Abstract: A mixer tap for a shower has a body 1, with a cold water pipe connection 2, a hot water pipe connection 3 and a mixed water outlet connection 4. A flow control knob 5 and a water temperature control knob 6 are provided at the front of the tap. The tap has a flow mixer cartridge 11, which is sealed in a cavity 12 in the body. The collar has three sealing grooves 15,16,17 carrying O-rings 115,116,117. To one side, of the oblique groove 16, the collar has a cold water port 22; whilst to the other side it has a hot water port 23. These ports are in communication with the cold and hot water connections 2,3 in the body. The connections are able to be axially aligned with each other, since the ports 22,23 are offset and isolated from each other by the oblique seal.

Abstract: A flow mixer shuttle having first and second annular rims for controlling the flow of hot and cold water, a central hub connected to the rims, a seat on the hub for supporting a thermostatic capsule for controlling the position of the shuttle to control the flow of hot and cold water, and a flow directing sleeve for directing mixer flow to the flange end of the capsule. A flow mixer incorporating the shuttle is also described, as is a single control flow mixer.