How does the fire pump pressure meter work?
Fire pump pressure gauge pressure gauge is not seen, but there are 3 kinds of fire pipes, 1. fire pump outlet pipe pressure gauge (in the pipeline and pipeline pump lift check valve between the pump running only) to show the pressure value, to test the pump outlet pressure and pump running out of water, 2. fire the pipe pressure gauge for check fire system pressure, 3. fire pipeline highest point (that is the most unfavorable point pressure meter) for viewing the most unfavorable point pressure value. As for the twenty-seven story tall building, it depends on how many meters, 10 meters and 1 MPa are calculated. An average of 3 meters per layer, 27 X3=71 meters, need 7.1 MPa water pressure.
Fire pump pressure meter work:1, the fire pump outlet pipe pressure gauge (in the pipeline and pipeline pump lift check valve between the pump running only) to show the pressure value, to test the pump outlet pressure and pump running out of water.2. The pressure gauge on the fire main pipe acts as a check on the pressure of the fire system.3, the highest point of the fire pipe (that is, the most adverse point), the role of the pressure gauge to check the most unfavorable point, hydraulic pressure value.
Imagine a floor of 3 meters, the 27 floor is 81 meters, so at least 81 meters to provide water pump pressure + atmospheric pressure, converted to 9.8*81*1000pa+1.01*100000pa=0.8938Mpa
