Development of aviation fuel,
hydraulic and electrical systems.

Electric centrifugal pump units

Electric centrifugal pump units (ECP) comprising a monoblock configuration of a pump and electric motor, are widely used in fuel and other hydraulic systems of aircraft. Several dozens of ECP are mounted on some airplanes just to pump fuel

ECPs are categorized into ECP with 27 V DC motor drive and ECP with 200 V AC 400 Hz motor drive according to the electric motor power supply system.

Glandless electric motor driven pump units may be considered a separate class of electrically driven centrifugal pumps.

They are designed to pump over special fluids in thermal stabilization systems of radio-navigation and optical airborne equipment.

In these units, torque from an electric motor is transmitted to a centrifugal pump by a magnetic coupling through the absolutely sealed bulkhead between the pump cavity filled with working fluid and the dry electric motor cavity.

The magnetic coupling consists of two half-couplings, one of which is secured on the electric motor shaft and the second one on the centrifugal pump shaft.

Basically, ECPs and glandless ECPs are used in civil and military aircraft and helicopters to pump fuel from tank to tank, to supply fuel to the engine-driven pump and for the emergency fuel jettison. The fuel supply range of these pumps is from 500 to 60,000 l/h.

DC ELECTRIC CENTRIFUGAL PUMPS
Designation Voltage Output flow Differential pressure Speed Current Mass Working fluid Dimensions
V l/h kgf/cm2 rpm A kg mm
1029   14000/26000 0,9 5500 83 13,5 fuel 403хØ215
422А   6000/12000 1,2-1,1 10100/7900 42 8,2 fuel 284хØ358
463B   2000/4000 1,25/0,85 8800/5000 22 5,25 fuel 295х145хØ110
463М
495А   4200 0,6/0,7 6100 40 9,0 fuel 370х237хØ175
495B
495-А2   19000 0,6 37 9,0 fuel 385х240хØ175
495F   19000/32000 0,6/0,15 7700/10000 52 9,2 fuel 385х240хØ175
BTsN-1   1000/2500 1,3/0,3 5800 14,5 2,8 petroleum 292хØ110
BTsN-2
VN   3600 0,5 7000 11 5,3 sea water 384х117х152
PN-45   4500 0,55 7800 11,0 4,6 fuel 280х200хØ110
PN-45I   8000 0,45 7800 16,0 4,6 fuel 314х222хØ110
PN-45Ya   8000 0,4 7800 17,5 6,2 toxic chemicals 280х180хØ110
PN-45YaM   8000 0,4 7800 17,5 6,2 toxic chemicals 280х180хØ110
PNV-2А   4000 0,6 7200 11,5 4,4 fuel 286хØ170
PNV-2B   4000 0,6 4800 12,0 4,4 fuel 281х280хØ170
PTsR-1Sh   2100 0,7 7200 7,2 2,85 fuel 254хØ110
EN-36   41000 1,13 5600 151 30,6 fuel 518хØ104
ETsN-0,5   540 0,8 5000 6,5 1,6 fuel 160х67
ETsN-0,5М   540 0,8 5200 7,6 1,6 fuel 160хØ67
ETsN-10   17000/26000 0,7/0,35 6800 62 12,1 fuel 340х192х152
