Variable pressure regulators and associated methods

A variable pressure regulator comprising a portion of a sprinkler, the variable pressure regulator having a first dimension and a second dimension, the first dimension being perpendicular to the second dimension, the variable pressure regulator comprising:

• a pressure regulator housing;
• a pressure regulator assembly disposed within the pressure regulator housing, the pressure regulator assembly comprising a piston and a piston seat, the piston being movable along the first dimension when the variable pressure regulator is in an operational state, the piston being biased by a regulator spring;
• the piston seat comprising a floor, the floor comprising a proximal region;
• the piston comprising a proximal end and a distal end, the proximal end being closer to the floor of the piston seat than the distal end along the first dimension, the proximal region of the floor comprising that region of the floor closest to the proximal end of the piston along the first dimension;
• and
• the pressure regulator assembly further comprising an adjustment mechanism shaped and arranged to alter a resting distance, wherein the resting distance comprises a distance along the first dimension intermediate the proximal end of the piston and the proximal region of the floor when the pressure regulator is in a resting state.

A variable pressure regulator comprising a portion of a sprinkler, the variable pressure regulator having a first dimension and a second dimension, the first dimension being perpendicular to the second dimension, the variable pressure regulator comprising:

• a pressure regulator housing;
• a pressure regulator assembly disposed within the pressure regulator housing, the pressure regulator assembly comprising a piston and a piston seat, the piston being movable along the first dimension when the variable pressure regulator is in an operational state;
• the piston seat comprising a floor, the floor comprising a proximal region, the piston being biased by a regulator spring;
• the piston comprising a proximal end and a distal end, the proximal end being closer to the floor of the piston seat than the distal end along the first dimension, the proximal region of the floor comprising that region of the floor closest to the proximal end of the piston along the first dimension;
• and
• the pressure regulator assembly further comprising an adjustment mechanism shaped and arranged to alter a resting distance, wherein the resting distance comprises a distance along the first dimension intermediate the proximal end of the piston and the proximal region of the floor when the pressure regulator is in a resting state, wherein the adjustment mechanism is selected from a group consisting of a threaded adjustment mechanism and a snap-fit adjustment mechanism.