Learn Fire Pump Types and Features

The fire pump is an imported product from abroad. It is divided into different types according to different classification methods. It is fully sealed, leak-free and corrosion-resistant. It is widely used in environmental protection, water treatment, fire protection and other departments. It is used to pump various liquids. It is an ideal pump and fire protection system for creating leak-free, pollution-free civilized workshops and civilized factories. Fire pumps are mainly divided into vertical fire pumps and horizontal fire pumps. The flow rate of transported liquid is one of the important performance data for fire pump selection. The flow rate of transported liquid is directly related to the production capacity of the entire device.

Vertical fire pump

1. Features

Vertical fire pump refers to a fire pump that adopts special hydraulic design and structural design, so that it has a flow pressure classification that is more suitable for building fire water supply systems than ordinary centrifugal water pumps, and a fire pump with a flat flow-pressure characteristic curve without humps. All parts of the friction parts due to rotation are made of wear-resistant, corrosion-resistant, and mesh-resistant materials with high reliability. The multi-stage pump can be equipped with double water outlets. The pump body has high bearing capacity, strong anti-overload ability, and sensitive start-up. .

2. Structural requirements

1) The structural form of the pump should ensure easy on-site maintenance and replacement of parts. Fasteners and self-locking devices should not be loosened due to vibration and other reasons.

2) An arrow indicating the direction of rotation should be cast on the pump body.

3) There should be pressure gauges and vacuum pressure gauges (except for submersible pumps and deep well pumps), and the accuracy of the gauges should not be lower than 2.5.

4) The pump should be provided with a drain cock.

5) The nominal pressure of the pump outlet flange should meet the requirements of the maximum working pressure, and the nominal pressure of the pump inlet flange should not be less than 1.0MPa. The connection size of the flange shall comply with the provisions of GB/T 9112-2000 and GB/T 9124-2000.

6) The inlet of the pump should be able to withstand a positive pressure of 0.4MPa.

Horizontal fire pump

Horizontal fire pumps are used to transport clear water without solid particles and liquids whose physical and chemical properties are similar to water. It is specially used for pressurized water supply for fire-fighting systems, and can also be used for mine water supply and drainage. The flow range of the conveying liquid is 5-8L/S, the pressure range is 0.2-2.25MPa, the supporting power range is 1.5-200KW, and the diameter range is ￠50-￠250mm.

1. The fire pump is compact in structure, small in size and beautiful in appearance. Its vertical structure determines that the installation area is small, and its center of gravity is in the center of the pump foot, thus enhancing the operation stability and service life of the pump.

2. The suction port and discharge port of the fire pump are horizontal, which simplifies the connection of pipelines.

3. Multi-stage type can be installed according to the needs, the suction port and the discharge port can be installed in the same direction or several different directions of 90°180°270° to meet different connection occasions.

4. The pressure of the fire pump can be increased or decreased according to the needs, and the outer diameter of the impeller can be cut to meet the requirements without changing the installation area, which is not available in other pumps.

5. The fire pump rotor has a small winding degree, stable operation, low vibration, low noise and long service life.