A float valve apparatus is provided for regulating the level of fluid within a tank. The apparatus may include a housing having one or more inlet ports and an outlet port that are each fluidly connected via a channel disposed within the housing. A float disposed within the housing may move relative
A float valve apparatus is provided for regulating the level of fluid within a tank. The apparatus may include a housing having one or more inlet ports and an outlet port that are each fluidly connected via a channel disposed within the housing. A float disposed within the housing may move relative to the housing between a first position and a second position when a fluid level in the tank reaches a preset level. A shaft may extend from the float into a chamber, and as the float moves from the first position to the second position, fluid may enter a chamber and bias the float further upward. In some examples, the shaft is further configured to increasingly obstruct the flow of fluid in the channel as the float moves from the first position to the second position.
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1. A float valve apparatus for regulating the level of fluid within a tank, comprising: a housing comprising at least one inlet port and at least one outlet port, wherein the at least one inlet port and the at least one outlet port are fluidly connected via a channel disposed within the housing;a fl
1. A float valve apparatus for regulating the level of fluid within a tank, comprising: a housing comprising at least one inlet port and at least one outlet port, wherein the at least one inlet port and the at least one outlet port are fluidly connected via a channel disposed within the housing;a float disposed within the housing and configured to move relative to the housing between a first position and a second position;a shaft connected to the float comprising a distal end and a proximal end; anda chamber disposed within the housing fluidly connected to the channel and configured to receive the distal end of the shaft when the float is in the first position, wherein the presence of the distal end of the shaft in the chamber prevents fluid from entering the chamber from the channel when the float is in the first position, and wherein the chamber is further configured to receive fluid from the channel when the float is in the second position, wherein the chamber is configured to pressurize upon receiving fluid from the channel,wherein the proximal end of the shaft comprises a reduced cross-section portion located within the channel between the at least one outlet port and the at least one inlet port when the float is in the first position, thereby allowing fluid received at the one or more inlet port to exit the channel via the outlet port. 2. The apparatus of claim 1, wherein the distal end of the shaft comprises an increased cross-section portion that increasingly obstructs the flow of fluid in the channel as the float moves from the first position to the second position such that the distal end of the shaft substantially obstructs the flow of fluid in the channel when the float is in the second position. 3. The apparatus of claim 2, wherein the increased cross-section portion is located within the chamber when the float is in the first position and moves out of the chamber as the float moves from the first position to the second position such that fluid from the channel is allowed to enter the chamber. 4. The apparatus of claim 2, wherein the fluid from the channel that enters the chamber provides a force to the increased cross-section portion to assist the float in moving from the first position to the second position. 5. The apparatus of claim 1, wherein the housing comprises a first inlet port and a second inlet port, each fluidly connected with the channel. 6. The apparatus of claim 5, wherein the first inlet port is couplable with a flow control valve via a tube located exterior of the tank, and wherein the second inlet port is couplable with the flow control valve via a tube located within the tank. 7. The apparatus of claim 5, wherein the first inlet port is sealed when the second inlet port is fluidly coupled with a flow control valve, and the second inlet port is sealed when the first inlet port is fluidly coupled with the flow control valve. 8. The apparatus of claim 1, wherein the float moves from the first position to the second position when fluid within the tank reaches a predetermined level. 9. The apparatus of claim 1, wherein the at least one inlet port is configured to pressurize when the float moves from the first position to the second position, and thereby pressurize a tube coupled with a flow control valve to switch off a flow of fluid through the flow control valve. 10. A float valve apparatus for regulating the level of fluid within a tank, comprising: a housing comprising a channel disposed within the housing, the channel comprising at least one inlet port and at least one outlet port;a float disposed within the housing and configured to move relative to the housing between a first position and a second position in response to the level of fluid within the tank;a shaft connected to the float comprising a distal end and a proximal end, and configured to intersect the channel and partially obstruct the flow of fluid in the channel when the float is in the first position; anda chamber disposed within the housing fluidly connected to the channel and configured to receive the distal end of the shaft in the chamber such that fluid is prevented from entering the chamber from the channel when the float is in the first position, and wherein the chamber is further configured to receive fluid from the channel when the float is in the second position;wherein the shaft is further configured to increasingly obstruct the flow of fluid in the channel as the float moves from the first position to the second position such that the shaft completely obstructs the flow of fluid in the channel when the float is in the second position. 11. The apparatus of claim 10, wherein the shaft comprises a reduced cross-section portion located within the channel when the float is in the first position, thereby allowing fluid received at the one or more inlet ports to exit the channel via the outlet port. 12. The apparatus of claim 11, wherein the shaft further comprises an increased cross-section portion that increasingly obstructs the flow of fluid in the channel as the float moves from the first position to the second position. 13. The apparatus of claim 12, wherein the increased cross-section portion is located within the chamber when the float is in the first position and moves out of the chamber as the float moves from the first position to the second position such that fluid from the channel is allowed to enter the chamber. 14. The apparatus of claim 12, wherein the fluid from the channel that enters the chamber provides a force to the increased cross-section portion to assist the float in moving from the first position to the second position. 15. The apparatus of claim 10, wherein the housing comprises a first inlet port and a second inlet port, each fluidly connected with the channel. 16. The apparatus of claim 15, wherein the first inlet port is couplable with a flow control valve via a tube located exterior of the tank, and wherein the second inlet port is couplable with the flow control valve via a tube located within the tank. 17. The apparatus of claim 15, wherein the first inlet port is sealed when the second inlet port is fluidly coupled with a flow control valve, and the second inlet port is sealed when the first inlet port is fluidly coupled with the flow control valve. 18. The apparatus of claim 10, wherein the at least one inlet port is configured to pressurize when the float moves from the first position to the second position, and thereby pressurize a tube coupled with a flow control valve to switch off a flow of fluid through the flow control valve.
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