ETsN-104   1000 1,3 5800 14,5 3,85 water/urea 220х210х84
ETsN-104V   1000 0,5 7000 7,0 3,85 water/urea 220х193х110
ETsN-105   1500 2,0 6700 14,5 6,0 ethanol 325хØ145
ETsN-105Zh   1500 2,0 6700 14,5 6,0 NGZh (Skydrol) 325хØ145
ETsN-109   425 1,05 3,5 2,15 LZTK-2/OHZh-7 230хØ78
ETsN-10А   7000/17000 1,85/0,72 6800 82 12,1 fuel 340х192х152
ETsN-10SU   7000/17000 1,0/0,95 6800 61 12,1 fuel 407хØ152
ETsN-11   22500 0,7 7750 80 13,6 fuel 425х210х152
ETsN-111S/h   8000 0,3 9000 15,0 6,2 toxic chemicals 304х217х110
ETsN-117   426 0,65 2,3 LZТК-2
ETsN-119   360 0,25 6000 0,82 0,8 OHZh 43-01 149х86х61
ETsN-11А   15000/22500 1,75/0,7 7750 85 13,6 fuel 425х210х152
ETsN-11А2   22500 0,65 7750 64 13,6 fuel 425х210х145
ETsN-11А2Zh   6000 1,5 7750 64 13,6 NGZh (Skydrol) 425х210х145
ETsN-121   1170 0,75 4000 5,5 6,0 PMS-1,5R
ETsN-121А 110 1482 1,3 4000 1,5 6,0 TEMP-К 110х160х145
ETsN-123   180 0,15 6000 0,24 0,4 FHZhR М11-12N
ETsN-125   180 0,15 6000 0,4 FHZhR М11-12N 110х60х63
ETsN-14   4000 0,6 7200 11,5 5,0 fuel 230хØ85
ETsN-14BM   4000 0,6 4800 12 5,0 fuel 230хØ85
ETsN-14М   4000 0,6 4800 12 5,0 fuel 230хØ85
ETsN-15   26000 2,2 250 28,0 fuel 451х217х175
ETsN-305   500/4500 5,8/4,4 6200 29 11,5 fuel 340хØ120
ETsN-311   4040 0,85 2835 22 8,2 fuel 301хØ233
ETsN-311М   4040 0,85 5575 22 8,2 fuel 301хØ233
ETsN-315   15000/20000 1,98/1,63 6200 90 17,0 fuel 444хØ145
ETsN-315А   15000/20000 1,98/1,63 6200 90 17,0 fuel 444хØ145
ETsN-317А   6000/18000 2,0/1,6 5300 80 12,0 fuel 370х198х175
ETsN-319   1500 1,6 7500 15 3,8 fuel 269хØ160
ETsN-319А   1500 1,6 7500 15 3,8 fuel 269хØ160
ETsN-319М   1500 1,6 7500 15 3,8 fuel 269хØ160
ETsN-40   2100 0,7 7200 7,2 2,85 fuel 255х138х110
ETsN-41   2100 0,7 7200 7,2 2,85 fuel 254х138х110
ETsN-41S   2100 0,7 7200 7,2 2,85 fuel 254х138х110
ETsN-45   10000 0,4 4000 24 7,2 fuel 252х222х192
ETsN-45B   10000 0,4 4000 28 7,2 fuel 252х222х192
ETsN-45Т   10000 0,4 4000 28 7,2 fuel 252х222х192
ETsN-45S   10000 0,4 4000 28 7,2 fuel 252х222хØ192
ETsN-63   3000 3,0/3,8 6400 40 10,0 petroleum 358х160х200
ETsN-65   7000/14000 1,45/0,75 6100 46 10,0 fuel 303хØ189
ETsN-73   60/750 0,78/0,75 6500 3,9 1,4 kerosene/petroleum 153хØ67
ETsN-75B   750 0,8 6300 3,9 1,45 fuel 153хØ67
ETsN-75BM   750 0,8 6300 3,9 1,45 fuel 153хØ67
ETsN-77   6000/8500 1,4/0,8 5300 60 17,5 fuel 471хØ128
ETsN-77А   6000/8500 1,4/0,8 5300 60 17,5 fuel 471хØ128
ETsN-91   3800 0,3 7000 8,5 2,7 fuel 225хØ90
ETsN-91B   3800 0,3 4800 8,5 2,7 fuel 225хØ90
ETsN-91S   3800 0,3 4800 8,5 2,7 fuel 225хØ90
ETsN-93   15000 0,7 6100 44,0 16,5 fuel 413хØ215
ETsN-97   16000/29000 1,6/1,25 4650 110 20,5 fuel 380х300х242
