Type series booklet CTI-1700/00 [12-2008] MZ, MA Liquid ring pumps 1 Fields of application Multi-stage, horizontal liquid ring pumps, with self-priming capacity. MZ and MA pumps are used for pumping of clean slightly aggressive fluids, not containing abrasive or solid particles. The MZ and MA Series of KSB ITUR may pump a wide range of fluids, such as: - Water - Demineralized water - Water with oil - Ultra filtered water - Sea water - Gas oil - Acids - Solvents 2 Operating Data 50 Hz 60 Hz Capacity, max. m 3 /h 21 24 Head, max. m 140 172 Operating temp., max. ºC 90 (1) 90 (1) Operating temp., min. ºC -5-5 Operating pressure, max. bar 16 16 Operating speed, max. rpm 1500 1800 (1) With material variant 01 / 120 ºC with variant 03 All data given in this document are for fully standard construction. For any specific application beyond those limits, please consult. 3 Design Radially-split horizontal multistage pump casing. Radial impulsion and suction flanges and liquid ring impellers. Pump for horizontal installation. 4 Designation 5 Materials Type series: MZ, MA Pump size Number of stages MZ 41 / 3 Material variant Part Description REF. 01 03 Suction Casing 106 JL1040 (1) RG-5 Discharge Casing 107 JL1040 (1) RG-5 Shaft 210 AISI-316L (2) AISI-316L (2) Impeller(s) 230 SN-16 SN-16 Bearing housing 350 JL1040 (1) JL1040 (1) Friction bearing bush 545 RG-7 RG-7 (1) Grey cast iron to EN 1561 = GJL-250 (2) Hot Rolled chrome nickel molybdenum steel 1.4435
6 Components 6.1 Shaft Seal Single mechanical seal or packing. 6.2 Drive IEC frame electric motor. 6.3 Bearings / Lubrications MZ series with ball bearing at the drive end and friction bearings at non-drive end. MA series with ball bearings on both sides of the shaft. The MA series also includes friction bearings inside the pump. Ball bearings are greased for life. Friction bearings are selflubricated by pumped fluid. 6.4 Coupling 6.5 Base plate Sectional Steel, welded or U-rails for complete unit (pump and motor). Close-clouped units are supplied with two U-rails for easier installation. 7 Certification - ATEX Certified quality management according to ISO-9001. This series can be supplied as ATEX compliant. Flexible, rubber plug type coupling without spacer. Coupling guard: metallic coupling guard is supplied as standard. 2
8 Selection charts MZ 50 Hz MZ 60 Hz 3
MA 50 Hz MA 60 Hz 4
9 Benefits at a Glance MA Maintenance free ball bearings greased for life Multi stage pump MZ Over dimensioned bearings for reliable long service Mechanical seal, uncooled and maintenance free, gland packing can be supplied as option Multi stage pump Maintenance free ball bearings greased for life Mechanical Seal, uncooled and maintenance free, gland packing can be supplied as option Over Dimensioned bearings for reliable long service 5
