GDF series centrifugal pipeline fan GDF series centrifugal pipeline fan, due to the company to new product improvements made on the basis of absorbing foreign advanced technology, the product can be directly coupled with the duct, good performance, smooth operation, low noise, reasonable and compact structure, easy to install, is the nineties to replace imported to fill the gaps of new products. Fan structure: Impeller by a plurality of forward arc aluminum alloy blades, front disc, rear disc composed of mechanized molds are made, and static and dynamic balance calibration, smooth and reliable operation, has a good aerodynamic performance. The housing is made of galvanized steel or stainless steel plate, after spot welding mechanization and mold splicing. Firm structure, reasonable and compact. Motor mount galvanized steel through mechanization mold forming. Motors are supported by a single external rotary motor, the impeller is fixed to the motor housing, motor supporting end attached to the motor bearings, motor bearings fixed on the cabinet top, directly driven by the motor housing rotating impeller running. Fan Uses: The product can be widely used in hotels, shopping malls, hospitals, theaters, dance halls, auditoriums, universities and research institutes, as well as industrial and civil buildings ventilation inside. Conditions of use: type of gas transport; air and other non-natural, non-corrosive, harmless gases. Impurity gases inside; allowed to sticky substances the gas contained in the dust and hard particles is not greater than 1 20mg / m3. Gas temperature range: a 20 ℃ ~ 80 ℃. Fans of the series only for indoor installation, and a front view of the orientation of the sample should be installed, must not be installed upside down, on its side allowed the installation, otherwise it will affect motor life. For installed on the outside, the rain must consider measures motor. Design choice Description: Before the pipeline belongs to a multi-wing centrifugal blower fan, in the same amount of wind, air pressure conditions, the noise is lower than the multi-axial fans. This series of fan air flow, pressure, noise and other parameters is based on the actual needs of many projects put forward, it is widely used in public places, delivery, exhaust systems. The fan in the top surface of the housing is marked with an arrow direction of the wind, to avoid reverse mounting, ensure the normal use of delivery, exhaust systems. When transporting the cryogenic air may cause the outer surface of the casing and tubing condensation, the insulation should be designed. Fan noise is rated wind, air pressure is not anemometer averages measured one meter away from the inlet tube when equipped with inlet and exhaust pipes, the noise will be attenuated. For higher noise demanding applications, you should configure bend muffler or silencer on the air intake and exhaust pipes. Fan with single-phase (220V) motor power line is placed in the fan power wiring diagram box. Fan runs small vibration damping measures are usually unnecessary. If the design deems it necessary, can be added or vibration damping rubber spring at the fan support. Performance Parameters Model Air Volume m3 / h Total pressure Pa speed (r / min) Voltage (V) Current (A) Motor power (kw) noise dB (A) Weight (Kg) GDF2.5-8 550 91 700 220 0.50 0.04 46 21 GDF3.0-8 1000 138 700 380 0.52 O.09 52 27 GDF4.0-10 2000 170 550 380 0.87 0.18 56 51 GDF4.0-8 2400 260 690 380 1.49 O.37 60.5 51.5 GDF4.5-10 3000 221 550 380 1.49 O.37 60 62 GDF5.0-10 4000 276 550 380 2.30 0.65 63 78 Dimensions Unit: mm Model ABCDEFH H1 H2 W GDF2.5-8 460 440 418 290 270 248 70 480 180 196 GDF3. O-8 540 522 498 340 322 298 70 560 210 231 GDF4.0-10 740 720 698 440 420 398 72 780 278 317 GDF4.0-8 740 720 698 440 420 398 72 780 278 317 GDF4.5-10 780 760 738 490 470 448 83 810 305 336 GDF5.0-8 840 820 798 540 520 498 122 880 328 366