trim and operation are selected to the project conditions.
Description
Nickel Check Valve
WDL Nickel Check Valve provides automatic prevention of reverse flow for process systems that need resistance in caustic alkali and selected reducing or neutral media. Commercially pure Nickel 200/201 is commonly selected for caustic alkali and controlled reducing or neutral environments.
Design Options
| Item | Available specification |
|---|---|
| Material | Nickel 200, Nickel 201 or project-specified nickel alloy |
| 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
- Caustic soda systems
- Alkali concentration equipment
- High-purity process lines
- Pump discharge protection
- Backflow prevention in process lines
Selection Notes
Nickel 201 is normally considered for higher-temperature exposure; oxidizing acids and sulfur-bearing media require another material review.
Confirm installation direction, minimum flow, cracking pressure, slam risk and allowable pressure drop.
Frequently Asked Questions
Why select Nickel 200/201 for this check valve?
Commercially pure Nickel 200/201 is commonly selected for caustic alkali and controlled reducing or neutral environments. 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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