Series 2sk-P Water Ring Vacuum Pumps with Air Ejector

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Model NO.: 2SK-3P
Weight: 250kg
Trademark: DVE
Transport Package: Polywood Case
Specification: CE Mark, Spare Parts Of High Level
Origin: Zhejiang, China
HS Code: 8414100090
Model NO.: 2SK-3P
Weight: 250kg
Trademark: DVE
Transport Package: Polywood Case
Specification: CE Mark, Spare Parts Of High Level
Origin: Zhejiang, China
HS Code: 8414100090
 
DESCRIPTION
Roots Rotary Piston Pump System is made up with the Roots Vacuum Pump and Rotary Piston Vacuum Pump in series connection. Rotary Piston Vacuum Pump is used as the pre-vacuum pump and the backing vacuum pump of the Roots Vacuum Pump, while the Roots Vacuum Pump is the main vacuum pump. The selection of displacement ratio, between the Roots Vacuum Pump and the Rotary Piston Vacuum Pump, is mainly referred to the vacuum value of the vacuum system under long term running; when working in low vacuum, it is advised to select small displacement ratio(2:1 to 4:1); If working in medium or high vacuum, the bigger displacement ratio(4:1to10:1)should be preferred.
Series 2sk-P Water Ring Vacuum Pumps with Air EjectorSeries 2sk-P Water Ring Vacuum Pumps with Air EjectorSeries 2sk-P Water Ring Vacuum Pumps with Air EjectorSeries 2sk-P Water Ring Vacuum Pumps with Air EjectorSeries 2sk-P Water Ring Vacuum Pumps with Air Ejector
ADVANTAGE
1.High vacuum, high exhausting efficiency in medium or high vacuum, wide working range, obvious energy-saving results.
2. Integrated rack, compact structure, small required space.
3. High automation, simple operation, easy maintenance, safe, reliable and durable running.
4. To customize a special pump system as per the specific needs of the end user.
 
PARAMETER
Main Specifications for One Roots Pump with Single Stage Rotary Piston Punmp Vacuum System
Model Middle Pump 
50Hz		 Backing 
Pump		 Displacement
(L/s)		 Ulimate Partial 
Pressure(Pa)		 Ulimate Total 
Pressure(Pa)		 Motor Power
(kW)		 Suction
(mm)		 Discharge
(mm)
JZH75-3 ZJ-75 H-25DVA 75 0.05 0.8 4.4,3.7 100 40
JZH110-4 ZJ-110 H-25DVA 110 0.05 0.8 4.4,3.7 100 40
JZH150-6 ZJ-150 H-25DVA 150 0.05 0.8 5.2,4.5 100 50
JZH220-4 ZJ-220 H-50DV 220 0.05 0.8 8,6 100 50
JZH220-3 ZJ-220 H-60DVA 220 0.05 0.8 8,7 100 50
JZH300-4 ZJ-300 H-70DV 300 0.05 0.8 9.5 150 63
JZH300-3 ZJ-300 H-100DV 300 0.05 0.8 11.5 150 63
JZH600-6 ZJ-600 H-100DV 600 0.05 0.8 15,13 200 63
JZH600-5 ZJ-600 H-120DV 600 0.05 0.8 15,13 200 63
JZH600-4 ZJ-600 H-150DV 600 0.05 0.8 18.5,16.5 200 80
JZH600-3.5 ZJ-600 H-160DV 600 0.05 0.8 18.5,16.5 200 80
JZH600-3 ZJ-600 H-220DV 600 0.05 0.8 22.5,20.5 200 100
JZH1200-8 ZJ-1200 H-150DV 1200 0.05 0.8 22 250 80
JZH1200-7.5 ZJ-1200 H-160DV 1200 0.05 0.8 22 250 80
JZH1200-5 ZJ-1200 H-220DV 1200 0.05 0.8 26 250 100
 
