Integrated fluid control valve and valve actuator assembly

An assembly, comprising:

• a pressure operated fluid control valve having an inlet and an outlet disposed along a flow axis for controlling a flow of fluid from a fluid supply piping system into a sprinkler piping system upon transition of a fire protection system from a stand-by state to an actuated state, the control valve having a valve housing defining a valve chamber for holding the pressurized fluid to prevent the flow of the fluid through the control valve;
• and
• a valve actuator including,
• an actuator housing having an interior surface defining an internal chamber with a central axis,
• a first actuator seat disposed along the interior surface of the actuator housing circumscribed about the central axis,
• a second actuator seat disposed along the interior surface and circumscribed about the first actuator seat,
• a sealing member defining a sealed position, in which the sealing member is engaged with the first actuator seat and the second actuator seat, the sealing member further defining an open position, in which the sealing member is axially spaced from the first and second actuator seats,
• a first port proximate the first actuator seat in communication with the internal chamber and the valve chamber of the control valve,
• a second port in communication with the internal chamber for providing fluid communication with an automatic control device and a manual release device,
• a third port for providing fluid communication with a drain line, the third port being in communication with the internal chamber, the third port being isolated from the first and second ports when the sealing member is in the sealed position, the third port being in fluid communication with the first and second ports when the sealing member is in the open position, and
• a fourth port for providing fluid communication with the fluid supply piping system, the fourth port being in communication with the first port and in communication with the internal chamber, the fourth port being isolated from the third port when the sealing member is in the sealed position, the fourth port being in fluid communication with the third port when the sealing member is in the open position.