System for regulating pressure differentials on a fluid

A system for regulating a pressure differential, the system comprising:

• a plurality of valving elements that work together to provide a desired flow rate or a desired pressure, each of the plurality of valving elements configured to selectively allow and restrict at least a portion of a flow of fluid between an inlet and a common outlet of a conduit through a respective opening and closing of each respective valving element;
• a valve activation system configured to supply a common driving pressure to the plurality of valving elements, the common driving pressure configured to:
• initiate at least one of the opening or closing of the plurality of valving elements, or
• initiate the other of the opening or closing of the plurality of valving elements;
• wherein the valve activation system is configured to:
• receive a first pressure and a second pressure, the first and second pressures received from locations in the conduit upstream of the plurality of valving elements,
• initiate at least one of the opening or closing of the plurality of valving elements when the pressure differential between the first pressure and the second pressure has decreased beyond a pre-defined threshold, and
• initiate the other of the opening or closing of the plurality of valving elements when the pressure differential between the first pressure and the second pressure has increased beyond a pre-defined threshold;
• and
• wherein the pre-defined threshold is a range of temperature differentials.

A system for regulating a pressure differential, the system comprising:

• a plurality of valving elements that work together to provide a desired flow rate or a desired pressure, each of the plurality of valving elements configured to selectively allow and restrict at least a portion of a flow of fluid between an inlet and a common outlet of a conduit through a respective opening and closing of each respective valving element;
• a valve activation system configured to supply a common driving pressure to the plurality of valving elements, the common driving pressure configured to:
• initiate at least one of the opening or closing of the plurality of valving elements, or
• initiate the other of the opening or closing of the plurality of valving elements;
• and
• wherein the valve activation system further comprises:
• a chamber configured to determine a pressure differential, the chamber divided into a first portion and second portion by a diaphragm, the first portion containing a biasing member and receiving a second pressure, the second portion receiving a first pressure, the second pressure and the biasing member providing a force on the diaphragm from a first side, and the first pressure proving a force on the diaphragm from a second side;
• a rod configured to move when the force from either the first side or the second side of the diaphragm is greater than the force from the other of the first side or the second side;
• and
• a fluid circuit mechanism connected to the rod and having more than one position for a connection of fluid lines, the fluid circuit mechanism moving to respective positions upon the rod moving, at least a first position of the fluid circuit mechanism connecting fluid lines to pressurize the common driving pressure, and at least a second position of the fluid circuit mechanism connecting fluid lines to depressurize the common driving pressure.