Roots Pump with Water (Liquid) Ring Pump Vacuum System
1. Able to be used to pump the gases with dust and vapor in the worse circumstances
2. Better vacuum, wider range of pumping gas, higher efficiency
3. Appropriate structure, high reliability &durability
4. Oil saving water saving, energy saving
5. High automation, simple to use, easy to maintenance
6. Able to be made as the vacuum system to pump corrosive gas as per request
 
APPLICATIONS:
It can be applied to the vacuum drying, vacuum degassing, vacuum concentration, vacuum evaporation, vacuum impregnation process in chemical industry, food, medicine, textile, papermaking, electrical and so on.
 
Main Specifications for Roots Pump with Double Stages Water(Liquid)Ring Pump Vacuum System

Model	Main Pump	Backing Pump	Ultimate Pressure          (Pa)		Displacement (L/s)	Motor Power (kW)	Suction (mm)	Discharge (mm)
			Water Ring	Oil Ring
JZ2S(Y)75-2	ZJ75	2S(Y)K2	300	80	75	7.7	100	50
JZ2S(Y)75-1.5	ZJ75	2S(Y)K3	300	80	75	9.7	100	50
JZ2S(Y)110-2	ZJ110	2S(Y)K3	300	80	110	9.7	100	50
JZ2S(Y)150-1.5	ZJ150	2S(Y)K6	300	80	150	14	100	50
JZ2S(Y)220-2	ZJ220	2S(Y)K6	300	80	220	15	100	50
JZ2S(Y)300-1.5	ZJ300	2S(Y)K12	300	80	300	26	150	80
JZ2S(Y)600-3	ZJ600	2S(Y)K12	300	80	600	29.5	200	80
JZ2S(Y)600-1	ZJ600	2S(Y)K25	300	80	600	62.5	200	100
JZ2S(Y)1200-3	ZJ1200	2S(Y)K25	300	80	1200	66	200	100

 
Main Specifications for Two Roots Pumps with Double Stages Water(Liquid)Ring Pump Vacuum System

Model	Main Pump	Middle Pump	Backing Pump	Ultimate Pressure                (Pa)		Displacement (L/s)	Motor Power(kW)	Suction (mm)	Discharge (mm)
				Water Ring	Oil Ring
J2Z2S(Y)150-22	ZJ150	ZJ75	2S(Y)K2	40	1	150	10.7	100	50
J2Z2S(Y)150-21.5	ZJ150	ZJ75	2S(Y)K3	40	1	150	12.7	100	50
J2Z2S(Y)300-42	ZJ300	ZJ75	2S(Y)K2	40	1	300	11.7	150	50
J2Z2S(Y)300-41.5	ZJ300	ZJ75	2S(Y)K3	40	1	300	13.7	150	50
J2Z2S(Y)300-32	ZJ300	ZJ110	2S(Y)K3	40	1	300	13.7	150	50
J2Z2S(Y)300-21.5	ZJ300	ZJ150	2S(Y)K6	40	1	300	18	150	50
J2Z2S(Y)600-32	ZJ600	ZJ220	2S(Y)K6	40	1	600	22.5	200	80
J2Z2S(Y)600-21.5	ZJ600	ZJ300	2S(Y)K12	40	1	600	33.5	200	80
J2Z2S(Y)1200-41.5	ZJ1200	ZJ300	2S(Y)K12	40	1	1200	37	250	80
J2Z2S(Y)1200-21.5	ZJ1200	ZJ600	2S(Y)K25	40	1	1200	73.5	250	100
J2Z2S(Y)2500-41.5	ZJ2500	ZJ600	2S(Y)K25	40	1	2500	84.5	300	100

 
 
Main Specifications for Three Roots Pumps with Double Stages Water(Liquid)Ring Pump Vacuum System

Model	Main Pump	Middle Pump	Middle Pump	Backing Pump	Ultimate Pressure (Pa)		Displacement (L/s)	Motor Power(kW)	Suction (mm)	Discharge (mm)
					Water Ring	Oil Ring
J3Z2S(Y)300-222	ZJ300	ZJ150	ZJ75	2S(Y)K2	1	0.5	300	14.7	150	50
J3Z2S(Y)300-221.5	ZJ300	ZJ150	ZJ75	2S(Y)K3	1	0.5	300	16.7	150	50
J3Z2S(Y)600-232	ZJ600	ZJ300	ZJ110	2S(Y)K3	1	0.5	600	21.2	200	50
J3Z2S(Y)600-221.5	ZJ600	ZJ300	ZJ150	2S(Y)K6	1	0.5	600	25.5	200	50
J3Z2S(Y)1200-421.5	ZJ1200	ZJ300	ZJ150	2S(Y)K6	1	0.5	1200	29	250	50
J3Z2S(Y)1200-232	ZJ1200	ZJ600	ZJ220	2S(Y)K6	1	0.5	1200	33.5	250	50
J3Z2S(Y)1200-221.5	ZJ1200	ZJ600	ZJ300	2S(Y)K12	1	0.5	1200	44.5	250	80

NOTE:
1,Inside the table above, the main pump could be"ZJ"pump, or"ZJP"pump with overflow valve; when"ZJP"is as the main pump,"Z"should be changed to"ZP", "S"represents Water Ring Vacuum Pump, while"Y"does Liquld Ring Vacuum Pump.
2,If Roots Vacuum Pump and Water(Liquid)Ring Pump are operated at 60Hz, the displacement should be increased to 1.2 times.
 
OUR SERVICE
Sea Port: Ningbo/Shanghai, China
Standard: CE Mark, Spare Parts Of High Level
Delivery: Normally according to our factory production schedule, but we can follow your first order time 
Warranty: If pump appear quality problems, free replacements of spare parts will be offered within one year
 
WE CAN PROVIDE YOU
1. On-time Delivery, with More Choice 
2. Perfect Technical Support
3. Customized Vacuum Solutions and Service 
4. Samples Available
5.  Long Quality Guarantee 
6. Fast Response to Customers' Feedback in 12 hours 
 
DEVELOPMENT VACUUM EQUIPMENT CO., LTD
ADD:DONGGANG INDZONE, TAIZHOU, ZHEJIANG, CHINA PC: 317106
TEL:+86-576-83598308 FAX:+86-576-83598309