Application: for use in drinking water sector (other on request)
DN: 1 1/2" - 2" PN16
DN200 - DN300 PN10
DN40 - DN300 PN16
The hydraulically controlled pipe-break safety valve monitors the volume flow rate via the differential pressure measuring orifice (8). In case of a pipe burst the volume flow rate is increased, the pressure difference at the differential pressure measuring orifice (8) gets higher. The pipe-break safety pilot valve (5) is changed over and the base valve is closed. Via the throttle check valve (4) the valve closing rate can be adjusted.
Minimum inlet pressure: 1 bar (Please consider: pressure loss due to main valve and orifice approx. 0.5 bar)
Make sure to allow for flow calming sections upstream of the orifice plate(x = 5 x DN) and between the orifice plate and the main valve (y = 3 x DN!
For rating, please specify the following:
- Max. admissible flow rate
- Inlet pressure (P1 side)
- Outlet pressure (P2 side)