ETsN-99М   29000 1,75 5600 150 25,5 fuel 432х302хØ244
ETsNB   7000/14000 1,45/0,8-0,9 6400 40 9,2 fuel 429хØ145
ETsNB-1   7000/14000 1,45/0,8-0,9 6400 40 9,2 fuel 429хØ145
ETsNМ   7000/14000 1,45/0,8-0,9 6400 40 9,2 fuel 429хØ145
ETsNМ-BМ   7000/14000 1,45/0,8-0,9 6400 40 9,2 fuel 429хØ145
ETsNR-1   2500 0,5 5000 10,0 4,0 fuel 268х143х126
ETsNR-1А   4000 0,5 5000 11,0 3,4 fuel 268х143х126
ETsNT   7000/14000 1,45/0,8-0,9 6400 40 9,2 fuel 429хØ145
AC ELECTRIC CENTRIFUGAL PUMPS
Designation Voltage; frequency Output flow Differential pressure Speed Current Mass Working fluid Dimensions
l/h kgf/cm2 rpm A kg mm
1019 200 V; 400 Hz 90000 5,6 4500 142,0 68,0 fuel 414х624х400
1020 360/500 V; 400 Hz 60000 8,0 70 70,0 water 400х537х400
ETsN-17 200 V; 400 Hz 9000 4,0 7600 16,0 15,0 fuel 255х240х184
ETsN-17S/h 200 V; 400 Hz 9000 4,0 7600 14,0 14,0 toxic chemicals 280х222х184
ETsN-22 200 V; 400 Hz 105000 3,5 120 41,5 fuel 417хØ292
ETsN-23 200 V; 400 Hz 17000 1,4 5600 9,0 12,6 fuel 352х188х158
ETsN-24 200 V; 400 Hz 24000 3,2 35 21,5 fuel 350хØ228
ETsN-25 200 V; 400 Hz 45000 4,5 35 30,0 fuel 445х325
ETsN-35 200 V; 400 Hz 17000 0,7 20,0 fuel 252хØ158
ETsN-83 200 V; 400 Hz 4500/17000 0,7-1,4/0,3 7400 1,5 4,5 fuel 197хØ192
ETsN-85 200 V; 400 Hz 10000 0,8 5600 5,3 8,0 fuel 270хØ192
ETsN-87 200 V; 400 Hz 1200 0,25 7300 0,35 1,8 fuel 169х150х82
ETsN-89 200 V; 400 Hz 1000 1,0 7000 0,95 4,5 water 550хØ110
ETsN-89А 200 V; 400 Hz 1000 1,0 7000 0,95 4,5 water 550хØ110
ETsN-89М 200 V; 400 Hz 1000 1,0 7000 0,95 4,5 water 550хØ110
ETsN-101 200 V; 400 Hz 2100 2,0 5600 LZTK-2/ОHZh-7 335х185хØ150
ETsN-106 200 V; 400 Hz 10200 2,0 7600 30 18,0 carbogal 380х230х200
ETsN-107S/h 200 V; 400 Hz 18000 3,3 7600 18,0 16,0 toxic chemicals 380х182х240
ETsN-108 200 V; 400 Hz 19200 7,0 7600 45 17,0 water/ethylene glycol 385х210х160
ETsN-132 200 V; 400 Hz 4000 0,7 7300 2,5 3,5 fuel
ETsN-134 200 V; 400 Hz 6000/8000 1,51/0,3 5500 8,4 12,6 fuel 386хØ155
ETsN-301 200 V; 400 Hz 6000/8000 1,53/0,53 4300 8,4 12,6 fuel 386хØ155
ETsN-303 200 V; 400 Hz 8200 1,55 5600 12,2 12,3 fuel 390хØ172
ETsN-307 200 V; 400 Hz 8000/8500 1,4/0,8 5400 9,2 12,6 fuel 386хØ155
ETsN-321М 200 V; 400 Hz 65000 1,0 3200 30,0 16,8 fuel 254х160х160
ETsN-321МV 200 V; 400 Hz 65000 1,0 3200 28,0 16,8 fuel 254х160х160
ETsN-321МК 200 V; 400 Hz 65000 1,0 3200 28,0 16,8 fuel 254х160х160
ETsN-323 200 V; 400 Hz 7000 0,45 5400 2,3 4,0 fuel 196хØ193
ETsN-325 200 V; 400 Hz 12000 1,25 5500 8,0 5,8 fuel 234х243х234
ETsN-333 200 V; 400 Hz 13000 0,5 5600 3,95 4,7 fuel 214хØ202
ETsN-333М 200 V; 400 Hz 13000 0,5 5600 3,95 4,7 fuel 214хØ202
