Centrimaster GX Catalogue GX Rev.01. January 2009

Transcription

1 Centrimaster GX Catalogue GX Rev.01 January 2009

2 Versions CENTRIMASTER GX is a new generation centrifugal fan for air handling units. It is available for air flow up to 35 m3/s and for pressure rise up to 3,300 Pa. The fan series consists of centrifugal fans with two imp ller types, with forward curved blades (GXLF) and back ward curved blades (GXLB and GXHB). GXLB and GXHB have similar aerodynamic properties but the type GXHB is a reinforced version for higher speeds. GXLB with frame GXHB with feet

3 General Survey Charts GXLB/GXHB Air flow, m 3 /h Size Total pressure rise, Pa ,1 0,2 0, Air flow, m 3 /s

4 Design Fan Casing Sizes The fan casing is made of sendzimirgalvanized sheet steel. The casing side plates are stamped in one piece and the inlets are deeppressed in the side plates. The side plates and the scroll plate of the casing are jointed by the Pittsburg folding method which produces tight, strong joints. Due to this folding method and the deeppressed inlets, the construction is stable and of high and uniform quality. The casing side plates are internally provided with weldednuts for fixing the supporting frame. The fan cutoff has a special design to ensure optimal aerodynamic properties. Fan Inlet The design of the fan inlet is of vital importance to the fan efficiency and sound level. On the GXLB and GXHB fans the inlet must be deeper and must also extend into the impeller with a certain amount of overlap and a small, accurately predetermined radial gap. The inlet cones of the GXLB and GXHB in sizes fans are deepdrawn in one piece and fitted into the side plate of the corresponding GXLF fan. This implies that the GXLB and GXHB fans have a double inlet construction which gives additional rigidity to the fan casing. The inlet cones of normal version is made of galvanized steel. Pittsburg Fan casing GXLB

5 Design Impeller The impellers with backwardcurved blades (GXLB and GXHB) are made of steel, welded and painted with 60 my epoxy powder (color tone AM 8043, dark grey). GXLB and GXHB impellers in sizes are dynamically balanced to an accuracy of G 2.5 according to ISO at the maximum speed. The impeller is secured to the shaft with key. Shaft The shafts are made of steel and both shaft ends are equipped with keyways for pulleys. The shafts are dimensioned so as to make them withstand fatigue and a critical speed t hat is at least 20% higher than the max. speed of the fan. The shafts are protected against corrosion. GXHB Impeller with backward curved blades GXLF Impeller with forward curved blades

6 Design Bearing The GXLB fans are equipped with permanently lubricated singlerow deepgroove ball bearings sealed at both sides. These bearings are secured to the shaft by means of an eccentric locking collar The bearings are supported by three or fourarmed strong bearing supports. Plummer blocks with grease nipples can be supplied as an accessory for GXLB fans in size , see Accessories. The GXHB fans, sizes 050, is equipped with permanently lubricated singlerow deepgroove ball bearings sealed at both sides. These bearings are secured to the shaft by means of a conical adapter sleeve. The bearings are supported by three or fourarmed strong bearing supports. Plummer blocks with grease nipples can be supplied as an accessory. Bearing of GXLF and GXLB fans up to size 071 The GXHB fans, sizes , are equipped as standard with plummer blocks which have selfaligning roller bearings mounted on a welded, sturdy bearing bracket made of flat steel. Roller bearings are equipped with grease nipples. For bearing life time, see Selection of belt drive. Materials and surface treatment Bearing of GXHB in size 050 The standard design of the GX fans meet the requirements of the environment class M2. Fan casing: Inlet cone: Shaft: Sendzimirgalvanized sheet steel (layer of zink 275g/m2) Sendzimirgalvanized sheet steel in normal version Brass in sparkproof version Centerless ground steel with corrosion protection Fan impeller: GXLB and GXHB: Steel, welded and painted with 60 my epoxy powder, color tone AM 8043 dark grey. Bearing of GXHB in size

