
4" series · stainless steel
Kurlar KPS 4"
4" stainless steel borehole pumps — up to 18 m³/h and 479 m
Manufacturer: Kurlar
Kurlar KPS 4" are AISI 304 stainless steel submersible pumps for 4" boreholes. Their corrosion-resistant build gives a long, reliable life in irrigation, industrial water supply and groundwater extraction, and they are easy to maintain. The series has 4 sub-series with 43 models in total, with flow up to 18 m³/h and head up to 479 m.
- series
- 4
- models in the tables
- 43
Price and delivery time on request. Working hours: Mon–Fri, 8:30–17:00
Features
What Kurlar KPS 4" offers
- Long-lasting and reliable
- High performance
- Easy maintenance and assembly
- NEMA standard motor connection
- Wear-resistant, water-lubricated bearings
- Works vertically and horizontally
Applications
Where it is used
- Water supply from boreholes
- Agricultural irrigation
- Industrial water supply
- Groundwater extraction
Technical data
Kurlar KPS 4" specifications
Key data
- Pump diameter
- 98 mm with cable guard
- Motor diameter
- 4"
- Maximum flow rate
- 18 m³/h
- Maximum head
- 479 m
- Power
- 0.55–7.5 kW
- Speed
- 2900 rpm
- Outlet size
- 1¼" (KPS 4-3), 1½" (KPS 4-5), 2" (KPS 4-8, KPS 4-14)
- Outlet thread
- BSP or NPT
- Shaft
- 11 mm hexagonal (KPS 4-3, 4-5), 12.7 mm (KPS 4-8), 16 mm (KPS 4-14)
Operating conditions
- Max. water temperature
- 50 °C
- Max. sand content
- 50 g/m³ (KPS 4-3, 4-5), 150 g/m³ (KPS 4-8, 4-14)
- Max. immersion depth
- 300 m
- Protection rating
- IP68
- Installation
- vertical and horizontal
Materials
- Impellers
- AISI 304
- Diffusers
- AISI 304
- Outlet
- AISI 304
- Suction case
- AISI 304
- Diffuser cover (stage)
- AISI 304
- Strainer
- AISI 304
- Coupling
- AISI 304
- Non-return valve
- AISI 304
Series
| Series | Flow rate | Stages | Power |
|---|---|---|---|
| KPS 4-3 | up to 4.5 m³/h | 9–75 | 0.55–5.5 kW |
| KPS 4-5 | up to 6 m³/h | 6–75 | 0.55–7.5 kW |
| KPS 4-8 | up to 11 m³/h | 5–50 | 0.75–7.5 kW |
| KPS 4-14 | up to 18 m³/h | 5–25 | 1.5–7.5 kW |
Parts and materials
| № | Part | Material |
|---|---|---|
| 1 | Outlet | AISI 304 |
| 1.1 | Shaft bush | NBR |
| 1.2 | Shaft | AISI 304 |
| 1.3 | Impeller neck ring | NBR |
| 2 | Clamping strap | AISI 304 |
| 2.1 | Impeller | AISI 304 |
| 2.2 | Diffuser | AISI 304 |
| 2.3 | Suction case | AISI 304 |
Performance
KPS 4-313 models
| Parameters | Q (m³/h) → H (m) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | HP | kW | Motor | Stages | G | L mm | kg | 0 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 |
| KPS 4-3/9 | 0.75 | 0.55 | 4" | 9 | 1¼" | 388 | 3.8 | 56 | 52 | 50 | 45 | 41 | 34 | 30 | 23 |
