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How to choose a good fire pump?

Many people buy fire pumps for the first time and don’t know how to choose a fire pump. They know very little about fire pumps and don’t know how to choose. So today, on the issue of fire pump selection, here is a explanation for everyone to help you better choose a more competitive fire pump.

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Key point 1: Choose the right flow and head. Different fire pumps have different flow rates and head. Customers can accurately calculate the amount of water and water pressure of the fire pump according to the purpose of the fire pump and the type of engineering it serves. Select the appropriate fire pump according to the calculation results.

Key point 2: Select the fire pump that has passed the type inspection of the national fire protection product quality supervision and inspection agency. In addition, the fire pump that meets the relevant national regulations is not necessarily what you need, but it is definitely not what you need.

Key Point 3: If it is a fire pump for temporary high pressure or steady high pressure fire water supply system, it is recommended to use a fire pump with one or more standby modes. The standby pump should have the same performance as the working pump, and the working capacity should not be less than the largest one of the fire working pumps. In addition, the impact of the pump outlet pressure on the pump outlet pressure is also considered.

Key Point 4: According to the regulations, when the fire pump is used outdoors in factories, warehouses, storage yards and storage tanks, if the fire water consumption is less than or equal to 25 L/s, the indoor fire water consumption of the building is less than or equal to l0 L/s. There is no need to choose a fire pump with a spare pump. It is necessary to select a fire pump that can be started within 30 seconds after the fire.

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    The minimum fire rated pressure of ED small fire fighting package set water supply equipment is 3 bar and the minimum fire rated capacity is 25 GPM. ED small fire fighting package set water supply equipment includes at least two power or power source driven pumping units, pressure tanks, pipes, valves and accessories, measurement and control instruments, control cabinets, outdoor rain cover, etc.
    Motor: Three-phase asynchronous squirrel-cage motor independently developed and manufactured by our company, which can be controlled in production time and greatly shorten the whole set production time.
    Diesel Engine: According to the different parameters of customers, we will choose diesel engines with high cost performance ratio. The main brands are QuanChai, Weichai, ShangChai, FAWDE, Cummins, etc.
    Electric Pumps: Electric pumps can use vertical in-line pumps, horizontal end-suction pumps, vertical multi-
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    Diesel Pumps: Diesel pumps can use vertical in-line pumps, horizontal end-suction pumps, vertical multi-
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    Electronic Components: The main electric components is CHNT, if Schneider or other brand electrical are need, should mention it before place the order.
    Safety Valve plays a safety protection role in the system. When the system pressure exceeds the prescribed value, the safety valve opens, and a part of the gas/fluid in the system is discharged into the atmosphere/pipeline, so that the system pressure does not exceed the allowable value, so as to ensure that the system does not cause accidents due to excessive pressure.
    Pressure Tank: Water is a non-compressible medium. Generally speaking, the pressure drop of fire-fighting pipe network is normal. However, the pressure drop is very slow, the total loss of water in the pipe network isnot large, and the frequent change of pressure in the pipe network leads to frequent start-up and shutdown of pumps. Especially when the power of equipment is high, it will cause great impact on pressure sensors, relaysand motors, thus affecting the performance and life whole equipment. Therefore, it is necessary to choose the right volume of the pressure tank.