This type of vacuum pump system uses the water Ring vacuum pump as the backing pump. As a result. It is suitable for sucking gases containing plenty of water vapour, or a little corrosive and condensable gases in chemical industry. For example, vacuum distillation, vacuum evaporation, crystal, drying etc.

性能及规格 Function & Specifications

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项Name 型号Model	抽气速率 (L/S) Pumping Speed	极限压力 (≤Pa) Ultimate Vacuum	机组组成型号 Construction of pump System			总功率 (Kw) Total Power	进气口径 Inlet Diameter	排气口径 Outlet Diameter
			主泵 Main Pump	中间泵 holding Pump	前级泵 Backing Pump
JZJS30-1	30	4×10-2	ZJ30		2SK-1.5A	4.75	φ50	φ40
JZJS70-2	70	4×10-2	ZJ70		2SK-1.5A	5.5	φ80	φ40
JZJS70-1	70	4×10-2	ZJ70		2SK-3A	9	φ80	φ40
JZJS150-2	150	4×10-2	ZJ150A		2SK-3A	10.5	φ100	φ40
JZJS150-1	150	4×10-2	ZJ150A		2SK-6A	18	φ100	φ50
JZJS300-2	300	4×10-2	ZJ300		2SK-6A	19	φ150	φ50
JZJS600-2	600	4×10-2	ZJ600		2SK-12A	35.5	φ150	φ80
JZJS1200-2	1200	4×10-2	ZJ1200A		2SK-25A	56	φ300	φ100
JZJS30-11	30	25	ZJ30	ZJ30	2SK-1.5A	5.5	φ50	φ40
JZJS70-21	70	25	ZJ70	ZJ30	2SK-1.5A	6.25	φ80	φ40
JZJS70-12	70	25	ZJ70	ZJ70	2SK-1.5A	7	φ80	φ40
JZJS70-11	70	25	ZJ70	ZJ70	2SK-3A	10.5	φ80	φ40
JZJS150-21	150	25	ZJ150A	ZJ70	2SK-3A	12	φ100	φ40
JZJS150-12	150	25	ZJ150A	ZJ70	2SK-3A	13.5	φ100	φ40
JZJS150-11	150	25	ZJ150A	ZJ150	2SK-6A	21	φ100	φ50
JZJS300-41	300	25	ZJ300	ZJ150	2SK-3A	13	φ150	φ40
JZJS300-22	300	25	ZJ300	ZJ70	2SK-3A	14.5	φ150	φ40
JZJS300-21	300	25	ZJ300	ZJ150	2SK-6A	22	φ150	φ50
JZJS600-41	600	25	ZJ600	ZJ150	2SK-6A	23.5	φ150	φ50
JZJS600-22	600	25	ZJ600	ZJ300	2SK-6A	24.5	φ150	φ50
JZJS1200-22	1200	25	ZJ1200A	ZJ600	2SK-12A	46.5	φ300