Boiler fill valve with regulated fast-fill

A pressure regulator assembly having a normal mode and a regulated fast-fill mode comprising:

• a spring cage;
• a body coupled to the spring cage and defining an inlet in fluid communication with an outlet, wherein the spring cage and the body define an interior;
• a spring washer assembly mounted to the spring cage;
• a push rod slidably mounted in the spring washer assembly;
• a seat assembly mounted in the interior for selectively closing a flowpath between the inlet and the outlet;
• a lever rotatably coupled to the spring cage between a normal mode position and a regulated fast-fill mode position;
• and
• a preload spring extending between the spring washer assembly and the seat assembly;
• wherein:
• when the lever is in the normal mode position, the lever does not engage the preload spring, and compression of the preload spring between the spring washer assembly and the seat assembly produces a first force upon the seat assembly to:
• selectively close the flowpath if a downstream pressure is above a first pressure setting;
• and allow regulated through the flowpath if the downstream pressure is below a first pressure setting;
• and
• when the lever is in the fast-fill mode position, the lever engages the preload spring so that the preload spring is further compressed by the circular portion to produce a second force upon the seat assembly to selectively open the flowpath for regulated flow if a downstream pressure is below a second pressure setting, the first pressure setting being lower than the second pressure setting.

A pressure regulator assembly comprising:

• a spring cage housing assembly defining an inlet in fluid communication with an outlet;
• a diaphragm assembly mounted in the spring cage housing assembly for selectively closing a flowpath between the inlet and the outlet;
• actuation means including a washer assembly mounted in the spring cage housing assembly, a push rod slidably mounted to the washer assembly, and a lever rotatably coupled to the spring cage housing assembly for selectively pushing the push rod;
• and
• a preload spring extending between the actuation means and the diaphragm assembly;
• wherein:
• when the actuation means are in a normal mode position, the preload spring produces a first force upon the diaphragm assembly to:
• selectively close the flowpath if a downstream pressure is above a first pressure setting;
• and allow regulated through the flowpath if the downstream pressure is below a first pressure setting, wherein the first force is produced by compression of the preload spring between the spring cage housing assembly and the diaphragm assembly;
• and
• when the actuation means is in a fast-fill mode position, the lever pushes the push rod so that the preload spring is further compressed between the washer assembly and the diaphragm assembly to produce a second force upon the diaphragm assembly to selectively open the flowpath for regulated flow if the downstream pressure is below a second pressure setting, the first pressure setting being lower than the second pressure setting.