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4SWS Series

Deep Well Submersible Pump

Introduction

The 4SWS series deep well submersible pump is a wet type submersible pump, and it is more reliable than a dry type despite of its slightly higher price.

Advantage
1. This is an oil-filled submersible pump indicating that the submersible motor is filled with lubrication oil, while all the spigots are sealed with oil-resistant O-rings. On the other hand, the shaft extension is fitted with mechanical seal and pump bowl to guarantee stable sealing of the motor.

2. For our deep well submersible pump, its oil-filled submersible motor has a simple structure.

3. Since our stainless steel submersible pump is oil-filled, the stator, rotor and bearing will work in the lubrication oil.

4. There is a rubber cup at the bottom of motor, and the motor base, after placed in the rubber cup, is fixed inside the pump casing by a snap ring, thus forming a pressure holding device. When oil pressure inside the motor decreases, the rubber cup will expand under the effect of water pressure so as to keep the internal pressure of the motor comparable with water pressure. In this way, other sealing components won’t face too much burden, and this is very meaningful in improving the sealing reliability.

Parameters

Technical Data of 4SWS2-XX Deep Well Submersible Pump
Model Stage Power Delivery (n≈2850r/min) Size
kW HP m3/h 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3 Pump length (mm) 1-phase motor length (mm) 3-phase motor length (mm) Discharge DN (inch)
L/min 0 5 10 15 20 25 30 35 40 45 50
4SWS2-38 9 0.37 0.5 H (m) 49 48 45 43 42 40 39 38 34 30 25 371 397 1 1/4
4SWS2-56 13 0.55 0.75 70 69 68 66 62 60 58 52 49 42 36 455 417 397 1 1/4
4SWS2-77 18 0.75 1 103 97 92 90 89 85 80 74 68 60 50 560 442 432 1 1/4
4SWS2-98 23 1.1 1.5 122 121 120 116 111 107 100 95 88 76 66 665 472 452 1 1/4
4SWS2-118 28 1.5 2 151 150 148 141 138 130 122 113 103 91 78 770 502 492 1 1/4
4SWS2-139 33 1.5 2 178 174 170 168 160 152 143 133 111 109 93 875 502 492 1 1/4
4SWS2-169 40 2.2 3 215 210 204 199 191 185 178 165 151 133 113 1022 548 548 1 1/4
4SWS2-203 48 2.2 3 258 251 246 240 232 223 212 199 180 158 134 1190 548 548 1 1/4
Technical Data of 4SWS3-XX Deep Well Submersible Pump
Model Stage Power Delivery (n≈2850r/min) Size
kW HP m3/h 0 0.6 1.2 1.8 2.4 3 3.6 4.2 Pump length (mm) 1-phase motor length (mm) 3-phase motor length (mm) Discharge DN (inch)
L/min 0 5 10 15 20 25 30 35
4SWS3-28 6 0.37 0.5 H (m) 38 36 35 33 31 28 23 16 308 397 1 1/4
4SWS3-41 9 0.55 0.75 57 54 52 50 46 41 34 24 371 417 397 1 1/4
4SWS3-55 12 0.75 1 76 73 70 67 62 55 46 33 434 442 432 1 1/4
4SWS3-69 15 1.1 1.5 95 91 87 83 78 69 57 41 497 472 452 1 1/4
4SWS3-83 18 1.1 1.5 114 109 105 100 93 83 68 49 560 472 452 1 1/4
4SWS3-101 22 1.5 2 139 133 128 122 114 101 83 60 644 502 492 1 1/4
4SWS3-115 25 1.5 2 158 152 146 138 129 115 95 68 707 502 492 1 1/4
4SWS3-132 29 2.2 3 184 175 167 158 148 132 107 77 791 548 548 1 1/4
4SWS3-153 33 2.2 3 208 200 192 182 171 153 125 89 875 548 548 1 1/4
4SWS3-180 39 3 4 246 236 227 216 202 180 148 106 1001 592 1 1/4
4SWS3-203 45 3 4 284 274 261 245 230 203 165 123 1127 592 1 1/4
4SWS3-240 52 4 5.5 328 315 303 288 269 240 197 141 1274 657 1 1/4
Technical Data of 4SWS8-XX Deep Well Submersible Pump
Model Stage Power Delivery (n≈2850r/min) Size
kW HP m3/h 0 1.8 3.6 5.4 7.2 9 10.8 Pump length (mm) 1-phase motor length (mm) 3-phase motor length (mm) Discharge DN (inch)
L/min 0 30 60 90 120 150 180
4SWS8-20 5 0.75 1 H (m) 30 28 26 24 21 17 12 361 442 432 2
4SWS8-27 7 1.1 1.5 42 39 36 33 29 24 17 423 472 452 2
4SWS8-39 10 1.5 2 60 55 51 48 42 35 24 516 502 492 2
4SWS8-48 12 2.2 3 74 67 62 57 50 43 28 578 548 548 2
4SWS8-60 15 2.2 3 90 84 78 72 65 54 36 671 548 548 2
4SWS8-70 18 3 4 108 100 93 85 76 63 44 764 592 2
4SWS8-80 21 4 5.5 126 117 108 99 89 73 51 857 657 2
4SWS8-96 25 4 5.5 150 140 130 117 105 86 60 981 657 2
4SWS8-117 30 5.5 7.5 181 168 155 142 127 105 73 1136 757 2
4SWS8-143 37 5.5 7.5 223 207 193 173 155 130 89 1353 757 2
Technical Data of 4SWS14-XX Deep Well Submersible Pump
Model Stage Power Delivery (n≈2850r/min) Size
kW HP m3/h 0 2.1 4.2 6.3 8.4 10.5 12.6 14.7 16.8 18.9 Pump length (mm) 1-phase motor length (mm) 3-phase motor length (mm) Discharge DN (inch)
L/min 0 35 70 105 140 175 210 245 282 315
4SWS14-20 5 1.5 2 H (m) 31 30 29 28 26 24 22 19 15 6 439 502 492 2
4SWS14-27 7 2.2 3 43 42 41 40 38 35 31 27 20 8 532 548 548 2
4SWS14-39 10 3 4 62 61 60 59 55 51 47 39 28 12 671 592 2
4SWS14-48 13 4 5.5 81 79 74 70 66 60 54 48 35 16 811 657 2
4SWS14-68 18 5.5 7.5 112 110 106 101 95 88 78 66 48 21 1043 757 2
4SWS14-95 25 7.5 10 155 151 148 139 131 121 109 93 70 31 1369 892 2
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