2BE3 Liquid Ring Vacuum Pump
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2BE3 Liquid Ring Vacuum Pump
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The 2BE3 series liquid-ring vacuum pumps and compressors are typically used to extract gases that are free of solid particles, insoluble in water, and non-corrosive, thereby creating vacuum and pressure within enclosed vessels. By modifying the structural materials and applying additional anti-corrosion coatings, these pumps can also be used to extract corrosive gases or operate with corrosive liquids as working fluids, making them ideally suited for long-term, continuous operation.
Features of the 2BE3 Series Liquid Ring Vacuum Pumps
This series of pumps features a single-stage, single-action design, offering advantages such as simple structure, convenient maintenance, reliable operation, high efficiency, and energy savings. They are also well-suited to harsh operating conditions, including large drainage volumes and impact loads.
The impeller is welded and then subjected to high-temperature solid-state fusion treatment. The blades are stamped and formed in a single operation, with a reasonably designed blade profile. The hub is machined on high-precision machine tools and inspected using a dynamic balancing tester, effectively addressing the issue of dynamic imbalance at the root. The impeller and pump shaft are connected via a hot-fit interference fit, ensuring reliable performance and smooth operation. This design enables the impeller to withstand harsh operating conditions characterized by load impact waves.
Equipped with a built-in gas-water separator and featuring air intake and exhaust ports at multiple locations, the pump cover is fitted with an exhaust valve inspection window. The clearance between the impeller and the distribution plate is adjusted by tightening the end covers of the locating bearings. This design ensures easy installation and operation, simple handling, and convenient maintenance. All vacuum pumps manufactured by our company undergo rigorous inspection and testing by a certified testing center, guaranteeing superior performance, reliability, and durability.
The pump supply scope can be flexibly selected according to customer requirements:
Pump head: Includes an overhead separator and a connecting pipe.
Complete unit: Includes the pump head, top-mounted separator, connecting pipe, motor, chassis, guard cover, electric pump coupling or electric pump pulley, and belt.
Vacuum pump unit: Includes the complete vacuum pump, gas-water separator, check valve, bellows and connecting pipelines, electrical contact vacuum gauge, and autotransformer-type reduced-voltage starting cabinet.
Complete set of equipment: includes the entire pump unit, air-water separator (with level gauge), heat exchanger, valves, normally closed valves, filter, vacuum gauge, pressure gauge, piping, and electrical control cabinet.
The inlet pressure is below 33 mbar (absolute pressure) for secondary or multi-stage vacuum systems (water-ring—Roots unit).
Various types of transmission methods, such as coupling transmission, belt pulley transmission, and gear reducer transmission.
Depending on the corrosivity of the medium, we can provide special materials such as 304 and 316L stainless steel. Based on customer requirements, we can offer a variety of sealing solutions, including packing seals and mechanical seals.
Application areas
The 2BE3 series liquid-ring vacuum pumps and compressors are widely used in industries such as papermaking, chemical engineering, petrochemicals, light industry, pharmaceuticals, food processing, building materials, electrical appliances, coal washing, mineral beneficiation, and fertilizer production. Their operational reliability is universally acclaimed. In the coal industry in particular, these pumps can effectively extract highly flammable and explosive gases such as coalbed methane and methane gas. They can be designed and installed as surface gas extraction stations and can also be integrated with mobile gas extraction systems.
Technical Parameters
Model Minimum suction pressure
(mbar)Pump speed
(r/min)Maximum air volume
(m³/min)Maximum shaft power (kW) Motor power
(kW)Pump head weight (kg)
(Connecting pipe + separator)2BE3400 160 340 80 80 90 2950
(3420)390 94 95 110 440 105 114 132 490 115 130 160 530 125 150 185 570 133 166 185 610 143 190 220 2BE3420 160 340 118 110 132 3400
(3940)390 131 130 160 440 146 150 185 490 160 177 200 530 170 193 220 570 183 220 250 610 192 260 315 2BE3500 160 260 146 138 160 5500
(6260)300 170 173 200 340 191 187 220 380 210 238 280 420 230 275 315 470 260 338 400 2BE3520 160 260 178 175 200 6100
(6900)300 205 210 250 340 233 248 280 380 257 287 315 420 281 333 400 470 315 410 450 2BE3600 160 230 213 208 250 8380
(9380)260 243 245 280 290 267 280 315 320 292 328 355 350 317 370 400 400 360 472 500 2BE3620 160 230 260 248 280 9270
(10370)260 293 297 355 290 326 340 400 320 366 385 450 350 386 445 500 400 438 570 630 2BE3670 160 210 302 285 315 11700
(13010)240 348 348 400 270 386 412 450 300 426 475 560 320 450 515 560 330 465 540 630 370 518 660 710 2BE3720 160 190 366 340 400 14290
(15840)210 410 390 450 240 460 465 560 270 510 550 630 300 565 640 710 340 633 800 900