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2BE3 Liquid Ring Vacuum Pump

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 containers. 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 the working fluid, making them ideally suited for long-term, continuous operation.

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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