Sprinkler fire pumps


Sprinkler fire pumps

NP series spray fire pump
Recommended model : NP1700
Application system:

Energy storage power station fire protection system, data center fire protection

Applicable media:


Industry characteristics:

20-50 l / min; 16-20bar working pressure; Small size, high pressure, reliable performance, fire extinguishing for each battery pack, cluster and box level interior



Product description
Product features

• Flow rate: 0.2ml/rev~26ml/rev(2ml/min-65000ml/min)

• Series 42 and 51 can deliver water with a differential pressure of up to 20 Bar, and the system withstand pressure up to 100 Bar; Series 60 and Series 98 can deliver water with a differential pressure of up to 30-50 Bar, and the system can withstand pressures up to 100 Bar.

• Working speed: 1~4000rpm

• Operating temperature range -120~150 degrees Celsius

• The viscosity range of the conveying liquid is 0.25~10000cps, which can run dry and transport gas-liquid two-phase liquid to a certain extent

• Using water as the medium, it can work continuously for more than 20,000 hours under the pressure difference condition of more than 10Bar; The pressure below 5 bar can work continuously for more than 30,000 hours.

• Metrology accuracy up to 0.3%

• The flow rate is stable and pulsation-free, and it can directly form a high-precision closed-loop control system with the flow meter

• Inlet self-priming height up to 4 meters in dry operation (please consult the manufacturer for specific working conditions)

• Inlet vacuum -0.85Bar can operate stably (please consult the manufacturer for specific working conditions)

• The pump adopts magnetic transmission and has no leakage

We could not find any corresponding parameters, please add them to the properties table

 Suofu sprinkler fire pump features

 High and low temperature resistance

 The temperature resistance of NP series sprinkler fire pump is between -120~150 °C


 High pressure resistance

NP series miniature magnetic gear pump adopts magnetic drive design, the whole pump has no moving seal, only O-ring static seal, there is no risk of dynamic seal failure. NP series special cavity profile design, can adapt to the outlet pressure wide range of changing conditions, whether it is low pressure, high pressure or short time reversal can be well adapted.

42 series sprinkler fire pump: inlet and outlet pressure difference up to 20Bar; Pump body pressure resistance up to 30Bar-100bar (customized)   

51/60/98/106 series sprinkler fire pump: the pressure difference between inlet and outlet can reach 40-50Bar or more; The pump body can withstand pressures up to 70 bar

 Abrasion resistant

The gear used in NP series sprinkler fire pump is made of PEEK engineering plastic with high-performance special filling material, and the working tooth surface adopts high-precision one-time injection molding process without mechanical processing. The process of one-time injection molding greatly increases the process difficulty and manufacturing cost, but ensures the complete and dense structure of the gear working surface and improves the wear resistance and life of the gear.

The high-precision industrial zirconia ceramic shaft used in NP series sprinkler fire pump has super wear resistance and rigidity, which ensures the stability of pump work under abrasive liquid and high pressure working conditions and improves the life of the product.

The special gear profile design of Sofu's patented technology provides excellent wear resistance to the gears of the sprinkler fire pump, and the almost pure rolling gear meshing feature minimizes wear during gear operation.

 Corrosion resistant

The whole series of NP series sprinkler fire pump is Sofu's independent patented technology products, which can be customized according to different working conditions with different materials to meet the use of sprinkler fire pump in different systems.

Pump body material: 316L stainless steel / Hastelloy alloy / titanium alloy / other types of alloys / PEEK polymer material [high strength, corrosion resistance, wide temperature range]

Bearing/gear material: PEEK engineering plastic with high-performance special filler material (one-time injection molding) [Excellent self-lubrication, mechanical properties, corrosion resistance and wear resistance, enhance the adaptability of the pump and improve the service life of the product. 】

Shaft material: high-precision industrial zirconia ceramics [high-precision zirconia ceramics have extremely high wear resistance, oxidation resistance, high strength, high hardness, high temperature resistance, corrosion resistance, light weight and other advantages, is an excellent gear shaft material. 】

Magnetic drive material: PPS or PVDF plastic fully coated rare earth magnet [PPS plastic fully coated 150°C high temperature rare earth magnetic drive is used to transmit continuous and powerful torque to the pump. 】

Sealing ring material: fluoroelastomer (FKM) / ethylene propylene diene rubber (EPDM) / Teflon (PTFE) / fluorosilicone rubber (FVMQ) / neoprene (CR) / PTFE energy storage sealing ring [A variety of materials are optional, adapt to a variety of corrosive liquids, greatly reducing the risk of leakage. 】


 No leakage in magnetic transmission

NP series sprinkler fire pump products use magnetic couplings, which eliminates the leakage risk and maintenance cost caused by traditional dynamic seals.


 Low noise

At 2000rpm, the noise of NP series sprinkler fire pump products is between 45dB~75dB.

Helical gears can be used for applications with high noise requirements.

 Strong self-suction

In the case of full dry operation, the self-priming height of the inlet of the NP series spray fire pump can reach 4 meters, and the vertical suction height is 8.2 meters.

 Long service life

In the clean medium, NP series sprinkler fire pump can be used for more than 20,000 hours

 Can run dry for a long time

In many applications where self-priming is required, it is of no practical use if the pump can only run dry for a short time. The dry running time of imported pumps of the same type is very short, generally measured in seconds or minutes, and the dry running time of NP series products can reach 100 hours at the appropriate speed.

In applications where the inlet vacuum of the pump is used to draw media into the pump, the NP Series provides reliable dry running performance without damage due to dry operation during self-priming.

 The outlet pressure difference is stable and pulsation-free

Compared with plunger and diaphragm sprinkler fire pumps, NP series magnetic gear pumps have stable flow and no pulsation, which can easily form a closed-loop control system with various flow meters.

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TEL:137 6431 9509

R & D sales: room 723, Cao'an International Mall, No. 1855, Cao'an Road, Jiading District, Shanghai

Production base: Building 10, Sanming Zhongguancun Science Park, No. 9, Yingbin Avenue, Qiujiang street, Shaxian District, Sanming City, Fujian Province

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