Patent ID: 9109721
Filing Date: 2015-08-18
Classification: B01D,C02F,E03B,F16K

Abstract:
1. An apparatus for connecting a pressure vessel containing means for filtering and/or conditioning and/or purifying water to a water distribution system and for providing water boiler expansion pressure relief to avoid a risk of scalding hot water flowing from a faucet positioned along the water distribution system, comprising a body having a first passageway extending through it, the body having an inlet port formed at an inlet end portion of the first passageway of the body, the body having an outlet port formed at an outlet end portion of the first passageway of the body, and the body being adapted to be connected to a water transmission line for distributing water from a water supply tank to a pressure vessel when the pressure vessel is connected to the body, the pressure vessel containing means for filtering and/or conditioning and/or purifying water, the body being adapted to be connected to the water transmission line at the inlet port formed at the inlet end portion of the first passageway of the body, and the body being adapted to be connected to an inlet port of the pressure vessel at the outlet port formed at the outlet end portion of the first passageway of the body, the body having a second passageway extending through it, the body having an inlet port formed at an inlet end portion of the second passageway of the body, the body having an outlet port formed at an outlet end portion of the second passageway of the body, and the body being adapted to be connected to a water receiving line for receiving water that has been filtered and/or conditioned and/or purified in the pressure vessel when the pressure vessel is connected to the body, the body being adapted to be connected to an outlet port of the pressure vessel at the inlet port formed at the inlet end portion of the second passageway of the body, the body being adapted to be connected to the water receiving line at the outlet port formed at the outlet end portion of the second passageway of the body, and the water receiving line being adapted to be connected to a water boiler, a first valve positioned in the first passageway of the body for blocking flow of fluid through the first passageway from the inlet port of the first passageway of the body when the valve is closed, a second valve positioned in the second passageway of the body for blocking backflow of water from the second passageway of the body to the inlet port at the inlet end portion of the second passageway of the body when the pressure vessel is not connected to the interface, the body having a third passageway extending from the second passageway downstream of the second valve to the first passageway, and third valve means positioned in the third passageway of the body for blocking flow of water through the third passageway from the first passageway to the second passageway and, if water boiler expansion pressure builds up to a dangerous level due to a water boiler connected to the water receiving line overheating, for permitting such water boiler expansion pressure that moves into the third passageway from the second passageway to open the third valve means and to be directed from the second passageway downstream of the second valve via the third passageway to the first passageway and then from the inlet port formed at the inlet end portion of the first passageway of the body to the water transmission line and back towards the water supply tank, the third valve means being a check valve.