Does this tube meet the requirements?
Thread Content
Given: The pipe pressure is 0.4 MPa, with a DN of 100. This pipe is intended for supplying industrial water and fire-fighting water to the system; the flow rate of the fire-fighting water is 30 L/s, while the amount of industrial water required is 13,700 tons. Does this pipe (P=0.4 MPa, DN=100) meet the requirements for use in this system?
Personally, I think it can be used; I estimate that a working pressure of around 10 KPa is sufficient for this flow rate
Is the pipe pressure 0.4 MPa? I don’t understand what it means. Is it the maximum operating pressure? This pressure seems a bit low!
Fire water usually uses 0.6 MPa; I’m afraid such pipes won’t work
Process unit areas and tank farms in petrochemical enterprises shall be equipped with independent fire protection water supply systems under stable high pressure, with a pressure of 0.7 to 1.2 MPa being appropriate. When low-pressure fire water supply systems are used in other locations, the pressure must ensure that the water pressure at the most unfavorable fire hydrant during firefighting is not less than 0.15 MPa (measured from the ground level). The low-pressure fire water supply system should not be combined with the circulating cooling water system. So it seems that the pressure for chemical plant fire fighting is a bit low.