Method for determining a correction valve for a regulating device for a regulating valve

A method for determining a correction value for a regulating device for a regulating valve, wherein the regulating valve regulates a fluid flow through a chamber, the method comprising:

• a) placing a shut-off element of the regulating valve in mutually different positions relative to a throughflow opening for a fluid by an actuator of the regulating valve using the regulating device;
• b) providing an encoder, wherein each position of the shut-off element corresponds to an encoder value of the encoder;
• c) measuring a pressure value with a pressure sensor in mutually different positions of the shut-off element;
• d) identifying a position of the shut-off element at which a maximum of the pressure values is measured as a minimum throughflow position of the shut-off element;
• and
• e) determining the correction value from the encoder value at which the minimum throughflow position is identified;
• and
• performing steps a)-d) a first time in which the fluid passes through the positions of the shut-off element in a first direction, and determining a first correction value at which the minimum throughflow position is identified for the first time, and performing steps a)-d) a second time in which the fluid passes through the positions of the shut-off element in a second direction, opposite to the first direction, and determining a second correction value at which the minimum throughflow position is identified for the second time, and step e) includes determining the correction value based on the first correction value and the second correction value.

A method for determining a correction value for a regulating device for a regulating valve, wherein the regulating valve regulates a fluid flow through a chamber, the method comprising:

• a) placing a shut-off element of the regulating valve in mutually different positions relative to a throughflow opening for a fluid by an actuator of the regulating valve using the regulating device;
• b) providing an encoder, wherein each position of the shut-off element corresponds to an encoder value of the encoder;
• c) measuring a pressure value with a pressure sensor in mutually different positions of the shut-off element;
• d) identifying a position of the shut-off element at which a maximum of the pressure values is measured as a minimum throughflow position of the shut-off element;
• and
• e) determining the correction value from the encoder value at which the minimum throughflow position is identified;
• wherein the regulating valve has a starting position and the shut-off element is placed, starting from the starting position of the shut-off element, in mutually different positions relative to the throughflow opening for the fluid flow for performing the method, and the starting position is specified by a limit stop.