JZH1200-4 ZJ-1200 H-300DV 1200 0.05 0.8 33 250 100
JZH1800-8 ZJ-1800 H-220DV 1800 0.05 0.8 30 250 100
JZH1800-6 ZJ-1800 H-300DV 1800 0.05 0.8 37 250 100
JZH1800-3 ZJ-1800 H-600DV 1800 0.05 0.8 60 250 150
JZH2500-11 ZJ-2500 H-220DV 2500 0.05 0.8 37 300 100
JZH2500-8 ZJ-2500 H-300DV 2500 0.05 0.8 44 300 100
JZH2500-4 ZJ-2500 H-600DV 2500 0.05 0.8 67 300 150
JZH5000-8 ZJ-5000 H-600DV 5000 0.05 0.8 82 400 150
 
Main Specifications for One Roots Pump with Double Stages Rotary Piston Pump Vacuum System
Model Main Pump 
50Hz		 Backing 
Pump		 Displacement
(L/s)		 Ulimate Partial 
Pressure(Pa)		 Ulimate Total 
Pressure(Pa)		 Motor Power
(kW)		 Suction
(mm)		 Discharge
(mm)
ZJ2H75-5 ZJ-75 2H-15DVA 75 0.02 0.5 4.4,3.7 100 40
ZJ2H110-7 ZJ-110 2H-15DVA 110 0.02 0.5 4.4,3.7 100 40
ZJ2H150-5 ZJ-150 2H-30DV 150 0.02 0.5 7,6 100 50
ZJ2H220-7 ZJ-220 2H-30DV 220 0.02 0.5 8,6 100 50
ZJ2H220-5 ZJ-220 2H-45DVA 220 0.02 0.5 8,7 100 50
ZJ2H220-4 ZJ-220 2H-50DV 220 0.02 0.5 9.5,8.5 100 63
ZJ2H300-6 ZJ-300 2H-50DV 300 0.02 0.5 9.5 150 63
ZJ2H300-4 ZJ-300 2H-70DV 300 0.02 0.5 11.5 150 63
ZJ2H600-8.5 ZJ-600 2H-70DV 600 0.02 0.5 15 200 63
ZJ2H600-7.5 ZJ-600 2H-80DV 600 0.02 0.5 15 200 63
ZJ2H600-6 ZJ-600 2H-120DV 600 0.02 0.5 18.5,16.5 200 80
ZJ2H600-5 ZJ-600 2H-120DV 600 0.02 0.5 18.5,16.5 200 80
ZJ2H1200-8 ZJ-1200 2H-150DV 1200 0.02 0.5 26 250 100
ZJ2H1200-5 ZJ-1200 2H-220DV 1200 0.02 0.5 33 250 100
ZJ2H1800-8 ZJ-1800 2H-220DV 1800 0.02 0.5 37 250 100
ZJ2H1800-4 ZJ-1800 2H-450DV 1800 0.02 0.5 60 250 150
ZJ2H2500-11 ZJ-2500 2H-220DV 2500 0.02 0.5 44,40.5 300 100
ZJ2H2500-5.5 ZJ-2500 2H-450DV 2500 0.02 0.5 67,63.5 300 150
ZJ2H5000-11 ZJ-5000 2H-450DV 5000 0.02 0.5 82 400 150
 