ETsN-335 200 V; 400 Hz 22500 0,9 5600 5,5 7,2 fuel 310хØ242
ETsN-335М 200 V; 400 Hz 22500 0,9 5600 5,5 7,2 fuel 310хØ242
ETsN-410 200 V; 400 Hz 8000 2,1 8,0 7,0 fuel 193х399х200
ETsN-411 200 V; 400 Hz 8000 1,1 5450 4,2 7,2 fuel 252хØ120
ETsN-411А 200 V; 400 Hz 8000 1,1 5450 4,2 7,0 fuel 252хØ120
ETsN-412 200 V; 400 Hz 6000 0,4 5500 4,2 4,2 fuel 252хØ150
ETsN-413 200 V; 400 Hz 6000 0,4 5500 4,2 4,2 fuel 248хØ120
ETsNG-5 200 V; 400 Hz 5000 0,65 7300 2,2 2,3 fuel 194хØ90
ETsNG-5-2 200 V; 400 Hz 5000 0,65 7300 2,2 3,8 fuel 160х173х168
ETsNG-5А-2 200 V; 400 Hz 5000 1,0 10800 2,2 2,8 fuel 173хØ160
ETsNG-5-S62 200 V; 400 Hz 5000 0,65 7300 2,2 3,8 fuel 120х228хØ192
ETsNG-10 200 V; 400 Hz 12000 0,7 5500 4,6 3,6 fuel 203хØ120
ETsNG-10-S76 200 V; 400 Hz 12000 0,7 5500 4,0 4,1 fuel 208хØ202
ETsNG-20-2 200 V; 400 Hz 20000/30000 0,84/0,23 5400 7,5 6,5 fuel 255х245хØ198
ETsNG-20-S62 200 V; 400 Hz 25000/30000 0,6/0,23 5400 4,2 6,5 fuel 253х231х192
ETsNG-40 200 V; 400 Hz 25000/40000 1,5/0,8 5500 4,7 8,2 fuel 278хØ185
ETsNG-40-2 200 V; 400 Hz 25000/40000 1,5/0,8 5500 4,3 9,5 fuel 290х269хØ220
ETsNG-40А 200 V; 400 Hz 25000/40000 1,5/0,8 5500 4,7 8,2 fuel 278хØ185
ETsNGR-10 200 V; 400 Hz 10000 0,75 5500 4,0 4,0 fuel 211х187х100
ETsNGR-10А 200 V; 400 Hz 10000 0,8 5,0 2,8 fuel
ETsNGR-15 200 V; 400 Hz 12000 1,31 10800 6,5 3,6 fuel
ETsNGR-20 200 V; 400 Hz 30000 0,67 5400/5660 8,0 5,7 fuel 261х182х145
ETsNGR-40 200 V; 400 Hz 25000/40000 1,5/0,85 5500 15,5 8,6 fuel 215х290х269
ETsNGR-5 200 V; 400 Hz 5000 0,65 7300/7620 2,2 3,2 fuel 187х169х110
ETsNGR-5А 200 V; 400 Hz 5000 0,85 10800 3,3 2,65 fuel 187х169х110
ETsNGR-5А-6 200 V; 400 Hz 5000 0,85 10800 2,3 1,95 fuel 187х169х110
ETsNF-1 200 V; 400 Hz 1000 1,0 7000 1,0 6,5 urea 500х330х260
ETsNF-1B 200 V; 400 Hz 1000 1,0 7000 1,0 5,5 urea 510хØ245
ETsNF-1BU 200 V; 400 Hz 1000 1,0 7000 1,0 5,5 urea 510хØ245
ETsNF-2 200 V; 400 Hz 1000 1,0 7000 1,0 5,5 urea 510хØ245
ETsNF-3 200 V; 400 Hz 1500 0,3 0,7 2,8 urea
ENKG-20 200 V; 400 Hz 5-20 м3 2,1/1,7 12 15 liquefied natural gas
ENML-1 380 V; 50 Hz 2000/7000 0,5 1500 N=0,25 кВт drinking water
ENML-2 380 V; 50 Hz 2000/10000 1,1 1500 N=0,55 кВт drinking water
ENML-3 380 V; 50 Hz 10000/34000 0,7 1500 N=0,75 кВт drinking water
ENML-4 380 V; 50 Hz 20000/50000 1,2 3000 N=1,1 кВт drinking water
ENML-5 380 V; 50 Hz 6000/15000 0,7 1500 N=0,75 кВт drinking water
ENML-6 380 V; 50 Hz 2000/9600 0,5 1500 N=0,75 кВт drinking water
ENML-7 380 V; 50 Hz 12000 1,0 1500 N=0,75 кВт drinking water
EPN-2 200 V; 400 Hz 1400 31±10 fuel
ETsNH 200 V; 400 Hz 5000/15000 1,5/1,15 8-9 18 vinylin 220х380х200