10 Technical data MA PUMP SIZES (1) Units MA-20 MA-25 MA-32 MA-40 MA-50 Bearing bracket (packing) 51-15 51-20 51-24 51-28 Bearing bracket (mechanical seal) 51-15/2 51-20/2 51-20/3 51-24/6 51-28/8 General Minimum number of impellers 1 1 1 1 1 Maximum number of impellers 4 6 6 6 4 Impeller Ø mm 104 113 130 150 164,6 Vane width mm 10 12 12 15,5 25 Shaft Ø Under impeller mm 17 24 26 30 Under ball bearings mm 12 17 20 25 At coupling mm 12 17 20 25 Bearings Ball bearing (drive end) 6301 2RS C3 6303 2RS C3 6304 2RS C3 6305 2RS Ball bearing (non drive end) 6301 2RS C3 6303 2RS C3 6304 2RS C3 6305 2RS Friction bearing (non drive Packing 13-05/015/02 13-05/020/02 13-05/024/03 13-05/028/01 end) M. Seal 13-16/11 13-05/024/07 13-05/024/02 13-05/026/01 13-05/030/01 Friction bearing (drive end) Packing 13-05/015/01 13-05/020/01 13-05/024/03 13-05/028/01 M. Seal 13-16/10 13-05/024/06 13-05/024/01 13-05/026/01 13-05/030/01 Motor frame See point 12 Drive rating Consult KSB ITUR Shaft seal Option 1 2 x Single ITUR 5H2 Mechanical seal Size mm 16 20 20 25 28 Option 2 2x Gland Packing Size mm 6x917 6 x 1317 6 x 1317 6 x 1700 8 x 1810 (1) General standard data. Can be modified in particular cases. MZ PUMP SIZES (1) Units MZ-11 MZ-21 MZ-31 MZ-41 MZ-51 Bearing bracket (packing) 500Z-51 100Z-51 200Z-51 300Z-51 400Z-51 Bearing bracket (mechanical seal) 500Z-51/1 General Minimum number of impellers 1 1 1 1 1 Maximum number of impellers 4 4 4 3 2 Max. impeller Ø mm 104 113 130 150 164,6 Vane width mm 10 12 12 15,5 25 Shaft Ø Under impeller mm 15 18 24 28 Under ball bearings mm 12 15 20 25 At coupling mm 12 15 (2) 14 20 25 Bearings Ball bearing (drive end) 6301 2RS C3 6302 2RS C3 6304 2RS C3 6305 2RS Friction bearing (non Packing drive end) M. Seal 13-00/015/02 13-00/018/02 13-05/024/05 13-05/028/03 Friction bearing (drive Packing 13-05/028/01 13-00/015/03 13-05/018/01 13-05/024/04 end) M. Seal 13-05/028/03 Motor frame See point 12 Drive rating Consult KSB ITUR Shaft seal Option 1 1 x Single ITUR 5H2 Mechanical seal Size mm 15 18 22 25 Option 2 1 x Gland packing Size mm 6 x 400 6 x 650 6 x 1183 (1) General standard data. Can be modified in particular cases. (2) In case of mechanical seal, 14 6
11 Cross Section drawings MA Cross sectional C-1282 901.1 901.2 433.1 106 484 545.1 108.1 230 940.1 (a) 545.2 (a) 108.2 108.3 107 905 554 920 411.2 903.2 360.1 923 320 350 471 400.1 411.1 903.1 400.2 901.1 724 400.1 903.1 411.1 920.1 106 545.1 230 210 484 433.2 471 901.2 MZ Cross sectional C-1280 (a) 545.2 350 320 360.2 901.1 (a) 108.1 108.2 108.3 411.4 903.4 107 940.2 554.2 920.4 902 400.2 210 932 360 901.3 920.2 554.1 903.2 411.2 905 940.1 400.3 545.3 411.3 903.3 484 433 471 901.2 350 320 940.2 7
MA, MZ Detail with packing 461 452 453 No. Denomination No. Denomination No. Denomination 106 Suction casing 433 Mechanical seal 800 Motor 107 Discharge casing 452 Packing gland 844 Rigid coupling 108 Stage casing 453 Gland nut 901 Hexagon head screw 210 Shaft 461 Packing 902 Bolt 230 Impeller 471 Mechanical seal cover 903 Plug 320 Bearing 484 Fixing washer 904 Setscrew 341 Pedestal 525 Spacer sleeve 905 Tie bolt 350 Bearing housing 545 Friction bearing bush (a) 920 Nut 360 Bearing cover 554 Flat washer 923 Bearing nut 400 Gasket 636 Grease nipple 932 Circlip 411 Circular gasket 724 Flange 940 Key (a) Only for two or more stages 8