Main Specifications for Two Roots Pumps with Single Stage Rotary Piston Pump Vacuum System
Model Main Pump 
50Hz		 Middle Pump 
50Hz		 Backing 
Pump		 Displacement
(L/s)		 Ulimate Partial 
Pressure(Pa)		 Ulimate Total 
Pressure(Pa)		 Motor Power
(kW)		 Suction
(mm)		 Discharge
(mm)
J2ZH220-33 ZJ-220 ZJ-75 H-25DVA 220 0.02 0.5 7.4 100 40
J2ZH300-43 ZJ-300 ZJ-75 H-25DVA 300 0.02 0.5 8.4 150 40
J2ZH600-43 ZJ-600 ZJ-150 H-50DV 600 0.02 0.5 14.5 200 50
J2ZH1200-53.5 ZJ-1200 ZJ-220 H-60DVA 1200 0.02 0.5 18 250 50
J2ZH1200-53 ZJ-1200 ZJ-220 H-70DV 1200 0.02 0.5 19.5 250 63
J2ZH1200-43 ZJ-1200 ZJ-300 H-100DV 1200 0.02 0.5 22.5 250 63
J2ZH1200-42.5 ZJ-1200 ZJ-300 H-120DV 1200 0.02 0.5 22.5 250 63
J2ZH1800-62.5 ZJ-1800 ZJ-300 H-150DV 1800 0.02 0.5 26.5 250 63
J2ZH1800-34 ZJ-1800 ZJ-600 H-160DV 1800 0.02 0.5 33.5 250 80
J2ZH1800-33.5 ZJ-1800 ZJ-600 H-150DV 1800 0.02 0.5 33.5 250 80
J2ZH2500-44 ZJ-2500 ZJ-600 H-160DV 2500 0.02 0.5 40.5 300 80
J2ZH2500-43.5 ZJ-2500 ZJ-600 2H-220DV 2500 0.02 0.5 40.5 300 80
J2ZH2500-43 ZJ-2500 ZJ-600 H-220DV 2500 0.02 0.5 44.5 300 100
J2ZH5000-44 ZJ-5000 ZJ-1200 H-300DV 5000 0.02 0.5 70 400 100
J2ZH5000-33 ZJ-5000 ZJ-1800 H-600DV 5000 0.02 0.5 97 400 150
 
Main Specifications for Two Roots Pumps with Double Stages Rotary Piston Pump Vacuum System
Model Main Pump 
50Hz		 Middle Pump 
50Hz		 Backing 
Pump		 Displacement
(L/s)		 Ulimate Partial 
Pressure(Pa)		 Ulimate Total 
Pressure(Pa)		 Motor Power
(kW)		 Suction
(mm)		 Discharge
(mm)
J2Z2H220-35 ZJ-220 ZJ-75 2H-15DVA 220 0.01 0.3 8.4 100 40
J2Z2H300-42.5 ZJ-300 ZJ-75 2H-30DV 300 0.01 0.3 10.2 150 20
J2Z2H600-43.5 ZJ-600 ZJ-150 2H-45DVA 600 0.01 0.3 10.2 200 20
J2Z2H600-43 ZJ-600 ZJ-150 2H-50DV 600 0.01 0.3 14.5 200 20
J2Z2H1200-53 ZJ-1200 ZJ-220 2H-70DV 1200 0.01 0.3 14.5 250 63
J2Z2H1200-44 ZJ-1200 ZJ-300 2H-80DV 1200 0.01 0.3 22.5 250 63
J2Z2H1200-43 ZJ-1200 ZJ-300 2H-100DV 1200 0.01 0.3 22.5 250 80
J2Z2H1200-42.5 ZJ-1200 ZJ-300 2H-120DV 1200 0.01 0.3 26 250 80
J2Z2H1800-34 ZJ-1800 ZJ-600 2H-150DV 1800 0.01 0.3 37.5 250 100
J2Z2H1800-33.5 ZJ-1800 ZJ-600 2H-160DV 1800 0.01 0.3 37.5 250 100
J2Z2H1800-33 ZJ-1800 ZJ-600 2H-220DV 1800 0.01 0.3 44.5 250 100
J2Z2H1800-43.5 ZJ-2500 ZJ-600 2H-160DV 2500 0.01 0.3 44.5 300 100
J2Z2H2500-43 ZJ-2500 ZJ-600 2H-220DV 2500 0.01 0.3 51.5 300 100
J2Z2H5000-43 ZJ-5000 ZJ-1200 2H-450DV 5000 0.01 0.3 93 400 150
Note:1,If roots vacuum pump is operated at 60Hz,the displacement should be increased to1.2times.
          2,For the ZJP roots vacuum pumps with bypass valve,the unit model must be changed to J2ZPH,other parameters are unchanged.
 
