Built to Dovac’s strict specifications and quality standards, the 2BV5 vacuum pumps and compressors offer excellent performance with low energy costs, packaged in a compact and efficient design.

Liquid ring pump 2BV5
The 2BV5 series includes 1-stage monoblock liquid ring vacuum pumps and compressors with capacities up to 600 m³/hour. These pumps are known for their compact construction, low maintenance costs, reliable operation, high efficiency and long life.
These pumps are suitable for a variety of applications including:
- General mechanical engineering and built-in pumps
- Process Industry
- Food production and evaporators
- Beverage industry and filling machines
- Automotive sector
- Plastic manufacturing and extrusion processes
Overview and specifications
Type No. | Motor (IP55) | Oper. liquid qty. |
Sound pressure level |
Weight | Materi- as 2) |
||||
rated | |||||||||
Frequency | output | voltage | current | Service factor 1) | |||||
Hz | kW | V | A | m³/h | dB(A) | kg | |||
2BV5 110-A1 | 50 | 4,0 | 200-240Δ /345-415Y | 19.0Δ /11.0Y | 1,3 | 0,8 | 63 | 86 | A |
60 | 6,2 | 220-275Δ /380-480Y | 20.0Δ /11.5Y | 1 | 67 | ||||
2BV5 110-B1 | 50 | 4,0 | 200-240Δ /345-415Y | 19.0Δ /11.0Y | 1,3 | 0,8 | 63 | 86 | B |
60 | 6,2 | 220-275Δ /380-480Y | 20.0Δ /11.5Y | 1 | 67 | ||||
2BV5 111-A1 | 50 | 5,5 | 200-240Δ /345-415Y | 27.5Δ /16.0Y | 1,27 | 1,2 | 68 | 105 | A |
60 | 8,2 | 220-275Δ /380-480Y | 27.5Δ /16.0Y | 1 | 1 | 74 | |||
2BV5 111-B1 | 50 | 5,5 | 200-240Δ /345-415Y | 27.5Δ /16.0Y | 1,27 | 1,2 | 68 | 105 | B |
60 | 8,2 | 220-275Δ /380-480Y | 27.5Δ /16.0Y | 1 | 1 | 74 | |||
2BV5 121-A1 | 50 | 7,5 | 200-240Δ /345-415Y | 38.0Δ /22.0Y | 1,3 | 1,2 | 69 | 165 | A |
60 | 11,4 | 220-275Δ /380-480Y | 39.0Δ /22.5Y | 1 | 1,5 | 75 | |||
2BV5 121-B1 | 50 | 7,5 | 200-240Δ /345-415Y | 38.0Δ /22.0Y | 1,3 | 1,2 | 69 | 165 | B |
60 | 11,4 | 220-275Δ /380-480Y | 39.0Δ /22.5Y | 1 | 1,5 | 75 | |||
2BV5 131-A1 | 50 | 11,0 | 345-415Δ | 35,0Δ | 1,23 | 1,8 | 73 | 185 | A |
60 | 16,2 | 380-480Δ | 35,0Δ | 1 | 77 | ||||
2BV5 131-B1 | 50 | 11,0 | 345-415Δ | 35,0Δ | 1,23 | 1,8 | 73 | 185 | B |
60 | 16,2 | 380-480Δ | 35,0Δ | 1 | 77 | ||||
2BV5 161-A1 | 50 | 12,0 | 345-415Δ | 38,0Δ | 1,25 | 2,4 | 74 | 260 | A |
60 | 18,0 | 380-480Δ | 40,0Δ | 1 | 75 | ||||
2BV5 161-B1 | 50 | 12,0 | 345-415Δ | 38,0Δ | 1,25 | 2,4 | 74 | 260 | B |
60 | 18,0 | 380-480Δ | 40,0Δ | 1 | 75 |
1) | The service factor, also known as motor reserve, refers to the capacity of a motor to handle higher than its rated output under standard conditions. The current specifications represent the maximum values that the motor can handle. |
2) | Materials | ||
Casing and cover | Port plate | Impeller | |
A | Cast iron | Cast iron | Stainless steel |
B | Stainless steel | Stainless steel | Stainless steel |
2BV5 series suction power curve
2BV5110

2BV5111

2BV5121

2BV5131

2BV5161

air saturated with water vapor on dry air of 20 deg C, operating water temperature 15 deg C
Dimensions

TYPE | A | B | B1 | B2 | C1 | C2 | H1 | H2 | H3 | H4 | H5 |
2BV5110 | 637 | 325 | 255 | 190 | 41 | 26 | 140 | 156 | 202 | 361 | 328 |
2BV5111 | 679 | 325 | 265 | 216 | 36 | 26 | 150 | 166 | 212 | 371 | 363 |
2BV5121 | 771 | 347 | 265 | 216 | 36 | 26 | 150 | 167 | 217 | 385 | 363 |
2BV5131 | 852 | 377 | 300 | 254 | 35 | 30 | 175 | 194 | 249 | 427 | 435 |
2BV5161 | 1044 | 479 | 370 | 279 | 30 | 30 | 210 | 225 | 303 | 521 | 485 |
TYPE | H6 | H7 | K | L | F | N | S1 | S2 | T | d1 | d2 |
2BV5110 | 38 | 57 | 342 | 130 | 464 | 92 | φ12 | φ12 | 340 | 19 | 160 |
2BV5111 | 48 | 68 | 348 | 130 | 500 | 92 | φ12 | φ12 | 340 | 19 | 160 |
2BV5121 | 39 | 60 | 430 | 147 | 584 | 97 | φ12 | φ12 | 381.5 | 19 | 182 |
2BV5131 | 53 | 76 | 477.5 | 147 | 658.5 | 103 | φ15 | φ15 | 381.5 | 19 | 182 |
2BV5161 | 51 | 80 | 565 | 201 | 808 | 138 | φ15 | φ15 | 450 | 22 | 200 |
TYPE | d3 | d4 | d5 | W1 | W2 | W3 | d | N3.0 | N4.2 | N8.7 | |
2BV5110 | 123 | 97 | 52 | 180 | 52 | 27 | DN50 | G3/4″ | G3/8″ | G3/8″ | |
2BV5111 | 123 | 97 | 52 | 180 | 52 | 27 | DN50 | G3/4″ | G3/8″ | G3/8″ | |
2BV5121 | 142 | 113 | 66.5 | 200 | 57 | 29 | DN65 | G3/4″ | G3/8″ | G3/8″ | |
2BV5131 | 142 | 113 | 66.5 | 200 | 57 | 29 | DN65 | G3/4″ | G3/8″ | G3/8″ | |
2BV5161 | 156 | 130 | 80 | 250 | 81 | 41 | DN80 | G3/4″ | G3/8″ | G3/8″ |
Dimensions are indicative, binding dimensions available upon request.