VS 2 is two-way valve designed to work with Danfoss electric actuators AMV 150, AMV(E) 10, AMV(E) 20, AMV(E) 30 or Danfoss electric actuators with spring return function AMV(E) 13, AMV(E) 23 and AMV(E) 33. VS 2 valve is generally recommended for use in most demanding conditions in systems such as: district heating, heating, hot water service with heat exchanger or storage tank, where they ensure long and unproblematic performance.