height of water column vs pressure

arendvs · #1 Dec 11, 2007, 11:22 PM

In an apartment block of 5 floors water is fed from tanks(reservoirs) at the top. What approximately is the pressure in bars versus the height in metres? None of the hot water cylinders have pressure reducing valves fitted.

caibuadday · Dec 12, 2007, 04:16 PM

Quote:

Originally Posted by arendvs

In an apartment block of 5 floors water is fed from tanks(reservoirs) at the top. What approximately is the pressure in bars versus the height in metres? None of the hot water cylinders have pressure reducing valves fitted.

assumed total height is 15.25 M(50ft); 50 x 0.433= 21.7, 21.7 + 14.7 =36.4, 36.4/ 14.7= 2.48 bars........ a water column at 1 ft H would have the pressure of 0.433 psig or 15.1 psia



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