Fluid control valve and assembly

摘要

A concentric cartridge for fluid mixing valve includes an inlet adapter configured to receive a first fluid and a second fluid, a pressure balance unit, a volume control plate rotatably coupled to the pressure balance unit and positioned between the inlet adapter and the pressure balance unit, a temperature control plate, and a mixing plate positioned between the pressure balance unit and the temperature control plate. The pressure balance unit and the volume control plate are rotatable relative to the inlet adapter and the temperature control plate is rotatable relative to the mixing plate. The mixing plate has an irregularly shaped opening configured to mix fluids with different temperatures such that the temperature of the mixed fluid increases linearly as a function of angular rotation of a temperature control handle.

主权项

1. A concentric cartridge for a fluid mixing valve, the cartridge comprising:
a stationary housing; an inlet adapter configured to receive a first fluid and a second fluid; a pressure balance unit; a volume control plate configured to rotate with the pressure balance unit and positioned between the inlet adapter and the pressure balance unit; a temperature control plate; and a mixing plate positioned between the pressure balance unit and the temperature control plate, wherein the mixing plate is fixed to the stationary housing such that the mixing plate remains substantially stationary; wherein the pressure balance unit and the volume control plate are rotatable relative to the inlet adapter to control a volume of the first and second fluids permitted to enter the pressure balance unit; and wherein the temperature control plate is rotatable relative to the stationary mixing plate and comprises covers configured to cover and uncover openings in the mixing plate to control relative amounts of the first and second fluids permitted to pass through the openings; wherein the temperature control plate and the pressure balance unit rotate independently from each other relative to the stationary housing such that:
the temperature control plate remains substantially stationary relative to the stationary housing as the pressure balance unit is rotated relative to the stationary housing, andthe pressure balance unit remains substantially stationary relative to the stationary housing as the temperature control plate is rotated relative to the stationary housing.