HL3-2A SWF (B)] series low noise energy saving Francis fan is between the range of axial and centrifugal fan with a new fan, it has a high pressure centrifugal fan, axial fan flow high efficiency, energy saving, low noise, easy installation features. The Ying of this series fan design, compact structure, small size, light weight, easy to install, saving 20% ??compared with the old-fashioned centrifugal fan, speed is less than 2000r/min noise lower than 75dB (A), fan coupling pipes and mounted in an air-conditioned box when noise is less than 70dB (A). Instead of in the following 2000pa, low-pressure centrifugal fan, are widely used in industrial and civil construction ventilation and dust removal. A fan of the structural characteristics of the fan impeller, casing, imported current collector, deflector, electric motors and other components. Impeller using meridional acceleration features distorted flat plate welded to the hub. Balancing check, overspeed test, good aerodynamic performance. The case is made of round, coupled into a whole set of wind and mute function. The outlet is equipped with a deflector having a good air distribution and stable pressure. Second, the use of the fan HL3-2A [SWF (B)] series mixed flow fan is widely used in tunnels, the ventilation underground garage, civil construction, metallurgy, factories, mines, and other places, and fire temperature exhaust, HL3-2A [SWF (B)] series fan transport the gas temperature must not exceed 80 ° C, and the special environment the choice of anti-riot Francis fan. Select fan performance fan performance inspection in the performance table, the table lists the performance is the performance of the highest efficiency within the flow is divided into five characteristics selection performance table, the factory blower qualified products performance pressure value is not more than ± 5% of full rated flow. Performance selection table is the standard state of performance, performance at standard state bored technology file or ordering requirements prevail the standard state atm = 101325Pa, t = 20 relative temperature air state Ψ = 50%, when the actual conditions of use and the conversion, in accordance with the relevant formula does not meet the fan can be divided into vertical or horizontal, vertical installation indicated in the order in performance parameters such as flow, pressure mounting dimensions with special requirements, the company will be designed production. HL3-2A SWF (B)] series low noise energy saving Francis fan is between the range of axial and centrifugal fan with a new fan, it has a high pressure centrifugal fan, axial fan flow high efficiency, energy saving, low noise, easy installation features. The Ying of this series fan design, compact structure, small size, light weight, easy to install, saving 20% ??compared with the old-fashioned centrifugal fan, speed is less than 2000r/min noise lower than 75dB (A), fan coupling pipes and mounted in an air-conditioned box when noise is less than 70dB (A). Instead of in the following 2000pa, low-pressure centrifugal fan, are widely used in industrial and civil construction ventilation and dust removal. A fan of the structural characteristics of the fan impeller, casing, imported current collector, deflector, electric motors and other components. Impeller using meridional acceleration features distorted flat plate welded to the hub. Balancing check, overspeed test, good aerodynamic performance. The case is made of round, coupled into a whole set of wind and mute function. The outlet is equipped with a deflector having a good air distribution and stable pressure. Second, the use of the fan HL3-2A [SWF (B)] series mixed flow fan is widely used in tunnels, the ventilation underground garage, civil construction, metallurgy, factories, mines, and other places, and fire temperature exhaust, HL3-2A [SWF (B)] series fan transport the gas temperature must not exceed 80 ° C, and the special environment the choice of anti-riot Francis fan. Select fan performance fan performance inspection in the performance table, the table lists the performance is the performance of the highest efficiency within the flow is divided into five characteristics selection performance table, the factory blower qualified products performance pressure value is not more than ± 5% of full rated flow. Performance selection table is the standard state of performance, performance at standard state bored technology file or ordering requirements prevail the standard state atm = 101325Pa, t = 20 relative temperature air state Ψ = 50%, when the actual conditions of use and the conversion, in accordance with the relevant formula does not meet the fan can be divided into vertical or horizontal, vertical installation indicated in the order in performance parameters such as flow, pressure mounting dimensions with special requirements, the company will be designed production. HL3-2A SWF (B)] series low noise energy saving Francis fan is between the range of axial and centrifugal fan with a new fan, it has a high pressure centrifugal fan, axial fan flow high efficiency, energy saving, low noise, easy installation features. The Ying of this series fan design, compact structure, small size, light weight, easy to install, saving 20% ??compared with the old-fashioned centrifugal fan, speed is less than 2000r/min noise lower than 75dB (A), fan coupling pipes and mounted in an air-conditioned box when noise is less than 70dB (A). Instead of in the following 2000pa, low-pressure centrifugal fan, are widely used in industrial and civil construction ventilation and dust removal. A fan of the structural characteristics of the fan impeller, casing, imported current collector, deflector, electric motors and other components. Impeller using meridional acceleration features distorted flat plate welded to the hub. Balancing check, overspeed test, good aerodynamic performance. The case is made of round, coupled into a whole set of wind and mute function. The outlet is equipped with a deflector having a good air distribution and stable pressure. Second, the use of the fan HL3-2A [SWF (B)] series mixed flow fan is widely used in tunnels, the ventilation underground garage, civil construction, metallurgy, factories, mines, and other places, and fire temperature exhaust, HL3-2A [SWF (B)] series fan transport the gas temperature must not exceed 80 ° C, and the special environment the choice of anti-riot Francis fan. Select fan performance fan performance inspection in the performance table, the table lists the performance is the performance of the highest efficiency within the flow is divided into five characteristics selection performance table, the factory blower qualified products performance pressure value is not more than ± 5% of full rated flow. Performance selection table is the standard state of performance, performance at standard state bored technology file or ordering requirements prevail the standard state atm = 101325Pa, t = 20 relative temperature air state Ψ = 50%, when the actual conditions of use and the conversion, in accordance with the relevant formula does not meet the fan can be divided into vertical or horizontal, vertical installation indicated in the order in performance parameters such as flow, pressure mounting dimensions with special requirements, the company will be designed production.