Company profile. .k{im ¾T{HjoM qäqø HoÄH ÂÄIÿ j¼i
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2 Company profile After years of hard working, Toofansaz Kerman is proud to offer the engineers and technicians of cooling/heating systems and producers of food dryer machinery, 0 different types of centrifugal fans, hoping to keep it s customers satisfied and take a step forward to the independence of Iran in this regard. Specifications of Toofansaz fans: Cost-effective compared to the foreign models High efficiency and low power consumption Prompt delivery and after-sale services Offering a wide range of choices and customizations for special uses Since Iranian engineers, experts and technician s are familiar with Italian Nicotra products, TSK has tried to produce fans of the same size to make it easier for the customers to use them. TSK guarantees the use of galvanized corrosion/rust-resistant in production of it products. TSK hopes to see you as one of it s customers for many years to come. nj» kã²¼u r¼ãÿäotºiw Î Ïk Âw ph yãm oã«ãq x U I ²Iw ph uq jnhj nihtîh I o piw Iμö S o{. ÂÄHmü jh¼ jo zi IM ¾ ºHpIw Ã{I» ÂUj»oM» ÂUnHoe ÁI μtvãw Ã~~hT» Ãwk¹ niãtih.k{im ¾T{HjoM qäqø HoÄH ÂÄIÿ j¼i :piw Iμö ¾ºIinI SiIw ÁIÀ Î RIÃż~i Â]nIi ¾MIz ÌH¼ºH ph ou ¾ÎoÅ ¾M»o ÍÄow ļdU» IwA ÂwoTwj ÁroºH ýo~» jim ji\äh S ] ph IM niãvm I kºhn ºHoÄH I k¹¹ ýo~» Ã~~hT ¾ I\ºA ph ou I ÁI eoö ji\äh S ] nj ½k¹¹ ýo~ IM I ÁnI μà ¾MIz IÀ Î ÄH ½pHkºH kºh½j¼m I¹{A IòITÄH ÁHoU¼ ú ¾ºIinI SiIw ÁIÀ Î ÂÀj jim Hqû IÀ½pHkºH IM I ²Iw JIhTºH Hn j¼i pi㺠jn¼ ÁIÀ¾º¼μº k¹ºh¼tm otºiwa I k¹¹ ýo~ IU ½kÄjo JIhTºH ¾ºIinI A SiIw ÁI ²k μ.k{im ¾T{Hj Hn ³H»j ÄoTzÃM. Ã{IM ³oTd IÄoTz Iμ{ S ki nj nihtîh IM phnj IòIw úH¼TM ÄnH»kà H ISO 01-8 Centrifugal Fans 1
3 Fan Laws Fan laws can apply to any range of fans of geometric similarity FOR CONSTANT FAN SIZE AND DENSITY: I. Volume varies directly as the speed ratio: - V 2 = V 1 N2 N1 II. Pressure varies as the square of the speed ratio: - P2 = P1 N2 N1 2 III. Power Varies as the cube of the speed ratio: - kw 2 = kw 1 N2 N1 FOR CONSTANT FAN SPEED AND DENSITY: I. Volume varies as the cube of the ratio of fan sizes: - V 2 = V 1 D2 D1 II. Pressure varies as the square of the ratio of fan sizes: - P2 = P1 D2 D1 2 III. Power varies as the fifth power of the ratio of fan sizes: - kw 2 = kw 1 D2 D1 5 FOR CONSTANT SIZE, SPEED & VOLUME: I. Pressure varies directly as the ratio of densities: - P2 = P1 2 1 II. Power varies directly as the ratio of densities: - kw 2 = kw DENSITY CONVERSION FOR A GIVEN TEMPERATURE: - Where: 1 is density at t 1ºC and 2 is density at t 2ºC 2 = t t2 KEY: Volume = V Pressure = P Temperature = t Fan size = D Power absorbed = kw Standard air temp./density = 20ºC / 1.2kg/m³ Air density = Fan speed = N Standard atmospheric pressure = bar 2 Centrifugal Fans
4 Unit Conversion Physical Quantity Mass lb 0.56 Kg Kg 06 lb Inch 25. Length 0.09 Inch m.281 Ft Ft 0.08 m m² Ft² Area m² Inch² Inch² 6.5 cm² Ft² cm² m³ 5.2 Ft³ Volume Ft³ cm³ CFM m³/h lit/s.6 m³/h CFM m³/s GPM.78 lit/min Velocity m/s 196. fpm Bar Kpa inhg.86 Kpa wg 9.67 pa Pressure inwg pa atm 9.9 Hg atm 101 mbar N/m² 0.00 inwg Kw.8 Btu/h hp 7 W w 1.6 hp Density lb/ft³ Kg/m³ Volume Flow Rate Power/Energy Given Gives Gives Given Temperature c 1.8 F-2 Centrifugal Fans
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6 Whether you are looking for low noise, high efficiency, or the security of fans designed and built for the long haul, TOOFANSAZ Fans has pioneered since near 20 years of experience, Toofansaz is one of the largest and longest established manufacturer of centrifugal fans. TDF (Double Inlet Centrifugal Forward Fan) [with 2 types of housing] Forward-curved centrifugal fans are special in that they deliver considerably more air volume and also produce higher static pressure than backward centrifugal fans of the same size and speed.(but at the lower efficiencies)(fan Handdook) Volume flow from m/h to m/h Total Pressure up to 1. Available from the size 7-7 up to the size Do not use in this area Standard Air conditions: = 1.2 Kg / m T=20 c motor efficiency = % TDF 7-7 TDF PRESSURE TOTAL X X PRESSURE TOTAL * Perfromance shown is for free outlet. * Power rating kw doesn t include drive lesses. Centrifugal Fans 5
