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.
Item Details
| Connections | 1” male x 1” male (straight) |
| Max. operating 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) |