| KPS 4-3/12 | 1 | 0.75 | 4" | 12 | 1¼" | 454 | 4.6 | 76 | 69 | 64 | 60 | 53 | 45 | 40 | 31 |
| KPS 4-3/15 | 1.5 | 1.1 | 4" | 15 | 1¼" | 520 | 5.4 | 96 | 83 | 80 | 75 | 66 | 57 | 50 | 38 |
| KPS 4-3/18 | 1.5 | 1.1 | 4" | 18 | 1¼" | 586 | 6.2 | 115 | 100 | 96 | 90 | 80 | 68 | 60 | 46 |
| KPS 4-3/22 | 2 | 1.5 | 4" | 22 | 1¼" | 674 | 7.3 | 141 | 122 | 117 | 110 | 97 | 83 | 73 | 52 |
| KPS 4-3/25 | 2 | 1.5 | 4" | 25 | 1¼" | 740 | 8.1 | 159 | 138 | 133 | 125 | 110 | 94 | 83 | 59 |
| KPS 4-3/29 | 3 | 2.2 | 4" | 29 | 1¼" | 828 | 9.1 | 184 | 160 | 155 | 145 | 128 | 110 | 97 | 69 |
| KPS 4-3/33 | 3 | 2.2 | 4" | 33 | 1¼" | 916 | 10.2 | 210 | 183 | 176 | 165 | 146 | 125 | 110 | 78 |
| KPS 4-3/39 | 4 | 3 | 4" | 39 | 1¼" | 1048 | 11.8 | 250 | 216 | 208 | 195 | 172 | 147 | 130 | 92 |
| KPS 4-3/45 | 4 | 3 | 4" | 45 | 1¼" | 1180 | 13.4 | 287 | 249 | 240 | 225 | 199 | 170 | 150 | 106 |
| KPS 4-3/52 | 5.5 | 4 | 4" | 52 | 1¼" | 1334 | 15.2 | 333 | 288 | 277 | 260 | 230 | 196 | 173 | 123 |
| KPS 4-3/60 | 5.5 | 4 | 4" | 60 | 1¼" | 1510 | 17.4 | 383 | 332 | 320 | 300 | 265 | 227 | 200 | 142 |
| KPS 4-3/75 | 7.5 | 5.5 | 4" | 75 | 1¼" | 1875 | 21.8 | 479 | 413 | 400 | 375 | 331 | 284 | 249 | 177 |
KPS 4-512 models
| Parameters | Q (m³/h) → H (m) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | HP | kW | Motor | Stages | G | L mm | kg | 0 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 |
| KPS 4-5/6 | 0.75 | 0.55 | 4" | 6 | 1½" | 322 | 3 | 37 | 32 | 30 | 28 | 26 | 24 | 21 | 18 |
| KPS 4-5/8 | 1 | 0.75 | 4" | 8 | 1½" | 366 | 3.5 | 50 | 41 | 38 | 35 | 34 | 32 | 28 | 24 |
| KPS 4-5/12 | 1.5 | 1.1 | 4" | 12 | 1½" | 454 | 4.6 | 76 | 63 | 60 | 56 | 51 | 48 | 42 | 36 |
| KPS 4-5/17 | 2 | 1.5 | 4" | 17 | 1½" | 564 | 6 | 107 | 86 | 80 | 78 | 71 | 66 | 58 | 51 |
| KPS 4-5/21 | 3 | 2.2 | 4" | 21 | 1½" | 652 | 7 | 133 | 105 | 100 | 90 | 85 | 80 | 71 | 63 |
| KPS 4-5/25 | 3 | 2.2 | 4" | 25 | 1½" | 740 | 8.1 | 156 | 130 | 121 | 112 | 105 | 97 | 85 | 75 |
| KPS 4-5/33 | 4 | 3 | 4" | 33 | 1½" | 916 | 10.2 | 208 | 170 | 160 | 150 | 139 | 128 | 114 | 99 |
| KPS 4-5/38 | 5.5 | 4 | 4" | 38 | 1½" | 1026 | 11.6 | 241 | 195 | 183 | 172 | 162 | 150 | 131 | 113 |
| KPS 4-5/44 | 5.5 | 4 | 4" | 44 | 1½" | 1158 | 13.2 | 278 | 225 | 210 | 195 | 185 | 170 | 153 | 132 |
| KPS 4-5/52 | 7.5 | 5.5 | 4" | 52 | 1½" | 1334 | 15.3 | 331 | 266 | 250 | 232 | 215 | 198 | 178 | 157 |
| KPS 4-5/60 | 7.5 | 5.5 | 4" | 60 | 1½" | 1510 | 17.5 | 374 | 307 | 288 | 268 | 248 | 228 | 205 | 181 |
| KPS 4-5/75 | 10 | 7.5 | 4" | 75 | 1½" | 1875 | 21.9 | 474 | 383 | 359 | 336 | 309 | 284 | 256 | 226 |
KPS 4-812 models