APPLICATION
Widely used in vacuum coating, vacuum metallurgy, vacuum heat treatment, vacuum drying, vacuum impregnation, vacuum strainer, poly-silicon production, aerospace simulation and so on.
Series 2sk-P Water Ring Vacuum Pumps with Air Ejector 
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   
DESCRIPTION
Roots Rotary Piston Pump System is made up with the Roots Vacuum Pump and Rotary Piston Vacuum Pump in series connection. Rotary Piston Vacuum Pump is used as the pre-vacuum pump and the backing vacuum pump of the Roots Vacuum Pump, while the Roots Vacuum Pump is the main vacuum pump. The selection of displacement ratio, between the Roots Vacuum Pump and the Rotary Piston Vacuum Pump, is mainly referred to the vacuum value of the vacuum system under long term running; when working in low vacuum, it is advised to select small displacement ratio(2:1 to 4:1); If working in medium or high vacuum, the bigger displacement ratio(4:1to10:1)should be preferred.
Series 2sk-P Water Ring Vacuum Pumps with Air EjectorSeries 2sk-P Water Ring Vacuum Pumps with Air EjectorSeries 2sk-P Water Ring Vacuum Pumps with Air EjectorSeries 2sk-P Water Ring Vacuum Pumps with Air EjectorSeries 2sk-P Water Ring Vacuum Pumps with Air Ejector
ADVANTAGE
1.High vacuum, high exhausting efficiency in medium or high vacuum, wide working range, obvious energy-saving results.
2. Integrated rack, compact structure, small required space.
3. High automation, simple operation, easy maintenance, safe, reliable and durable running.
4. To customize a special pump system as per the specific needs of the end user.
 
PARAMETER
Main Specifications for One Roots Pump with Single Stage Rotary Piston Punmp Vacuum System
Model Middle Pump 
50Hz		 Backing 
Pump		 Displacement
(L/s)		 Ulimate Partial 
Pressure(Pa)		 Ulimate Total 
Pressure(Pa)		 Motor Power
(kW)		 Suction
(mm)		 Discharge
(mm)
JZH75-3 ZJ-75 H-25DVA 75 0.05 0.8 4.4,3.7 100 40
JZH110-4 ZJ-110 H-25DVA 110 0.05 0.8 4.4,3.7 100 40
JZH150-6 ZJ-150 H-25DVA 150 0.05 0.8 5.2,4.5 100 50
JZH220-4 ZJ-220 H-50DV 220 0.05 0.8 8,6 100 50
JZH220-3 ZJ-220 H-60DVA 220 0.05 0.8 8,7 100 50
JZH300-4 ZJ-300 H-70DV 300 0.05 0.8 9.5 150 63
JZH300-3 ZJ-300 H-100DV 300 0.05 0.8 11.5 150 63
JZH600-6 ZJ-600 H-100DV 600 0.05 0.8 15,13 200 63
JZH600-5 ZJ-600 H-120DV 600 0.05 0.8 15,13 200 63
JZH600-4 ZJ-600 H-150DV 600 0.05 0.8 18.5,16.5 200 80
JZH600-3.5 ZJ-600 H-160DV 600 0.05 0.8 18.5,16.5 200 80
JZH600-3 ZJ-600 H-220DV 600 0.05 0.8 22.5,20.5 200 100
JZH1200-8 ZJ-1200 H-150DV 1200 0.05 0.8 22 250 80
JZH1200-7.5 ZJ-1200 H-160DV 1200 0.05 0.8 22 250 80
JZH1200-5 ZJ-1200 H-220DV 1200 0.05 0.8 26 250 100
 
JZH1200-4 ZJ-1200 H-300DV 1200 0.05 0.8 33 250 100
JZH1800-8 ZJ-1800 H-220DV 1800 0.05 0.8 30 250 100
JZH1800-6 ZJ-1800 H-300DV 1800 0.05 0.8 37 250 100
JZH1800-3 ZJ-1800 H-600DV 1800 0.05 0.8 60 250 150
JZH2500-11 ZJ-2500 H-220DV 2500 0.05 0.8 37 300 100
JZH2500-8 ZJ-2500 H-300DV 2500 0.05 0.8 44 300 100
JZH2500-4 ZJ-2500 H-600DV 2500 0.05 0.8 67 300 150
JZH5000-8 ZJ-5000 H-600DV 5000 0.05 0.8 82 400 150
 
