2BV series liquid (water) ring vacuum pumps suitable for pumping gas and water vapor, the suction pressure can reach 33mbar absolute pressure (97% vacuum), when the transformer oil as working fluid (called oil ring vacuum pump), suction pressure can reach 6.7mbar absolute pressure (99.3% vacuum), can be completely replace the reciprocating pump. When the liquid ring vacuum pump in suction pressure close to the limit of vacuum (working fluid saturated vapor pressure) for a long time to work, should be connected to the protection of the pipe to protect the pump. 2BV series liquid (water) ring vacuum pump as a new generation of energy-saving products, with its excellent performance and many advantages will be fully replace the same energy SK, 2SK series liquid (water) ring vacuum pump and W, WY, WL series reciprocating pump.
2BV2-Ex, 2BV6 series liquid (water) ring vacuum pump is mainly used for pumping explosive gases, and in all kinds of flammable and explosive environment, its performance parameters and 2BV2, 2BV5 series of the same.
Main features:
Motor and pump coaxial direct design, saving space, easy to install, easy maintenance.
All - are cavitation protection tube interface, such as working in the limit pressure, open the cavitation protection tube interface (or separator connection) to ensure maximum suction effect under the condition of cavitation eliminating sound, and for the protection of the pump.
Aluminum bronze impeller and diaphragm high strength, durable, and improve the corrosion resistance of the pump. Such as over-current components using stainless steel, can work in a more demanding environment.
Unique flexible exhaust design, will not produce over compression, to ensure that the 2BV Series in its performance range of the best efficiency.
All use Y2 series motor, protection grade IP54, IP55 (usually IP44), insulation grade F class insulation (usually B class insulation).
All use NTN or NSK imported bearings.
2BV series liquid ring vacuum pump can realize all the flexible seals, which can greatly prolong the service life of the vacuum pump under severe operating conditions.

2BV系列性能參數表

曲線編號	產品型號	最大氣量		極限壓力	電機功率	泵轉速	工作流量	噪音	重量
		m3/min	m3/h	mbar(MPa)	KW	r/min	L/min	dB(A)	kg
60v	2BV2 060	0.45	27	33mba(-0.098Mpa)	1.1	2840	2	62	31
61v	2BV2 061	0.86	52		1.5	2840	2	65	35
70v	2BV2 070	1.33	80		3	2860	2.5	66	56
71v	2BV2 071	1.83	110		4	1880	4.2	72	65
60v	2BV2 060-Ex	0.45	27		1.1	2840	2	62	39
61v	2BV2 061-Ex	0.86	52		1.5	2840	2	65	45
70v	2BV2 070-Ex	1.33	80		3	2860	2.5	66	66
71v	2BV2 071-Ex	1.83	110		4	1880	4.2	72	77
110v	2BV5 110	2.75	165		4	1440	6.7	63	103
111v	2BV5 111	3.83	230		5.5	1440	8.3	68	117
121v	2BV5 121	4.66	280		7.5	1440	10	69	149
131v	2BV5 131	6.66	400		11	1460	15	73	205
161v	2BV5 161	8.33	500		15	970	20	74	331
110v	2BV6 110	2.75	165		4	1440	6.7	63	103
111v	2BV6 111	3.83	230		5.5	1440	8.3	68	117
121v	2BV6 121	4.66	280		7.5	1440	10	69	149
131v	2BV6 131	6.66	400		11	1460	15	73	205
161v	2BV6 161	8.33	500		15	970	20	74	331

注：
1.上表中所列性能參數及性能曲線（下圖）是在吸入介質為20℃的飽和空氣，工作液溫度為15℃，排氣壓力為1013mbar的狀態下得到的。性能允許差±10%。
2.表(biao)中(zhong)所(suo)列工作(zuo)液(ye)流(liu)(liu)(liu)量為(wei)配(pei)用氣水(shui)分(fen)離(li)器(qi)，部分(fen)工作(zuo)液(ye)循(xun)環(huan)使(shi)用時所(suo)需(xu)的工作(zuo)液(ye)流(liu)(liu)(liu)量，如工作(zuo)液(ye)不循(xun)環(huan)使(shi)用，則實際需(xu)要(yao)工作(zuo)液(ye)流(liu)(liu)(liu)量約為(wei)表(biao)中(zhong)流(liu)(liu)(liu)量的2倍。