The three-way regulating valve Danfoss VF3

Characteristics of three-way control valve Danfoss VF3: nominal sizes: DN = 15-150 mm; nominal pressure: PN = 16 bar; Adjustable medium: water or 50% aqueous solution of glycol; Bandwidth: Kvs = 0,63-320 m3/h; the connection to the pipe: flange; Temperature controlled environment: 2 (-10)*-150 °C (130 °C for combination valve VF3 c actuator AMV(E)435; 2 (-10)*-200 °With - VF3 Do = 125-150 mm)

* (At a temperature of from -10 to 2 °C requires a heater rod).

The saddle valve Danfoss VF3 for use with actuators: - AMV(E) 435 - DN = 15-80 mm (up to 130 °C) - AMV(E) 438SU Do = 15-50 mm - AMV(E) 85 and AMV(E) 86 Do = 125-150 mm - AMV and AMV 423 523 Do = 100 mm

Standards: EU Directive for equipment operating under pressure, 97/23/EC.

Installation of valve Danfoss VF3 Before assembling the necessary flushing of the pipeline system, to place the connecting elements of the pipeline and valve on one axis, to protect the valve from stress from the pipeline. You also need to ensure that the direction of movement of the controlled environment coincided with the direction indicated on the body: it is always from the input (flow valve) or from inputs a and b (for three-way valves) to the output of AB.

The position of the valve Danfoss VF3 Valve can be installed in any position except the drive down. It is necessary to provide clearance around the valve with actuator for dismantling and maintenance. The valve and actuator are not permitted to place in hazardous areas. The ambient temperature during installation and operation of the valve must be in the range of 2-50 °C., the Actuator can be rotated around the axis of the valve stem in an easy to service position (360°), then it should be fixed on the valve retaining screws.

The flow valve Three-way valve may be used only for mixing flows, i.e., must have two inputs and one output. To separate the flow valve should be installed in the return pipe. When installing the pump directly in front of the entrance nozzle valve And the possible occurrence of water hammer and, as a consequence, the overload of the drive.