Main Specifications for One Roots Pump with Double Stages Rotary Piston Pump Vacuum System
Model Main Pump 
50Hz		 Backing 
Pump		 Displacement
(L/s)		 Ulimate Partial 
Pressure(Pa)		 Ulimate Total 
Pressure(Pa)		 Motor Power
(kW)		 Suction
(mm)		 Discharge
(mm)
ZJ2H75-5 ZJ-75 2H-15DVA 75 0.02 0.5 4.4,3.7 100 40
ZJ2H110-7 ZJ-110 2H-15DVA 110 0.02 0.5 4.4,3.7 100 40
ZJ2H150-5 ZJ-150 2H-30DV 150 0.02 0.5 7,6 100 50
ZJ2H220-7 ZJ-220 2H-30DV 220 0.02 0.5 8,6 100 50
ZJ2H220-5 ZJ-220 2H-45DVA 220 0.02 0.5 8,7 100 50
ZJ2H220-4 ZJ-220 2H-50DV 220 0.02 0.5 9.5,8.5 100 63
ZJ2H300-6 ZJ-300 2H-50DV 300 0.02 0.5 9.5 150 63
ZJ2H300-4 ZJ-300 2H-70DV 300 0.02 0.5 11.5 150 63
ZJ2H600-8.5 ZJ-600 2H-70DV 600 0.02 0.5 15 200 63
ZJ2H600-7.5 ZJ-600 2H-80DV 600 0.02 0.5 15 200 63
ZJ2H600-6 ZJ-600 2H-120DV 600 0.02 0.5 18.5,16.5 200 80
ZJ2H600-5 ZJ-600 2H-120DV 600 0.02 0.5 18.5,16.5 200 80
ZJ2H1200-8 ZJ-1200 2H-150DV 1200 0.02 0.5 26 250 100
ZJ2H1200-5 ZJ-1200 2H-220DV 1200 0.02 0.5 33 250 100
ZJ2H1800-8 ZJ-1800 2H-220DV 1800 0.02 0.5 37 250 100
ZJ2H1800-4 ZJ-1800 2H-450DV 1800 0.02 0.5 60 250 150
ZJ2H2500-11 ZJ-2500 2H-220DV 2500 0.02 0.5 44,40.5 300 100
ZJ2H2500-5.5 ZJ-2500 2H-450DV 2500 0.02 0.5 67,63.5 300 150
ZJ2H5000-11 ZJ-5000 2H-450DV 5000 0.02 0.5 82 400 150
 
