Frese STBV FODRV Manual Balancing Valve DN15 Kvs 2.21
Frese STBV Range, Fixed Orifice Double Regulating Valve FODRV
The Frese FODRV is ideally suited for use in heating and cooling applications for the balancing and accurate verifcation of ﬂow in various sections of the system. The Frese FODRV balancing valve ensures simple and reliable verifcation of the system and can be installed in both variable ﬂow systems and constant ﬂow systems.
The double regulating valve feature allows the valve to be set to the required position and locked thus limiting the opening of the valve. If required, the valve can then be isolated by
turning the hand wheel to set point 0.0 and reopened to the previous set point. The integral fxed orifce, which has a fxed dimension and geometry, induces a diﬀerence in pressure for ﬂow measurement.