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I live in the US now in Western NY but I've lived in Britain from the end of the sixties to the beginning of the eighties just up to MT arriving on the scene. Anyway, I recently bought from the amazon UK site a shower mixer tap that I fancied 'but' I've never seen one that had three water inlets. The pictures of this at the amazon site didn't have a 3D view, just the front, a single handle mixing tap with the hot and cold inlets on the top and the shower hose outlet on the bottom. I get that.
On the back however, is a third inlet that also has a flow or possibly pressure reducer that came with it. In the documentation its called a butterfly valve that adjust with a screwdriver. In the US all the water lines are pressured about the same for the hot and cold sides. The hot water side might be a few pascals higher but generally the expansion tank would compensate for that. Anyway the mains pressure is anywhere from 40 to 50psi at any given time (I have a gauge) The Stiebel Eltron docs only say that if your WH is larger than 30 liters in capacity (mine is 80 l ) then connect it to the back inlet (?) so..would that be a 'split' hot water supply because of volume(?) that doesn't seem logical. I know that this particular model was designed to be used with open hot water tank systems and cistern pressures, but it is also rated at 1 MPa. so I don't see a problem. Would you say then it's one hot line to the top and back and one cold to the other top inlet?. The tap moves in three directions so when pulled back as opposed to front and back, there is more volume, I assume because the mixing is all done with the front and back motion of the tap. When there is a demand for more volume that's when the back side opens up. If you want to see a picture of this it is a MED designated configuration for low pressure systems, model 232609.
Anyone know the reason for this back entry to the mixing tap? Is it just for more volume? Environmental regs now restrict shower heads to under two gallons a minute anyway, not so bad with plenty of pressure and temperature.
On the back however, is a third inlet that also has a flow or possibly pressure reducer that came with it. In the documentation its called a butterfly valve that adjust with a screwdriver. In the US all the water lines are pressured about the same for the hot and cold sides. The hot water side might be a few pascals higher but generally the expansion tank would compensate for that. Anyway the mains pressure is anywhere from 40 to 50psi at any given time (I have a gauge) The Stiebel Eltron docs only say that if your WH is larger than 30 liters in capacity (mine is 80 l ) then connect it to the back inlet (?) so..would that be a 'split' hot water supply because of volume(?) that doesn't seem logical. I know that this particular model was designed to be used with open hot water tank systems and cistern pressures, but it is also rated at 1 MPa. so I don't see a problem. Would you say then it's one hot line to the top and back and one cold to the other top inlet?. The tap moves in three directions so when pulled back as opposed to front and back, there is more volume, I assume because the mixing is all done with the front and back motion of the tap. When there is a demand for more volume that's when the back side opens up. If you want to see a picture of this it is a MED designated configuration for low pressure systems, model 232609.
Anyone know the reason for this back entry to the mixing tap? Is it just for more volume? Environmental regs now restrict shower heads to under two gallons a minute anyway, not so bad with plenty of pressure and temperature.