Main Specifications for Two Roots Pumps with Single Stage Rotary Piston Pump Vacuum System
Model Main Pump 
50Hz		 Middle Pump 
50Hz		 Backing 
Pump		 Displacement
(L/s)		 Ulimate Partial 
Pressure(Pa)		 Ulimate Total 
Pressure(Pa)		 Motor Power
(kW)		 Suction
(mm)		 Discharge
(mm)
J2ZH220-33 ZJ-220 ZJ-75 H-25DVA 220 0.02 0.5 7.4 100 40
J2ZH300-43 ZJ-300 ZJ-75 H-25DVA 300 0.02 0.5 8.4 150 40
J2ZH600-43 ZJ-600 ZJ-150 H-50DV 600 0.02 0.5 14.5 200 50
J2ZH1200-53.5 ZJ-1200 ZJ-220 H-60DVA 1200 0.02 0.5 18 250 50
J2ZH1200-53 ZJ-1200 ZJ-220 H-70DV 1200 0.02 0.5 19.5 250 63
J2ZH1200-43 ZJ-1200 ZJ-300 H-100DV 1200 0.02 0.5 22.5 250 63
J2ZH1200-42.5 ZJ-1200 ZJ-300 H-120DV 1200 0.02 0.5 22.5 250 63
J2ZH1800-62.5 ZJ-1800 ZJ-300 H-150DV 1800 0.02 0.5 26.5 250 63
J2ZH1800-34 ZJ-1800 ZJ-600 H-160DV 1800 0.02 0.5 33.5 250 80
J2ZH1800-33.5 ZJ-1800 ZJ-600 H-150DV 1800 0.02 0.5 33.5 250 80
J2ZH2500-44 ZJ-2500 ZJ-600 H-160DV 2500 0.02 0.5 40.5 300 80
J2ZH2500-43.5 ZJ-2500 ZJ-600 2H-220DV 2500 0.02 0.5 40.5 300 80
J2ZH2500-43 ZJ-2500 ZJ-600 H-220DV 2500 0.02 0.5 44.5 300 100
J2ZH5000-44 ZJ-5000 ZJ-1200 H-300DV 5000 0.02 0.5 70 400 100
J2ZH5000-33 ZJ-5000 ZJ-1800 H-600DV 5000 0.02 0.5 97 400 150
 
Main Specifications for Two Roots Pumps with Double Stages Rotary Piston Pump Vacuum System
Model Main Pump 
50Hz		 Middle Pump 
50Hz		 Backing 
Pump		 Displacement
(L/s)		 Ulimate Partial 
Pressure(Pa)		 Ulimate Total 
Pressure(Pa)		 Motor Power
(kW)		 Suction
(mm)		 Discharge
(mm)
J2Z2H220-35 ZJ-220 ZJ-75 2H-15DVA 220 0.01 0.3 8.4 100 40
J2Z2H300-42.5 ZJ-300 ZJ-75 2H-30DV 300 0.01 0.3 10.2 150 20
J2Z2H600-43.5 ZJ-600 ZJ-150 2H-45DVA 600 0.01 0.3 10.2 200 20
J2Z2H600-43 ZJ-600 ZJ-150 2H-50DV 600 0.01 0.3 14.5 200 20
J2Z2H1200-53 ZJ-1200 ZJ-220 2H-70DV 1200 0.01 0.3 14.5 250 63
J2Z2H1200-44 ZJ-1200 ZJ-300 2H-80DV 1200 0.01 0.3 22.5 250 63
J2Z2H1200-43 ZJ-1200 ZJ-300 2H-100DV 1200 0.01 0.3 22.5 250 80
J2Z2H1200-42.5 ZJ-1200 ZJ-300 2H-120DV 1200 0.01 0.3 26 250 80
J2Z2H1800-34 ZJ-1800 ZJ-600 2H-150DV 1800 0.01 0.3 37.5 250 100
J2Z2H1800-33.5 ZJ-1800 ZJ-600 2H-160DV 1800 0.01 0.3 37.5 250 100
J2Z2H1800-33 ZJ-1800 ZJ-600 2H-220DV 1800 0.01 0.3 44.5 250 100
J2Z2H1800-43.5 ZJ-2500 ZJ-600 2H-160DV 2500 0.01 0.3 44.5 300 100
J2Z2H2500-43 ZJ-2500 ZJ-600 2H-220DV 2500 0.01 0.3 51.5 300 100
J2Z2H5000-43 ZJ-5000 ZJ-1200 2H-450DV 5000 0.01 0.3 93 400 150
Note:1,If roots vacuum pump is operated at 60Hz,the displacement should be increased to1.2times.
          2,For the ZJP roots vacuum pumps with bypass valve,the unit model must be changed to J2ZPH,other parameters are unchanged.
 
APPLICATION
Widely used in vacuum coating, vacuum metallurgy, vacuum heat treatment, vacuum drying, vacuum impregnation, vacuum strainer, poly-silicon production, aerospace simulation and so on.
Series 2sk-P Water Ring Vacuum Pumps with Air Ejector 
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 

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