| Parameters | Q (m³/h) → H (m) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | HP | kW | Motor | Stages | G | L mm | kg | 0 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| KPS 4-8/5 | 1 | 0.75 | 4" | 5 | 2" | 409 | 4.3 | 29 | 25 | 23 | 22 | 20 | 18 | 14 | 12 |
| KPS 4-8/7 | 1.5 | 1.1 | 4" | 7 | 2" | 493 | 5.2 | 40 | 35 | 32 | 30 | 27 | 24 | 20 | 17 |
| KPS 4-8/10 | 2 | 1.5 | 4" | 10 | 2" | 619 | 6.7 | 57 | 49 | 46 | 44 | 39 | 34 | 30 | 25 |
| KPS 4-8/12 | 3 | 2.2 | 4" | 12 | 2" | 703 | 7.7 | 70 | 60 | 57 | 54 | 49 | 45 | 40 | 34 |
| KPS 4-8/15 | 3 | 2.2 | 4" | 15 | 2" | 829 | 9.2 | 87 | 73 | 70 | 66 | 60 | 53 | 47 | 40 |
| KPS 4-8/18 | 4 | 3 | 4" | 18 | 2" | 955 | 10.7 | 103 | 88 | 84 | 80 | 72 | 65 | 55 | 48 |
| KPS 4-8/21 | 5.5 | 4 | 4" | 21 | 2" | 1081 | 12.1 | 121 | 104 | 100 | 93 | 83 | 72 | 64 | 58 |
| KPS 4-8/25 | 5.5 | 4 | 4" | 25 | 2" | 1249 | 14 | 143 | 124 | 117 | 110 | 94 | 83 | 74 | 67 |
| KPS 4-8/30 | 7.5 | 5.5 | 4" | 30 | 2" | 1459 | 16.5 | 173 | 148 | 140 | 131 | 118 | 95 | 85 | 77 |
| KPS 4-8/37 | 7.5 | 5.5 | 4" | 37 | 2" | 1753 | 20 | 214 | 179 | 167 | 160 | 141 | 118 | 100 | 90 |
| KPS 4-8/44 | 10 | 7.5 | 4" | 44 | 2" | 2047 | 23.5 | 255 | 213 | 199 | 188 | 168 | 140 | 118 | 108 |
| KPS 4-8/50 | 10 | 7.5 | 4" | 50 | 2" | 2300 | 26.5 | 289 | 232 | 222 | 213 | 200 | 175 | 150 | 114 |
KPS 4-146 models
| Parameters | Q (m³/h) → H (m) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | HP | kW | Motor | Stages | G | L mm | kg | 0 | 6 | 8 | 10 | 12 | 14 | 16 | 18 |
| KPS 4-14/5 | 2 | 1.5 | 4" | 5 | 2" | 510 | 4.7 | 32 | 31 | 30 | 29 | 25 | 23 | 18 | 14 |
| KPS 4-14/7 | 3 | 2.2 | 4" | 7 | 2" | 640 | 5.7 | 45 | 43 | 41 | 39 | 35 | 33 | 25 | 20 |
| KPS 4-14/10 | 4 | 3 | 4" | 10 | 2" | 835 | 7.2 | 64 | 61 | 58 | 55 | 50 | 46 | 35 | 28 |
| KPS 4-14/13 | 5.5 | 4 | 4" | 13 | 2" | 1030 | 8.7 | 83 | 79 | 75 | 71 | 66 | 61 | 46 | 37 |
| KPS 4-14/18 | 7.5 | 5.5 | 4" | 18 | 2" | 1355 | 11.2 | 116 | 110 | 104 | 98 | 92 | 85 | 65 | 51 |
| KPS 4-14/25 | 10 | 7.5 | 4" | 25 | 2" | 1810 | 14.7 | 162 | 153 | 144 | 135 | 128 | 120 | 90 | 71 |
H (m) is the head in metres at the corresponding flow rate Q (m³/h). For full performance curves, get in touch.
- The tables were taken with water at 20 °C, a density of 1000 kg/m³ and atmospheric pressure of 1.013 bar.
Submersible Pumps
More models in this category
Enquiry about Kurlar KPS 4"
Tell us about the site and we will confirm the model, the price and the delivery time. Installation and service are done by our own teams.
- Help choosingValchan Georgiev, 0888 101 280
- Phone0886 834 7170888 654 040
- Emailoffice@hydrocraft.bg
- Working hoursMon–Fri, 8:30–17:00
- OfficeSofia, Orlandovtsi, 1 Mara Buneva St.