12 Dimensions MA BARESHAFT Pump Weight Size (kg) DNs DNd A B C d D E F G H1 H2 H3 J K L l M N S t u MA - 20 11 20 20 359 118 90 12 117 38 127 165 180 90 90 278 78 115 23 150 12 14 13,5 4 MA - 25 18 25 25 377 120 112 17 110 40 148 186 210 100 110 293 110 160 23 196 14 14 19 5 MA - 32 21 32 32 403 128 125 17 112 40 150 190 220 100 120 308 110 160 26 196 14 14 19 5 MA - 40 35 40 40 505 158 160 20 152 55 144 220 264 132 132 370 110 160 23 200 18 14 22 5 MA - 50 49 50 50 582 185 175 25 179 55 175 250 272 132 140 436 130 180 29 220 18 14 27,5 6 All dimensions in mm MA GROUP WITH MOTOR Pump Size MA - 20 MA - 25 MA - 32 MA -40 MA - 50 Motor Frame a b1 b2 c e E f h h3 L1 L2 L3 L5 S T x 500 300 90 260 300 118 50 151 245 155 80 274 600 400 100 61 18 6 4 80 112 320 360 274 128 50 150 285 165 620 390 115 64 18 6 4 90 331 80 125 320 360 274 128 50 150 285 165 620 390 115 75 18 6 4 90 331 620 390 115 80 274 160 320 360 158 50 187 329 197 90 331 770 520 125 100 372 115 18 6 4 80 274 90 320 360 331 337 197 770 520 125 100 175 372 185 50 22 126 18 6 4 112 393 132 350 390 453 342 202 1000 700 150 All dimensions in mm 9
MZ BARESHAFT Pump Weight Size (kg) DNs DNd A B C d D E F G H1 H2 H3 J K L l S t u MZ - 11 11 1" 1" 258 95 114 12 90 50 85 206 210 90 90 12 115 150 25 14 13,5 4 MZ - 21 14 1" 1" 261 94 122 15 90 62 106 227 220 100 110 15 160 196 30 14 17 5 MZ - 31 17 1 ¼ 1 ¼ 288 113 121 15 100 62 106 237 235 100 120 15 160 196 30 14 17 5 MZ - 41 27 1 ½ 1 ½ 369 154 156 20 118 165 211 380 290 132 132 18 160 200 40 14 22 5 MZ - 51 33 2" 2" 426 192 182 25 125 210 250 441 307 132 140 15 160 200 40 14 27,5 6 All dimensions in mm MZ GROUP WITH MOTOR 10 Pump Size MZ - 11 MZ - 21 MZ - 31 MZ - 41 MZ - 51 Motor Frame a b 1 b 2 c f h h 1 h 2 h 3 L 1 L 2 L 3 L 5 S T x 95 260 300 80 274 163 275 245 90 155 500 300 100 32 18 6 4 500 300 80 94 260 300 274 167 285 255 110 165 100 14 18 6 4 90 331 600 400 500 300 80 113 260 300 274 175 300 265 120 165 100 31 18 6 4 90 331 600 400 80 274 154 320 360 90 331 215 355 315 132 197 770 520 125 31 18 6 4 100 372 80 274 90 320 360 331 372 322 197 770 520 125 4 192 234 140 35 18 6 100 372 112 393 132 350 390 453 377 327 202 880 580 150 6 All dimensions in mm
13 Coating 1 coat of 40 microns thickness of blue RAL 5010 paint. Painted surface maximum temperature 70 ºC. 14 Recommended spare parts stock for two years continuous operation Number of pumps (including stand-by pumps) Part Nº Description 1-2 3 4 5 6-7 8-9 10 and more --- Gasket (set) 2 3 4 5 6 7 90% 433 Mechanical seal (set) 2 3 4 5 6 7 90% 461 Packing (set) 2 3 4 5 6 7 90% 320 Bearing (set) 1 1 2 2 2 3 30% 545 Friction bearing bush (set) 1 1 2 2 3 4 50% --- Coupling Flexible (set) 1 1 2 2 2 3 30% 932 Circlip (set) 1 1 2 2 2 3 30% 940 Key (set) 1 1 2 2 2 3 30% 210 Shaft 1 1 2 2 2 3 30% 230 Impeller (set) 1 1 2 2 2 3 30% 844 Coupling 1 1 2 2 2 3 30% 11
CTI-1700/00 [12-2008] Subject to technical modifications without prior notice KSB ITUR Spain, S.A. P.O. Box 41 20800 ZARAUTZ (Gipuzkoa) Spain Tel.: +34 943 899 899 Fax +34 943 130 710 www.ksb-itur.es