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Requirements for setting up fire water pumps
- Categories:Industry News
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- Time of issue:2023-04-18 15:58
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(Summary description)1. The performance of the fire water pump should meet the requirements for flow and pressure required by the fire water supply system. 2. The power of the driver equipped with the fire water pump should meet the power requirements for operation at any point on the selected water pump flow head performance curve. 3. When using an electric motor driven fire water pump, a fire water pump with a dry motor installation should be selected. 4. The fire water pump should be installed in a dry manner, and should be placed outside the water tank. Submersible pumps cannot be directly placed in the water for suction. 5. The flow head performance curve should be a smooth curve without humps or inflection points. The pressure at zero flow should not exceed 140% of the design working pressure, and should be greater than 120% of the design working pressure. 6. When the outlet flow rate is 150% of the design flow rate, the outlet pressure should not be lower than 65% of the design working pressure. 7. The sealing method and material of the pump shaft should meet the requirements for the operation of the fire pump at low flow rates. 8. The models of fire water pumps for the same pump group should be consistent, and the number of working pumps should not exceed 3. 9. When multiple fire water pumps are connected in parallel, the impact of flow superposition on the outlet pressure of the fire water pump should be checked.
Requirements for setting up fire water pumps
(Summary description)1. The performance of the fire water pump should meet the requirements for flow and pressure required by the fire water supply system.
2. The power of the driver equipped with the fire water pump should meet the power requirements for operation at any point on the selected water pump flow head performance curve.
3. When using an electric motor driven fire water pump, a fire water pump with a dry motor installation should be selected.
4. The fire water pump should be installed in a dry manner, and should be placed outside the water tank. Submersible pumps cannot be directly placed in the water for suction.
5. The flow head performance curve should be a smooth curve without humps or inflection points. The pressure at zero flow should not exceed 140% of the design working pressure, and should be greater than 120% of the design working pressure.
6. When the outlet flow rate is 150% of the design flow rate, the outlet pressure should not be lower than 65% of the design working pressure. 7. The sealing method and material of the pump shaft should meet the requirements for the operation of the fire pump at low flow rates.
8. The models of fire water pumps for the same pump group should be consistent, and the number of working pumps should not exceed 3.
9. When multiple fire water pumps are connected in parallel, the impact of flow superposition on the outlet pressure of the fire water pump should be checked.
- Categories:Industry News
- Author:
- Origin:
- Time of issue:2023-04-18 15:58
- Views:
1. The performance of the fire water pump should meet the requirements for flow and pressure required by the fire water supply system.
2. The power of the driver equipped with the fire water pump should meet the power requirements for operation at any point on the selected water pump flow head performance curve.
3. When using an electric motor driven fire water pump, a fire water pump with a dry motor installation should be selected.
4. The fire water pump should be installed in a dry manner, and should be placed outside the water tank. Submersible pumps cannot be directly placed in the water for suction.
5. The flow head performance curve should be a smooth curve without humps or inflection points. The pressure at zero flow should not exceed 140% of the design working pressure, and should be greater than 120% of the design working pressure.
6. When the outlet flow rate is 150% of the design flow rate, the outlet pressure should not be lower than 65% of the design working pressure. 7. The sealing method and material of the pump shaft should meet the requirements for the operation of the fire pump at low flow rates.
8. The models of fire water pumps for the same pump group should be consistent, and the number of working pumps should not exceed 3.
9. When multiple fire water pumps are connected in parallel, the impact of flow superposition on the outlet pressure of the fire water pump should be checked.
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