US 2021/0372095 A1 · BOOSTER PUMP AND BACKFLOW PREVENTER

Abstract

Methods and systems of providing domestic water service to a commercial/residential building via a water booster pump assembly are disclosed herein. In some embodiments, the water booster pump assembly includes first and second water pipe branch circuits. In some embodiments, each water pipe branch circuit is configured with a backflow preventer and the water pipe branch circuits are fluidly coupled to one another in parallel. In some embodiments, the water pipe branch circuits are further coupled to one another via a crossover branch pipe configured to allow continuous flow through the two backflow preventers. Each water pipe branch circuit may include a pump. The crossover branch allows water to flow through both backflow preventers, even when one pump is inoperative.

Claims28

Dependent claims

A water booster pump apparatus comprising:

a water inlet pipe;
a water outlet pipe;
a first water pipe branch circuit fluidly coupled to the water inlet pipe and the water outlet pipe, the first water pipe branch circuit including, in series, a first backflow preventer and a first booster pump;
a second water pipe branch circuit fluidly coupled to the water inlet pipe, the second water pipe branch circuit including, in series, a second backflow preventer and a second booster pump;
the first and second water pipe branch circuits being arranged in parallel with each other and each disposed between the water inlet pipe and the water outlet pipe;
and
a crossover branch fluidly coupling the first and second branch circuits at a position downstream of the first and second backflow preventers and upstream of the first and second booster pumps.

4 more elements

Dependencies are inferred from the claim text.

Booster pump and backflow preventer

Life of this patent

Booster pump and backflow preventer

Life of this patent

Abstract

Claims28