7 Specification GXLB CENTRIMASTER GXLB Double inlet centrifugal fan for belt drive. Fan casing made of Sendzimir galvanized sheet steel and jointed by Pittsburg folding method. Steel impeller with backward curved blades, blades welded to the shroud. Impeller is degreased, iron phosphatized and painted with epoxypowder paint 60 mm. Impeller is dynamically balanced to an accuracy of G 2.5 (sizes ) or G 6.3 (sizes ) according to ISO Fan cutoff is specially designed for optimal aerodynamical properties. Steel shaft with keyways at both ends and designed for a critical speed which is 20% higher than the maximum speed of the fan. Impeller secured to the shaft by means of a key. Permanently lubricated singlerow deepgroove ball bearings sealed at both sides, secured to the shaft by means of an eccentric locking collar. The bearings are supported by three or fourarm spider. Fan performance is measured according to AMCA and sound data according to AMCA Fan data is presented according to AMCA for sizes The manufacturer's quality system is ISO 9001 certified and environmental management system is ISO certified. Air flow, Q...m 3 /min Total pressure rise, P t...mmaq Power demand, H...kW Fan static efficiency, etas...% Fan total efficiency, etat...% Aweighted total sound power level, L WA...dB(A)

8 Specification GXHB CENTRIMASTER GXHB Double inlet centrifugal fan for belt drive. Fan casing is made of Sendzimir galvanized sheet steel and jointed by Pittsburg folding method. Steel impeller with back ward curved blades, blades continuously welded to the shroud. Impeller is degreased, iron phosphatized and painted with epoxypowder paint 60 mm. Impeller is dynamically balanced to an accuracy of G 2.5 according to ISO Fan cutoff is specially designed for optimal aerodyna mical properties. Steel shaft with keyways at both ends and designed for a critical speed which is 20% higher than the maximum speed of the fan. Impeller secured to the shaft by means of a key. GXHBfans in sizes 050 have permanently lubricated singlerow deepgroove ball bearings sealed at both sides, secured to the shaft by means of a taper mounting sleeve. The bearings are supported by three or fourarm spider. GXHBfans in sizes 056 to 071 have plummer blocks with selfaligning roller bearings equipped with grease nipples. The roller bearings are supported by a welded bracket. Fan performance is measured according to AMCA and sound data according to AMCA Fan data is presented according to AMCA for sizes The manufacturer's quality system is ISO 9001 certified and environmental management system is ISO certified Air flow, Q...m 3 /min Total pressure rise, P t...mmaq Power demand, H...kW Fan static efficiency, etas...% Fan total efficiency, etat...% Aweighted total sound power level, L WA...dB(A)

9 Specification GXLF CENTRIMASTER GXLF Double inlet centrifugal fan for belt drive. Fan casing made of Sendzimir galvanized sheet steel and jointed by Pittsburg folding method. Impeller with forward curved blades, made of Sendzimir galvanised sheet steel. Impeller is dynamically balanced to an accuracy of G 6.3 according to ISO Steel shaft with keyways at both ends and designed for a critical speed which is 20% higher than the maximum speed of the fan. Permanently lubricated singlerow deepgroove ball bearings sealed at both sides, secured to the shaft by means of an eccentric locking collar. The bearings are supported by three or fourarm spider. GXLFfans in sizes 080 and 090 have plummer blocks with grease nipples supported by a welded bracket. Fan perfor mance is measured according to AMCA and sound data according to AMCA Fan data is presented according to AMCA for sizes 045, 050, 063 The manufacturer s quality system is ISO 9001 certified and environmental management system is ISO certified. Air flow, Q...m 3 /min Total pressure rise, P t...mmaq Power demand, H...kW Fan static efficiency, etas...% Fan total efficiency, etat...% Aweighted total sound power level, L WA...dB(A)

