How to check the pressure loading capacity of the pipe?
The greatest pressure of the pipe system should be lower than the pressure loading capacity of the pipe. If the static of borehole backfill material (grouting) is not included, the max pressure on the pipe is equal to the sum of atmospheric pressure, gravity static pressure and half of pump head. Thereinto: P–max pipe pressure , Pa P0–local atmospheric pressure, Pa ρ–the density of flow in the underground pipe, kg/m3 g–gravity acceleration , m/s2 h–the height difference between the lowest point of underground pipe and the highest of the close cycle , m ph–head of pump, Pa The result of P should not over the PN value of the pipe ,otherwise make a new calculation.
