Product Introduction 3300.12 / 2 - 85 G3 Submersible Motor Pumps Application 200 mm to 350 mm For pumping of clean, cold water, non corrosive and non abrasive to the pumpset material, irrigation, urban & rural drinking water supply, pressure boosting, air-conditioning systems, industrial plants, cooling water systems, fountains, sea water desalination works, mine dewatering etc. Design Submersible pumpset is a compact unit made up of a submersible pump & a submersible motor with shafts connected by a sleeve and operates beneath the surface of water. This maintenance-free pumpset is suspended vertically from raising main when installed. Submersible Pumps are single or multistage centrifugual pumps with radial or mixed flow impellers. The casings of the radial flow impeller pumps are clamped together by flat steel hook bolts, whereas that of mixed flow impeller pumps by studs. Between the pump & the motor is the suction casing. A nonreturn valve is in-built and fitted at the pump discharge end. Submersible motors are water filled, water lubricated squirrel cage type. The axial thrust generated by the pump is absorbed by a thrust bearing fitted at the bottom of the motor. The diaphragm below the thrust bearing compensates the overpressure which arises as a result of the thermal expansion of the water filled, when the temperature of the winding rises. 3 phase submersible motors are available up to 110 kW, 2 pole, and voltage 380 to 420 V, 50 Hz. Motors for other voltages & 60 Hz. can be supplied on request. Bearings : The pump is provided with radial bearings. The motor has radial as well as axial thrust bearings. All the bearings are water lubricated and protected to a large degree against the ingress of sand of by suitable structural elements. Shaft seal : The motor is sealed by radial seal rings to avoid mixing of well water and the fill water. Mechanical seals can be provided on request. Discharge connection : Threaded non-return valve is fitted at discharge end of the pumpset having sizes form G3" to G8" ( 75 to 200 mm). Operating data Capacity Total head Motor rating Speed Frequency Supply voltage Up to 900 m3 / hr. Up to 300 mtrs. Up to 110 kW 2900 rpm 50 Hz Up to 420 volts Designation Pump U P H 293 / C 20 10 Type of Impeller (U= Radial flow) (B= Mixed flow) Complementary letter Min. borehole dia. in inches (H= 8", N= 10", T= 12", V=14") Hydraulic reference no. No. of stages Motor Min. bore hole dia. in inches Motor ref. no. Construction variant Power in HP No. of phases H B 3 Family Curves : 50 Hz - 2900 rpm 400 BPN 374 BPN 394 300 1000 800 200 600 BPN 425 400 BQTs 466 100 80 BPVs 525 H (m) 200 BST 435 BPN 393 BPH 373 BPH 384 40 BPH 333 UPH 293 60 H (ft) 100 80 20 60 40 8 20 6 30 7 8 40 10 50 12 60 14 16 18 20 80 100 Q (l / s) 120 30 Radial flow pump Description 106 108 143 171 211 232 355 75-9 752 756 759 Suction casing Stage casing Suction strainer Diffuser Pump shaft Impeller Discharge brg. body Valve body Valve seat Valve spring Valve dish 60 100 600 140 800 200 1000 240 Material Part C.I. C.I. M.S. Gal. Bronze** Cr.St. Bronze C.I. C.I. C.I. Spr. St. C.I. 106 112 143 211 232 502 75-9 752 756 759 Description Suction casing Stage bowl Suction strainer Pump shaft Impeller Wearing ring Valve body Valve seat Valve spring Valve dish Material C.I. C.I. M.S. Gal Cr.St. Bronze Bronze C.I. C.I. Spr. Steel C.I. Motor : 250 mm Description Material Part 145 160 271 354 382 384 387 388 392 421 545 81-59 818 823 849 Adaptor Cover Sand guard Thrust brg. housing Bearing body Thrust brg. plate Thrust brg. segments Counter th. brg. plate Brg. segment carrier Oil seal Bearing bush Stator Rotor Diaphragm Coupling sleeve C.I. C.I. Bronze C.I. C.I. Carbon* Cr. St.