You have the option of installing an overpressure or negative pressure monitoring device for our double-walled pipes – depending on the product, medium, operating pressure and legal requirements.
There are two separate differential pressure leakage indicators:
Leakage monitoring device for indicating leakages in interstitial spaces of double-walled pipes in line with the
a) Negative pressure principle (e.g. VR410/E)
b) Overpressure principle (e.g. DLR-G 6)