Modular system and manifolds for introducing fluids into a well

A system, comprising:

• a frac fluid inlet manifold;
• a first modular manifold, comprising:
• a first low-pressure manifold comprising a first frac fluid outlet valve, wherein a fracturing fluid is adapted to be supplied from said first low-pressure manifold via said first frac fluid outlet valve to a suction side of a first frac pump that is in fluid communication with said first modular manifold;
• and
• a first high-pressure manifold comprising a first frac fluid inlet valve, wherein said first high-pressure manifold is adapted to receive, via said first frac fluid inlet valve, a fracturing fluid discharged from said first frac pump;
• a second modular manifold operatively coupled to said first modular manifold, comprising:
• a second low-pressure manifold comprising a second frac fluid outlet valve, wherein a fracturing fluid is adapted to be supplied from said second low-pressure manifold via said second frac fluid outlet valve to a suction side of a second frac pump that is in fluid communication with said second modular manifold;
• and
• a second high-pressure manifold comprising a second frac fluid inlet valve, wherein said second high-pressure manifold is adapted to receive, via said second frac fluid inlet valve, a fracturing fluid discharged from said second frac pump;
• a first dedicated low-pressure flow line coupled between the frac fluid inlet manifold and the first low-pressure manifold;
• and
• a second dedicated low-pressure flow line coupled between the frac fluid inlet manifold and the second low-pressure manifold.