10 Fan starting Fan power demand Transmission Motor power demand Select the motor Select the method of starting Direct online or stardelta starting Calculate the starting time for operation Starting time too long Equipment for heavy starting Starting time too long Check the permissible starting time for the motor Select the starter Check the tripping time for the overload protection To calculate the starting time for direct online starting Use the following formula: Symbols used P P m =motor rating... kw = power demand of the fan at rated speed (including belt drive losses, if any)...kw P Y/Δ = lowest motor rating for which stardelta starting is possible... kw The calculated staring time is the time for accelerating the M fan from rest to full speed. st 2) = ratio of starting torque to normal torque of the motor M To calculate the starting time for stardelta starting M max 2) = ratio of maximum torque to mormal torque Use the following formula: of the motor M nf = rated speed of fan... r/min J 1) = moment of inertia of the system referred to the fan shaft... kg m2 t = starting time... s The calculated starting time is the time during which the stardelta starter must be in star connection for the fan to reach approx. 90% of full speed, whereupon it switches over to delta connection. For stardelta starting, a check must also be made to ensure that the motor torque curve is higher than the fan torque curve during the star connection peridod. The lowest possible motor rating for stardelta can be calculated by means of the following expression. Δ 2) The moment of inertia of the fan impeller is specified in the fan chart and the moment of inertia of the rotor can generally be ignored. 3) See the calalogue of the motor supplier.

11 Fan charts acoustic data GXHB/GXLB5050 Beltdriven, doubleinlet, backwardinclined blades Impeller diameter: 500 mm. Flakt Woods Korea certifies that the fans shown hereon are licensed to bear the AMCA Seal. The ratings shown are based on tests and proced ures performed in accordance with AMCA Publication 211 and 311 and comply with the requirements of the AMCA Certified Ratings Program. Performance certified is for Installation type B free inlet, ducted outlet. Performance ratings do not include the effects of appurtenances (accessories). Power rating (kw) does not include transmission losses. The Aweighted sound ratings shown have been calculated per AMCA Standard 301. Values shown are for inlet Lwi(A) sound power levels for installation type Bfree inlet, ducted outlet.

12 Fan charts acoustic data GXHB/GXLB5056 Beltdriven, doubleinlet, backwardinclined blades Impeller diameter: 560 mm Flakt Woods Korea certifies that the fans shown hereon are licensed to bear the AMCA Seal. The ratings shown are based on tests and proced ures performed in accordance with AMCA Publication 211 and 311 and comply with the requirements of the AMCA Certified Ratings Program. Performance certified is for Installation type B free inlet, ducted outlet. Performance ratings do not include the effects of appurtenances (accessories). Power rating (kw) does not include transmission losses. The Aweighted sound ratings shown have been calculated per AMCA Standard 301. Values shown are for inlet Lwi(A) sound power levels for installation type Bfree inlet, ducted outlet.

13 Fan charts acoustic data GXHB/GXLB5063 Beltdriven, doubleinlet, backwardinclined blades Impeller diameter: 630 mm Flakt Woods Korea certifies that the fans shown hereon are licensed to bear the AMCA Seal. The ratings shown are based on tests and proced ures performed in accordance with AMCA Publication 211 and 311 and comply with the requirements of the AMCA Certified Ratings Program. Performance certified is for Installation type B free inlet, ducted outlet. Performance ratings do not include the effects of appurtenances (accessories). Power rating (kw) does not include transmission losses. The Aweighted sound ratings shown have been calculated per AMCA Standard 301. Values shown are for inlet Lwi(A) sound power levels for installation type Bfree inlet, ducted outlet.

14 Fan charts acoustic data GXHB/GXLB5071 Beltdriven, doubleinlet, backwardinclined blades Impeller diameter: 710 mm Flakt Woods Korea certifies that the fans shown hereon are licensed to bear the AMCA Seal. The ratings shown are based on tests and proced ures performed in accordance with AMCA Publication 211 and 311 and comply with the requirements of the AMCA Certified Ratings Program. Performance certified is for Installation type B free inlet, ducted outlet. Performance ratings do not include the effects of appurtenances (accessories). Power rating (kw) does not include transmission losses. The Aweighted sound ratings shown have been calculated per AMCA Standard 301. Values shown are for inlet Lwi(A) sound power levels for installation type Bfree inlet, ducted outlet.

