Valve flanged PV

The PV Compact differential pressure valve is used in secondary heating and cooling systems. PV Compact maintains differential pressure across a circuit such as a stem supplying radiators or to secure differential pressure across a control valve so that good authority is obtained for modulating regulation. The differential pressure that is maintained can be adjusted to achieve the prescribed flow. At increased available pressure, the differential pressure valve closes and vice versa at reduced pressure, the differential pressure valve opens. PV Compact is conveniently combined with the STV valve.