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Control Valves
Auto Pump Re-Circ / Min Flow

Auto Pump Re-Circ / Min Flow

Here you can learn about how automatic pump re‑circulation valves work, their key advantages, technical specifications, and typical industry uses - and browse our full range of products.

How does automatic pump recirculation / minimum flow work? 
An automatic recirculation valve (ARV) protects centrifugal pumps from damage at low‑flow conditions. When main flow drops below a set minimum, the valve automatically opens a bypass line to recirculate flow back to the source or tank, maintaining minimum safe flow.
Advantages of automatic pump recirculation / minimum flow...
• Protects pump from overheating & cavitation
• Fully automatic, no external control needed
• Ensures minimum safe operating flow
• Reduces pump maintenance and downtime
• Compact, single‑valve solution
Technical Parameters:
Pressure Ratings
PN16, PN25, PN40, PN63, PN100, CL150, CL300, CL600, CL900, CL1500
Temperature Range
Typically –29 °C to +425 °C; high‑temp designs up to +500 °C
Size Range
DN25–DN400 (1″–16″)
Materials
Carbon steel, stainless steel, duplex, super duplex
Industry Application:
Nuclear
Oil & Gas
Power
Media Type:
Water
Oil
Chemicals

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