15 Fan charts acoustic data GXLF5045 Beltdriven, doubleinlet, forwardcurved blades Impeller diameter: 450 mm Flakt Woods Korea certifies that the fans shown hereon are licensed to bear the AMCA Seal. The ratings shown are based on tests and proced ures performed in accordance with AMCA Publication 211 and 311 and comply with the requirements of the AMCA Certified Ratings Program. Performance certified is for Installation type B free inlet, ducted outlet. Performance ratings do not include the effects of appurtenances (accessories). Power rating (kw) does not include transmission losses. The Aweighted sound ratings shown have been calculated per AMCA Standard 301. Values shown are for inlet Lwi(A) sound power levels for installation type Bfree inlet, ducted outlet.

16 Fan charts acoustic data GXLF5050 Beltdriven, doubleinlet, forwardcurved blades Impeller diameter: 500 mm Flakt Woods Korea certifies that the fans shown hereon are licensed to bear the AMCA Seal. The ratings shown are based on tests and proced ures performed in accordance with AMCA Publication 211 and 311 and comply with the requirements of the AMCA Certified Ratings Program. Performance certified is for Installation type B free inlet, ducted outlet. Performance ratings do not include the effects of appurtenances (accessories). Power rating (kw) does not include transmission losses. The Aweighted sound ratings shown have been calculated per AMCA Standard 301. Values shown are for inlet Lwi(A) sound power levels for installation type Bfree inlet, ducted outlet.

17 Fan charts acoustic data GXLF5063 Beltdriven, doubleinlet, forwardcurved blades Impeller diameter: 630 mm Flakt Woods Korea certifies that the fans shown hereon are licensed to bear the AMCA Seal. The ratings shown are based on tests and proced ures performed in accordance with AMCA Publication 211 and 311 and comply with the requirements of the AMCA Certified Ratings Program. Performance certified is for Installation type B free inlet, ducted outlet. Performance ratings do not include the effects of appurtenances (accessories). Power rating (kw) does not include transmission losses. The Aweighted sound ratings shown have been calculated per AMCA Standard 301. Values shown are for inlet Lwi(A) sound power levels for installation type Bfree inlet, ducted outlet.

18 Dimensions and Weights Without discharge flange and frame L Fan size A L L1 L2 H H2 H1 Q L1 L A H2 Q H H1 B A Fan size A B d shaft A ø d ø d *) If the fan is with plummer block bearings type GTLZ06, 07, 08, 09, 16 or 17 the shaft is 20 mm longer. See also page 60.

19 Dimensions and Weights Without discharge flange and frame, including feet G1 E F2 Fan size E G1 G2 F1 F2 F3 F4 I G2 F3 E F1 F4 G1 E I Fan size B1 B2 d1 B3 B ø d1 B3 B1 B2 B4

20 Dimensions and Weights With discharge flange and flame P1 P Fan size K K1 M N1 N2 P P1 P2 M N M K K1 N1 M P2 A out A out Fan size A out W W1 ø D ø D2 W1 W Weights (kg) Fan size LB HB LF Feet (2 st) Frame (2 st) Discharge flange

21 Dimensions and Weights Casing side plate X1 X11 X2 X13 Y12 ø d Y11 Y1 Y32 Y33 Y23 Y21 Y2 Y3 Y31 X33 X31 X3 X23 X22 Fan size X1 Y1 X11 Y11 Y12 X13 X2 Y2 Y21 X22 X23 Y23 X3 Y3 X31 Y32 X33 Y33 ø d M8 M8 M M8 M8

