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519006

Caleffi Adjustable differential pressure by-pass valve

519 series Adjustable differential pressure by-pass valve

The adjustable differential pressure by-pass valve ensures the head pressure of the pump is proportional to the number of two-way on/off, modulating or thermostatic valves being closed in the secondary circuit, preventing pump overheating and excessive fluid velocity.

Factory Direct
58.75 58.75

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  • Connections
  • Manufacturer
  • Max Working Pressure
  • Max Operating Temperature
  • By-pass differential pressure setting range
Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days
Connections: 1” male x 1” male (straight)
Manufacturer: Watts
Max Working Pressure: 145 psi (10 bar)
Max Operating Temperature: 212°F (100°C)
By-pass differential pressure setting range: 0.3 - 4.3 psi (2 - 30 kPa)

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