Venting and/or bleeding valve

A venting and/or bleeding valve comprising:

• a valve housing;
• a main valve arranged in the valve housing for venting and bleeding of a piping connected to the valve housing, the main valve having a valve body and a valve seat;
• a float arranged within the valve housing;
• a guide rod connected to the valve body, the guide rod having a venting bore with a first end opening on a first side of the valve body and a second end opening on a second side of the valve body;
• a guide sleeve connected to the valve housing, the guide rod axially movable within the guide sleeve;
• an auxiliary valve arranged in the valve housing for operating ventilation of the piping at operating pressure, the auxiliary valve formed by a sealing disk and the venting bore;
• a valve position sensor for acquisition of the position of at least one of the main valve and the auxiliary valve, the valve position sensor operatively associated with the guide sleeve and guide rod;
• a pressure and temperature sensor for acquisition of both humidity and pressure in an interior space of the valve housing;
• and
• an evaluation unit configured to determine an operating state and operating malfunctions of the venting and/or bleeding valve as a function of the values acquired by the valve position sensor and the pressure and temperature sensor,
• wherein the float controls both the main valve and the auxiliary valve as a function of a filling level of a fluid located in the valve housing, and
• the evaluation unit is configured to determine whether the venting and/or bleeding valve is working properly or there is an operating malfunction on the basis of a combination of the values acquired by the valve position sensor and the pressure and temperature sensor.

A venting and/or bleeding valve comprising:

• a valve housing;
• a main valve arranged in the valve housing for rapid venting and bleeding of a piping connected to the valve housing;
• an auxiliary valve arranged in the valve housing for operating ventilation of the piping at operating pressure;
• a float arranged within the valve housing, the float controlling the main valve or both the main valve and the auxiliary valve as a function of a filling level of a fluid located in the valve housing;
• a valve position sensor for acquisition of the position of the main valve or of the auxiliary valve;
• at least one additional sensor for acquisition of at least the humidity and pressure in an interior space of the valve housing;
• and
• an evaluation unit configured to determine an operating state of the venting and/or bleeding valve on the basis of a combination of the values acquired by the valve position sensor and the at least one additional sensor,
• wherein the evaluation unit is configured to determine that the venting and/or bleeding valve is open and working properly when the valve position sensor detects the open position of the main valve while the at least one additional sensor detects neither pressure nor humidity,
• the evaluation unit is configured to determine that the venting and/or bleeding valve is closed and working properly when the valve position sensor detects the closed position of the main valve while the at least one additional sensor detects an operating pressure and detects humidity, and
• the evaluation unit is configured to determine that the venting and/or bleeding valve is ventilating the piping at operating pressure and working properly when the valve position sensor detects the closed position of the main valve while the at least one additional sensor detects an operating pressure and does not detect humidity.