Over-Pressurisation Caused By Low Pressure Isolation; Over-Pressurisation Caused By The High Pressure Pump - Danfoss iSave 21 User Manual

User manual
20
iSave 21

5.14 Over-pressurisation caused by low pressure isolation

If the low-pressure side of the iSave is blocked and the iSave is exposed to high-pressure,
there is a risk that the iSave or the LP piping could be damaged by over-pressurisation.
To prevent such over-pressurisation, appropriate relief valves should be used and proce-
dures should be implemented to assure that the HP of the iSave is depressurised prior to
the isolation of the LP side.

5.15 Over-pressurisation caused by the high pressure pump.

The HP pump may be able to generate a pressure higher than the maximum allowable
pressure for the iSave or the system – particularly if the HP pump is a positive displacement
pump, the pump will be able to generate extremely high levels of pressure.
To prevent such over-pressurisation, appropriate relief valves should be used and pro-
cedures should be implemented to assure that the HP of the iSave is protected against
excess pressure.
180R9221 / 521B1174 / DKCFN.PS.003.A1.02