US 12,467,554 B2
Controlling an actuator on a valve
Kyle McKinley Bryan, Jacksonville, FL (US)
Assigned to Dresser, LLC, Houston, TX (US)
Filed by Dresser, LLC, Houston, TX (US)
Filed on Aug. 1, 2022, as Appl. No. 17/878,429.
Prior Publication US 2024/0035589 A1, Feb. 1, 2024
Int. Cl. F16K 37/00 (2006.01); F16K 31/42 (2006.01)
CPC F16K 37/0033 (2013.01) [F16K 31/42 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A valve assembly, comprising:
an actuator comprising a pneumatic cylinder;
a shaft coupled with the actuator;
a valve coupled with the shaft; and
an actuator control system comprising:
a controller with a first explosion-proof housing;
a non-contact sensor disposed inside of the first explosion-proof housing and in proximity to an end of the shaft,
a junction box with a second explosion-proof housing
a pair of solenoid valves coupled to both the second explosion-proof housing and the pneumatic cylinder,
wherein the actuator control system configured to transfer a signal from the first explosion-proof housing to the second explosion-proof housing, and
wherein the signal changes a state of each of the pair of solenoid valves that results in a change in position of the valve by pressurizing a first side of the pneumatic cylinder and depressurizing a second side of the pneumatic cylinder.