Exclusively to be used with fluids

The safety valves of the series 4000 have been designed and are made exclusively to be used with fluids in the liquid state.
They are therefore characterized by the absence of the blowdown ring and by the proportional lift that is the solution, with respect to the reliability, to protect equipment characterized by periodic peaks of pressure

The most frequent use is therefore as safety valve for piston metering pumps, single or multiple head.

* Zoekterm: veerveiligheden, safety valves, Technical