7 PRESSURE TOTAL TDF X X PRESSURE TOTAL TDF Do not use in this area Standard Air conditions: = 1.2 Kg / m T=20 c motor efficiency = % TDF TDF 12-9 PRESSURE TOTAL X X * Perfromance shown is for free outlet. * Power rating kw doesn t include drive lesses PRESSURE TOTAL Centrifugal Fans
8 PRESSURE TOTAL TDF X X PRESSURE TOTAL TDF Do not use in this area Standard Air conditions: = 1.2 Kg / m T=20 c motor efficiency = % TDF - 9 TDF 18-1 PRESSURE TOTAL X X PRESSURE TOTAL * Perfromance shown is for free outlet. * Power rating kw doesn t include drive lesses. Centrifugal Fans 7
9 TOTAL PRESSURE TDF WHEEL DIAME TER X X TOTAL PRESSURE TDF Do not use in this area Standard Air conditions: = 1.2 Kg / m T=20 c motor efficiency = % TDF TDF TOTAL PRESSURE X X TOTAL PRESSURE * Perfromance shown is for free outlet. * Power rating kw doesn t include drive lesses. 8 Centrifugal Fans
10 TOTAL PRESSURE TDF TOTAL PRESSURE X X TDF Do not use in this area Standard Air conditions: = 1.2 Kg / m T=20 c motor efficiency = % TDF TDF W HEEL DIAMETE R TOTAL PRESSURE N/m X X TOTAL PRESSURE * Perfromance shown is for free outlet. * Power rating kw doesn t include drive lesses. Centrifugal Fans 9
11 2 TOTAL PRESSURE N/m TDF W HEEL DIAMETE R X X TOTAL PRESSURE TDF Do not use in this area Standard Air conditions: = 1.2 Kg / m T=20 c motor efficiency = % TOTAL PRESSURE X 0 TDF * Perfromance shown is for free outlet. * Power rating kw doesn t include drive lesses Fan Dimensions TDF-Double Inlet Centrifugal Forward Fan (Dimentions) A B C E H L M R S V K t t1 W d Model(inch) 7*7 9*7 9*9 10*8 10*10 12*9 12*12 * * 18*1 18*18 20* 20*20 22* 22*22 25*20 25*25 28*20 28*28 0*20 0* Centrifugal Fans
12 Fan Drawing TYPE (A) M K R R K H TYPE (B) M Ød B H K K W t t1 C S C S W t t1 Ød E L A Ød V B Ød E P A V Centrifugal Fans
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14 TBA (High Performance Double Inlet Centrifugal Fans With Airfoil Blades) Airfoil centrifugal fans are the deluxe centrifugal fans. They have the following features: 1-They have the highest efficiencies of all centrifugal fans. 2-They have low noise levels. -They have high structural strengh so that they can run at high speeds and produse up to 0 in. WC of static pressure. -The blades are made as hallow airfoils of steel it can be obtained the highest efficiencies in the all types of airfoil fans.[2] 5-Volume flow from 000 m/h to.000 m/h 6-Total pressure up to Sizes from to. Ptot[] 0 0 [] Lws [ db(a)] Ptot[] 0 0 [] Lws [ db(a)] X m /h TBA- X Standard Air conditions: = 1.2 Kg / m T=20 c motor efficiency = % TBA-5 m /h Ptot[] 0 [] Lws [ db(a)] Ptot[] 0 0 [] Lws [ db(a)] X m /h TBA- X m /h TBA- Centrifugal Fans 1
15 Ptot[] 0 0 [] Lws [ db(a)] Ptot[] 0 0 [] Lws [ db(a)] X m /h TBA- X m /h TBA-710 Standard Air conditions: = 1.2 Kg / m T=20 c motor efficiency = % 1 Centrifugal Fans
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17 TSF Single inlet centrifugal fans with forward blades. Volume flow from m/h to m/h Total Pressure up to 2. TSF 9- Ptot[] [] Lws [ db(a)] X TSF 12-6 Ptot[] [] Lws [ db(a)] X Standard Air conditions: = 1.2 Kg / m T=20 c motor efficiency = % TSF 10-6 Ptot[] [] X Lws [ db(a)] TSF -6 Ptot[] [] Lws [ db(a)] X Centrifugal Fans
18 TSF 18-8 Ptot[] 0 X 0 [] Lws [ db(a)] TSF 25-1 Ptot[] 0 X 0 [] Lws [ db(a)] Standard Air conditions: = 1.2 Kg / m T=20 c motor efficiency = % TSF 22- Ptot[] 0 X 0 [] Lws [ db(a)] TSF 0-1 Ptot[] [] X 0 Lws [ db(a)] Centrifugal Fans 17
19 18 Centrifugal Fans W t1 t K V S R M L H E C B A Model(inch) TSF- Single Inlet Centrifugal Forward Fan (Dimentions) * * * * * * * *1 A R C H B L Ød M E S Ød t w t1 Fan Drawing and Dimensions
20 Note: Centrifugal Fans 19
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