22 Dimensions and Weights Discharge flange T V Y x 90 Z x X A out Fan size A in A1 A2 A out T V Y Z X n ø D Weights (kg) A in A1 A2 ø D

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24 Ordering key Centrifugal fan LB = centrifugal fan, impeller with backwardcurved blades (Sizes ) HB= centrifugal fan, impeller with backwardcurved blades, reinforced version (Sizes ) LF = centrifugal fan, impeller with forward blades (Sizes ) GXLBabbbcde1 GXHBabbbcde1 Accessories (aa) (b) (ccc) (d) (e) type of accessory 5 = for doubleinlet centrifugal fan fan size GTLZaabcccde 0 = supplied separately 1 = mounted to the fan See also ordering key for special meaning CENTRIMASTER Generation Fan type (a) 5 = doubleinlet beltdrive fan Size (bbb) 045, 050, 056, 063, 071 Version (c) 1 = normal version 8 = sparkproof version Construction (d) 0 = without discharge flange and frame 1 = with discharge flange, without frame 2 = without discharge flange, with frame 3 = with discharge flange and frame (standard for sizes ) Discharge direction (e) 1=0 3=90 5=180 7=270

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26 Accessories Feet GTLZ015ccc00 Feet 2 pc. made of galvanized For sizes Plummer blocks with grease nipples GTLZ075CCC10 Full size welded frame with plummer block bearings for GXHB (Sizes ) GTLZ085CCC10 Full size welded frame with plummer block bearings for GXLB (Sizes ) GTLZ105CCCD0 Extended lubricaters to fan side plate Plummer blocks with grease nipples of type GTLZ07 and 08 are mounted on a welded frame with bearing bracket. The GTLZ07 and 08 in size 050 is supplied with singlerow deepgroove ball bearings secured to the shaft by means of a taper mounting sleeve. GTLZ07 and 08 in sizes are supplied with selfaligning roller bearings. For dimensions see Dimensions and weights, with flange and frame. GXHB have plummer blocks with grease nipples as standard. GTLZ consists of a welded frame with bearing bracket compared to standard version.

27 Accessories Plummer blocks with grease nipples GTLZ175CCC10 Multiple position welded bearing bracket with plummer block bearings for GXHB (Sizes ) GTLZ165CCC10 Multiple position welded bearing bracket with plummer block bearings for GXLB (Sizes ) GTLZ105CCCD0 Extended lubricaters to fan side plate Plummer blocks with grease nipples of type GTLZ 16 and 17 are mounted on a compact welded frame with bearing bracket. Fan with GTLZ16 or 17 is mounted between the beams of the base frame and thereby the overall height of the fan unit can be reduced. The GTLZ 16 and 17 in size 050 is supplied with single row deepgroove ball bearings secured to the shaft by means of a taper mounting sleeve. GTLZ 16 and 17 in sizes are supplied with selfaligning roller bearings. GXHB have plummer blocks with grease nipples and welded bearing bracket of type GTLZ 17 as standard. Plummer blocks with grease nipples GTLZ065CCC10 Compact welded frame with plummer block bearings for GXHB (Sizes ) GTLZ095CCC10 Compact welded frame with plummer block bearings for GXLB (Sizes ) GTLZ105CCCD0 Extended lubricaters to fan side plate Plummer blocks with grease nipples of type GTLZ 06 and 09 are mounted on a compact welded frame with bearing bracket. Fan with GTLZ 06 or 09 is mounted between the beams of the base frame and thereby the overall height of the fan unit can be reduced. The GTLZ 06 and 09 in size 050 is supplied with single row deepgroove ball bearings secured to the shaft by means of a taper mounting sleeve. GTLZ 06 and 09 in sizes are supplied with selfaligning roller bearings. GXHB have plummer blocks with grease nipples as standard. GTLZ consists of a compact welded frame with bearing bracket compared to standard version.

