The 2SK series two-stage water ring vacuum pump and the 2SK-P1 series two-stage water ring vacuum pump atmospheric jet pump unit are used to extract air and other non corrosive, water-insoluble, and solid particle free gases to achieve higher vacuum in closed containers.
It is widely used in vacuum evaporation, vacuum concentration, vacuum rehydration, vacuum impregnation, vacuum drying, and vacuum smelting in the fields of food, weaving chemicals, pharmaceuticals, metallurgy, and electronics. It has the characteristics of high vacuum degree, high pumping speed in high vacuum zone, compact structure, reliable operation, and easy maintenance.
The 2SK series is suitable for working conditions where the suction pressure is below -0.08MPa. The 2SK-P1 series is suitable for working conditions where the suction pressure is below -0.096MPa. When equipped with an atmospheric pump, the ultimate vacuum degree can reach -750mmHg.
The working vacuum range is -0.03-0.08MPa.

Main features:

• Compared to single-stage water ring vacuum pumps, it has the characteristics of high vacuum degree and high pumping speed in high vacuum areas;
• Compact structure and easy maintenance;
• Widely applicable, it can extract various gases containing water vapor, flammable, explosive, small amounts of dust, and small amounts of liquid;
• Mainly using water as the working medium, with low maintenance costs;
• Can work in harsh environments.
Technical specifications for 2SK series two-stage water ring vacuum pump

model	swept volume (Mi)3/Score)		mbar (MPa) (millimeters of mercury)	power (Kilowatts)	pump speed (Conversion/minute)	water supply (L/min)	caliber (mm)		Pump weight (including motor) (Kg)
	maximum	The suction pressure is -0.093MPa (-700mmHg)					advance	go out
2SK-1.5	1.5	0.9	-0.097(-725)	4	1440	10-15	40	40	140
2SK-3	3	2	-0.097(-725)	7.5	1440	15-20	40	40	180
2SK-6	6	4	-0.098(-735)	15	1460	25-35	50	50	250
2SK-12	12	8	-0.098(-735)	22	970	40-50	100	100	400
2SK-20	20	14	-0.098(-735)	45	740	60-80	125	125	550
2SK-30	30	20	-0.098(-735)	55	741	60-80	125	125	700

Technical specifications for 2SK-P1 series two-stage water ring vacuum pump atmospheric jet pump unit

model	swept volume (Mi)3/Score)		mbar (MPa) (millimeters of mercury)	power (Kilowatts)	pump speed (Conversion/minute)	water supply (L/min)	caliber (mm)		Pump weight (including motor) (Kg)
	maximum	The suction pressure is -0.093MPa (-700mmHg)					advance	go out
2SK-1.5P1	1.5	0.9	-0.099(-750)	4	1440	10-15	40	40	140
2SK-3P1	3	2	-0.099(-750)	7.5	1440	15-20	40	40	180
2SK-6P1	6	4	-0.099(-750)	15	1460	25-35	50	50	250
2SK-12P1	12	8	-0.099(-750)	22	970	40-50	100	100	400
2SK-20P1	20	14	-0.099(-750)	45	740	60-80	125	125	550
2SK-30P1	30	20	-0.099(-750)	55	741	60-80	125	125	700

Note: 1. The performance indicators listed in the table refer to the performance indicators under the following specified conditions: ① The atmospheric pressure is 0.1013MPa (760mmHg) ② Inlet water temperature 15 ℃ ③ Inhalation air temperature 20 ℃ ④ Relative air temperature 70% 2. The water supply is the value at a suction pressure of -0.05MPa (-400mmHg), and can be greater than this value at ultimate vacuum. 3. Performance tolerance ± 10% 4. When the suction pressure is -0.093MPa, the amount of air extracted is the amount of air extracted when using an electromagnetic valve to control the atmospheric pump.

Two stage water ring vacuum pump and one stage large air pump pumping speed curve