* Bronze C.I. St. / Rubber Bronze Steel Steel Rubber Cr. St. 384 387 Thrust brg. plate Thrust brg. segments Bz. / FerroAsb. Bronze@ * Up to 41 HP 60 400 Mix flow pump Motor : 200 mm Part 200 300 Q (m3 / hr) 40 Material of construction Part 160 @ Above 41 HP @ 145 160 271 354 382 384 387 388 392 421 545 81-59 818 823 849 Description Adaptor Cover Sand guard Thrust brg. housing Bearing body Thrust brg. plate Thrust brg. segments Counter th. brg. plate Brg. segment carrier Oil seal Bearing bush Stator Rotor Diaphragm Coupling sleeve Material C.I. C.I. Bronze C.I. C.I. Bz / Ferro Asb. Bronze Bronze C.I. St. / Rubber Bronze Steel Steel Rubber Cr. St. Note : For motors of 250 mm upto 85 HP the oil seal is in the pump. Above 85 HP it is in the motor. ** UPHA - Integral C.I. Diffuser Submersible Motor Pumps Sectional drawing & list of components Radial Flow 75-9 756 759 752 355 112 108 171 232 211 143 106 849 271 421 145 382 545 818 81-59 382 545 388 384 387 354 392 823 160 Mix Flow Submersible Motor Pumps Deep Well Installation 6 3 4 7 5 2 1 2 3 4 5 6 7 Hh Ht He T 1 Submersible pumpset Riser pipe Support clamps Control Valve Cable Pressure gauge Starter Legend: T = Depth of well He = Installation depth Hh = Stationary water level Ht = Lowest water level Note: He-Ht = at least 0.5m It must be ensured that the unit is freely suspended from the riser pipe and does not touch the bottom of the sump ! KSB PUMPS LIMITED Works : Pimpri Chinchwad Coimbatore Sinnar Vambori - Irrigation and Process Division, Mumbai-Pune Road, Pune - 411 018. - Power Projects Division, D - II Block, MIDC, Pune - 411 019. - Valves Division, 151, NSN Palayam Post, Mettupalayam Road - 641 031. - Water Pumps Division, Plot No E-3 & E-4, MIDC Sinnar, Malegaon, Dist. Nashik- 422 113. - Foundry Division, Ahmednagar - 413 704. Telephone No. (020) 2710 1000 (020) 2740 9100 (0422) 246 8222 (02551) 230252 / 53 / 55 / 56 (02426) 272534, 272528, 272074 Fax (020) 2742 6000 (020) 2747 0890 (0422) 246 8232 (02551) 230254 (02426) 272043 Regd. Office : Mumbai - 126, Maker Chambers III, Nariman Point - 400 021. (022) 6658 8787 (022) 6658 8788 Zonal Offices : Chennai Kolkata Mumbai NOIDA - (044) 2235 2571-2, 2235 5673 (033) 2287 0473, 2290 0117 (022) 6658 8787 (0120) 254 1091-93, 254 1501-3 (044) 2235 2749 (033) 2287 0588 (022) 6658 8788 (0120) 255 0567 Guindy House, 2nd Floor, 95, Anna Salai - 600 032. 30, Circus Avenue, 2nd Floor - 700 017. 126, Maker Chambers III, Nariman Point - 400 021 "KSB House", A-96, Sector IV, NOIDA 201 301, Dist. Gautam Budh Nagar, U. P. Branch Offices : • Ahmedabad - (079) 26579610 / 11 • Aurangabad - (0240) 2351440, 2342447 • Bangalore - (080) 23491806, 23493925 • Baroda - (0265) 2330532, 2333226 • Bhubaneswar - (0674) 2558497, 2553061 • Chandigarh - (0172) 2640771, 2652121 • Hubli - (0836) 2232244 • Indore - (0731) 2529478 • Jaipur - (0141) 2224554, 2224904 • Jamshedpur - (0657) 2317129, 2317130 • Lucknow - (0522) 2635203, 2635597 • Nagpur - (0712) 2236889 • Pune - (020) 25431258 / 59 / 60 • Raipur - (0771) 4062556, 2583921 • Secunderabad - (040) 27001724, 27003696 Service Stations : Odhav NOIDA Howrah Chennai - Shed 22, G.V.M. Estate, Ahmedabad - 382 410. "KSB House" A- 96, Sector IV, 201 301. 142/1, Foreshore Road, Near Ramkrishnapur Launchghat - 711 101. No. 4 (old no. 18) Chakrapani Road, Guindy, 600 032. (079) 22900372 (0120) 2541091-93 (033) 26382909 (044) 22550704 Mktg. Serv./12-11/2000 Technical matter. Subject to change without notice. Manufactured in technical collaboration with KSB Aktiengesellschaft., Germany by :
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