Cooling Water service
Service Selection
Check Valves for Cooling Water Service
Which check valves configuration suits Cooling Water, in which material, to which standard — from real service data, with the pitfalls flagged.
Which check valves for Cooling Water?
Dual-plate wafer check valve - Non-return on cooling water pumps - compact, low pressure drop Typical service window: 1–16 bar, 10–50°C (open circuit); up to 90°C (closed loop).
Recommended Configurations
Dual-plate wafer check valve
Non-return on cooling water pumps - compact, low pressure drop
Body Material for Cooling Water
Rated from real compatibility data - click any material for the full decision page.
Governing Standards for Cooling Water Service
What to Avoid in Cooling Water Service
- Unlined cast iron valves in biocide-treated or chlorinated cooling water
- Bronze/brass valves where zinc dezincification is a risk (low pH, high flow)
- PTFE-seated ball valves where biofouling on ball seat is a risk
Service Considerations
- Velocity below 1 m/s in carbon steel - deposits and under-deposit corrosion
- Y-strainer mesh sizing: 3mm mesh for cooling tower water, 1mm before instruments
- Biofouling: full-bore ball valves allow easier pigging/flushing
- Legionella risk in open cooling towers - no dead-legs in cooling water design
Other valve types for Cooling Water
Check Valves for other services
Check Valves for High-Pressure SteamCheck Valves for Carbon Dioxide (CO₂)Check Valves for Diesel Fuel / Fuel OilCheck Valves for Methanol (Methyl Alcohol)Check Valves for Hot Oil (Thermal Heat Transfer Fluid)Check Valves for MEG / Glycol (Monoethylene Glycol - Gas Dehydration)Check Valves for Demineralised Water (DM Water / Deionised Water)Check Valves for Oxygen (O₂ - Industrial and Medical Grade)
Reviewed by Process Engineering, Vajra Industrial SolutionsDiscipline: Process & Fluid Service EngineeringLast reviewed: 20 June 2026
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