28 Accessories F O N H G ø C L d1 ød2 A B D i J K E M size A B C D E F G H I J M L M N O P d1 d

29 Accessories Flexible connection, outlet, with two flanges G TLZ215ccc00 Flexible connection, o utlet, with two flanges Flexible connection, outlet, with one flange GTLZ255ccc00 Flexible connection, outlet, with one flange A out A out Size A in A1 A2 A out Z X L Size A in A1 A2 A out L

30 Accessories Air flow sensor GTLZ515cccd1 Air flow sensor for GXLB GTLZ525cccd1 Air flow sensor for GXHB Delivery (d) d = 0, Air flow sensor, loose d = 1, Air flow sensor, factory fitted, for right hand version fan d = 2, Air flow sensor, factory fitted, for left hand version fan Air flow sensor GTLZ50, 51, 52 Air flow sensor is used for the measurement of the air flow in doubleinlet GXfans. The method is based on the pressure difference in the air flow sensor. The air flow can be calculated as a function of factor k and the measurement pressure difference Dpm as follows: 1 q = k x p m Air flow sensor with manometer GTLZ545cccd0 Air flow sensor with manometer for GXLB GTLZ555cccd0 Air flow sensor with manometer for GXHB Delivery (d) d = 0, Air flow sensor, loose d = 1, Air flow sensor, factory fitted, for right hand version fan d = 2, Air flow sensor, factory fitted, for left hand version fan Air flow sensor with manometer GTLZ53, 54, 55 Air flow sensor can also be supplied with manometer. The delivery includes air flow sensor, manometer with scale, attach fitting and plastic tubing. For the technical specification, please refer to previous page GTLZ50, 51, 52. where q = air flow(m 3 /s) Δp = measurement pressure difference (Pa) m k = factor according to the fan The corresponding air flow related to the measurement pressure difference can easily be read with a manometer, the scale of which has been made according to the above mentioned formula for a specified fan. A detailed diagram can be supplied upon request. The accuracy is ±10%. If the sensor is calibrated in the final operating conditions of the fan (for example in an air handling unit) an accuracy of ±5% can be achieved. Air flow sensor is supplied with an attach fitting.

31 Accessories Painting GTLZ605cccd0 Painting, external and internal Delivery (d) d = 1 Epoxypowder painting, 60 μm, color tone AM 8043, dark grey, M2 d = 2 Epoxypowder painting, 100 μm, color tone AM8043, dark grey, M3 d = 3 Wet painting in 3 layers, 250 μm, color tone SSG28, light grey Painting Epoxy powder suits for objects exposed to mechanical and chemical attacks. It has good anticorrosive properties and it withstands action by acids, alkalis, greases and solvents. d = 1 Painting 60 μm Fan casing, impeller and bearing brackets as well as accessories are painted with epoxypowder, 60 μm. Color tone is AM 8043, dark grey. Screws in stainless steel. Painting process: alkaline grease removal iron phosphatizing hot water flushing, water temperature 40º C drying in 150º C powder painting 60 μm, in one layer drying in 215º C d =2 Painting 100 μm Fan casing, impeller and bearing brackets as well as accessories are painted with epoxypowder, 100 μm. Color tone is AM 8043, dark grey. Screws in stainless steel. Painting process is the same as in version d = 1, layer thickness is 100 μm in one layer d = 3 Wet painting 250μm in 3 layers Fan casing and bearing brackets as well as accessories are painted with 250 μm epoxy paint in 3 layers. Color tone is JM 8043, dark grey. Impeller is painted with epoxypowder, 100 μm, color tone AM 8043, dark grey. Screws in stainless steel. Stainless steel shaft GTLZ615ccc20 Stainless steel shaft for GXLB GTLZ615ccc30 Stainless steel shaft for GXHB Fan is supplied with a stainless steel shaft.

32 Flaktwoods Korea Ltd ,43 Wonbang B/D 15F Samsungdong, Knagnamgu, Seoul, Korea(135721) T F Gundongri, Jiksaneup, Chonan, Chungchongnamdo, Korea(330811) T F