Methods and apparatus of testing a solenoid valve of an emergency valve via a positioner

An apparatus comprising:

• a solenoid valve in fluid communication with a pressure chamber of an actuator, the actuator being operatively coupled to an emergency valve, the solenoid valve having a first state and a second state;
• and
• a valve positioner to conduct a solenoid valve test of the solenoid valve without actuating the emergency valve during the solenoid valve test, the valve positioner, as part of the solenoid valve test, to:
• initiate a pulse duration and a monitoring duration for the solenoid valve test;
• instruct the solenoid valve to transition from the first state to the second state during the pulse duration;
• and
• determine a functionality of the solenoid valve by measuring a maximum pressure change of the pressure chamber of the actuator during the monitoring duration;
• wherein the valve positioner is to conduct a partial stroke test of the emergency valve following completion of the solenoid valve test and in response to the valve positioner determining that the solenoid valve is in a functioning state.

An apparatus comprising:

• means for actuating an actuator, the means for actuating the actuator being in fluid communication with a pressure chamber of the actuator, the actuator being operatively coupled to an emergency valve, the means for actuating the actuator having a first state and a second state;
• and
• means for positioning, the means for positioning to conduct a solenoid valve test of the means for actuating the actuator without actuating the emergency valve during the solenoid valve test, the means for positioning, as part of the solenoid valve test, to:
• initiate a pulse duration and a monitoring duration for the solenoid valve test
• instruct the means for actuating the actuator to transition from the first state to the second state during the pulse duration;
• and
• determine a functionality of the means for actuating the actuator by measuring a maximum pressure change of the pressure chamber of the actuator during the monitoring duration;
• wherein the means for positioning is to further conduct a partial stroke test of the emergency valve following completion of the solenoid valve test and in response to the means for positioning determining that the means for actuating the actuator is in a functioning state.

A method comprising:

• conducting a solenoid valve test by:
• initiating, by executing first instructions via a processor, a pulse duration and a monitoring duration for the solenoid valve test;
• instructing, by executing second instructions via the processor, a solenoid valve to transition from a first state to a second state during the pulse duration;
• and
• determining, by executing third instructions via the processor, a functionality of the solenoid valve by measuring, via a valve positioner, a maximum pressure change of a pressure chamber of the actuator during the monitoring duration;
• upon determining the solenoid valve is in a functioning state, conducting, by executing fourth instructions via the processor, a partial stroke test of the emergency valve via the valve positioner;
• and
• upon determining the solenoid valve is in an error state, conducting, by executing fifth instructions via the processor, a partial stroke test of the emergency valve via the valve positioner.