Inspection-free boiler pump
It provides a stable high-pressure source for high-temperature circulating water, and the flow rate is precisely adjustable, stable and reliable.
• Flow: 0.2ml/rev~26ml/rev (2ml/min-65000ml/min)
• The differential pressure of 42 and 51 series can reach 20Bar when delivering water, and the highest system pressure can reach 100Bar; the pressure difference of 60 and 98 series can reach 30-50Bar when delivering water, and the highest system pressure can reach 100Bar.
• Working speed: 1~4000rpm
• Working temperature range -120~150 degrees Celsius
• The viscosity range of conveying liquid is 0.25~10000cps, it can run dry to a certain extent and convey gas-liquid two-phase liquid
• With water as the medium, it can work continuously for more than 20,000 hours when the pressure difference is above 10Bar; it can work continuously for more than 30,000 hours when the pressure is below 5Bar.
• Measurement accuracy can reach 0.3%
• The flow rate is stable without pulsation, and can directly form a high-precision closed-loop control system with the flowmeter
• Inlet self-priming height up to 4 meters under dry running conditions (please consult the manufacturer for specific working conditions)
• Inlet vacuum -0.85Bar can operate stably (please consult the manufacturer for specific working conditions)
• Pump adopts magnetic drive without leakage
Features of Suofu inspection-free boiler water pump
High and low temperature resistance
The temperature resistance of NP series inspection-free boiler water pumps is between -120~150°C
NP series miniature magnetic gear pump adopts magnetic drive design, the whole pump has no dynamic seal, only O-ring static seal, there is no risk of dynamic seal failure. The special design of the cavity profile of the NP series can adapt to the working conditions of a wide range of outlet pressure changes, whether it is low pressure, high pressure or short-term reversal.
42 series inspection-free boiler water pump: the pressure difference between the inlet and outlet can reach 20Bar; the pressure resistance of the pump body can reach 30Bar-100bar (customized)
51/60/98/106 series inspection-free boiler water pump: the pressure difference between the inlet and outlet can reach more than 40-50Bar; the maximum pressure resistance of the pump body can reach 70Bar
The gear used in the NP series inspection-free boiler water pump is made of PEEK engineering plastic material with high-performance special filling material. The working tooth surface adopts a high-precision one-time injection molding process without machining. The one-time injection molding process greatly increases the difficulty of the process and the manufacturing cost, but it ensures the complete and compact structure of the working surface of the gear, and improves the wear resistance and life of the gear.
The high-precision industrial zirconia ceramic shaft used in the NP series inspection-free boiler water pump has super wear resistance and rigidity, which ensures the stability of the pump work under abrasive liquid and high-pressure conditions and prolongs the life of the product.
The special gear profile design of Sofon's patented technology provides excellent wear resistance for the gears of the non-inspection boiler water pump, and the almost pure rolling gear meshing feature can minimize the wear of the gears during operation.
The whole series of NP series inspection-free boiler water pumps are products with independent patent technology of Suofu, and different materials of inspection-free boiler water pumps can be customized according to different working conditions to meet the use of inspection-free boiler water pumps in different systems.
Pump body material: 316L stainless steel / Hastelloy / titanium alloy / other types of alloy / PEEK polymer material [high strength, corrosion resistance, wide temperature range]
Bearing/gear material: PEEK engineering plastic containing high-performance special filling material (one-time injection molding) [excellent self-lubrication, mechanical properties, corrosion resistance and wear resistance, which enhance the adaptability of the pump and improve the use of the product life. 】
Shaft material: high-precision industrial zirconia ceramics [high-precision zirconia ceramics have the advantages of extremely high wear resistance, oxidation resistance, high strength, high hardness, high temperature resistance, corrosion resistance, and light weight, and are excellent gear shaft materials. 】
Magnetic drive material: PPS or PVDF plastic fully-covered rare earth magnet [Using PPS plastic full-covered 150°C high-temperature rare-earth magnetic drive to transmit continuous and powerful torque to the pump. 】
Sealing ring material: fluororubber (FKM) / EPDM (EPDM) / Teflon (PTFE) / fluorosilicone rubber (FVMQ) / neoprene (CR) / PTFE energy storage sealing ring [multiple materials are available Optional, suitable for a variety of corrosive liquids, greatly reducing the risk of leakage. 】
Magnetic drive without leakage
NP series inspection-free boiler water pump products adopt magnetic coupling, which eliminates the leakage risk and maintenance cost caused by traditional dynamic seals.
At 2000rpm, the noise of NP series inspection-free boiler water pump products is between 45dB and 75dB.
Helical gears can be selected for working conditions with high noise requirements.
Under the condition of full dry operation, the self-priming height of the inlet of the NP series non-inspection boiler pump can reach 4 meters, and the vertical suction height is 8.2 meters.
In clean medium, NP series inspection-free boiler water pumps can be used for more than 20,000 hours
Can run dry for extended periods of time
In many applications where self-priming is required, it is of no practical use if the pump can only run dry for short periods of time. The dry running time of the imported pumps of the same type is very short, generally measured in seconds or minutes. The dry running time of NP series products can reach 100 hours at a suitable speed.
In applications where the pump's inlet vacuum is required to draw media into the pump, the NP range offers dry-running confidence that the pump will not be damaged by dry-running when self-priming.
The outlet pressure difference is stable without pulsation
Compared with the plunger type and diaphragm type non-inspection boiler water pump, the NP series magnetic gear pump has a stable flow rate and no pulsation, and can easily form a closed-loop control system with various flowmeters.
Customer service contact
Service time:9:00 — 18:00
24 hours after sales