Pressure reduction systems and methods

A method of operating a pressure relief system, comprising:

• receiving fluid from a sensing location that corresponds to an inlet pressure of a main valve;
• directing the fluid through a pressure reduction assembly arranged between the sensing location and a pilot valve, the pressure reduction assembly including:
• a first flow path extending between an inlet and an outlet of the pressure reduction assembly;
• and
• a second flow path that diverges from the first flow path at a first end and rejoins the first flow path at a second end;
• generating turbulence within the first flow path by directing fluid from the second flow path into the first flow path in a flow direction opposed to fluid flow in the first flow path to reduce a magnitude of pressure spikes in the fluid at the sensing location;
• and
• flowing the fluid with reduced pressure spikes from the reduction assembly to a pilot valve that controls operation of the main valve.

A pressure reduction assembly for a pressure relief system, comprising:

• a housing defining an internal volume;
• an inlet insert secured within the internal volume and defining an inlet opening;
• a spool cap arranged within the internal volume and defining an outlet opening;
• and
• a dual-sided spool positioned within the internal volume between the inlet insert and the spool cap, the dual-sided spool including:
• a first side defining a first flow channel with a first flow path and a second flow path that diverges from the first flow path at a first end of the second flow path, and that directs fluid from the second flow path into the first flow path at a second end of the second flow path in a flow direction opposed to fluid flow in the first flow path, to generate turbulence within the first flow path to reduce a magnitude of pressure spikes in fluid flowing from the inlet opening to the outlet opening;
• and
• a second side defining a second flow channel in communication with the first flow channel.