FSK Corrosion-Resistant Water-Ring Vacuum Pump

Xin’anjiang IIFSK/2FSK corrosion-resistant water-ring vacuum pumps are patented products developed by our company. They feature strong corrosion resistance, high ultimate vacuum, and large pumping capacity, and are widely used in vacuum evaporation, filtration, drying, concentration, distillation, and crystallization across food, petroleum, chemical, pharmaceutical, metallurgical, and electronics industries. Suitable for various gases and corrosive gases without solid particles.

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This pump is widely used in processes such as vacuum evaporation, filtration, drying, concentration, distillation, and vacuum crystallization across the food, petroleum, chemical, pharmaceutical, metallurgical, and electronics industries. It is suitable for handling various gases, including corrosive gases that are free of solid particles.

In practical applications, water-ring pumps are frequently employed for processes such as vacuum drying, vacuum material transfer, negative-pressure dust removal, distillation and filtration, and vacuum crystallization.

Working principle of the liquid-ring vacuum pump

When the impeller of the water-ring vacuum pump rotates clockwise (as shown in the diagram), water is thrown outward by the impeller; due to centrifugal force, the water forms a closed ring of approximately uniform thickness that conforms to the shape of the pump chamber.

The inner surface of the lower part of the water ring is tangent to the impeller hub, while the inner surface of the upper part of the water ring makes contact with the tips of the blades (in practice, the blades extend a certain depth into the water ring).

This arrangement creates a crescent-shaped space between the impeller hub and the water ring, which is further divided by the impeller blades into a series of small chambers equal in number to the blades.

Taking the 0° position at the bottom of the impeller as the starting point: as the impeller rotates through the first 180°, the volume of each small chamber expands, and the chamber connects to the intake port on the end face, drawing in gas; once the intake phase ends, the chamber is cut off from the intake port.

As the impeller continues to rotate, the volume of the small chamber contracts, compressing the gas; when the chamber aligns with the exhaust port, the gas is discharged from the pump.

The water-ring vacuum pump features an eccentric rotor equipped with fixed blades. It operates by throwing water (or liquid) against the stator wall to form a liquid ring concentric with the stator; this liquid ring and the rotor blades together create variable-volume spaces, making it a type of rotary variable-volume vacuum pump.

Product Model

Maximum pumping capacity (m³/min)

Ultimate vacuum level

Power
(kW)

Rotational speed (r/min)

Water consumption (L/min)

Inlet/Outlet Diameter (mm)

Rotational speed(r/min)

Fore-vacuum pump

power(kW)

power(r/min)

Inlet/Outlet Diameter (mm)

Mpa

mmHg

II FSK-1.5

1.6

0.098

735

1440

65/65

IIFSK-3

5.5

1450

65/65

II FSK-2

2.76

0.098

735

1440

65/65

IIFSK-4

7.5

1450

65/65

II FSK-3

3.85

0.098

735

5.5

1440

65/65

IIFSK-4

7.5

1450

65/65

II FSK-4

4.68

0.098

735

7.5

1440

65/65

IIFSK-6

1450

80/80

II FSK-6

6.1

0.098

735

1440

80/80

IIFSK-8

1450

80/80

II FSK-8

7.8

0.098

735

1440

24.5

80/80

IIFSK-6

1450

100/80

II FSK-12

12.6

0.098

735

970

125/125

IIFSK-8

1450

100/80

II FSK-16

16.8

0.098

735

970

150/150

IIFSK-4

7.5

1450

65/65

II FSK-20

20.4

0.098

735

970

150/150

1450

IIFSK-6

1450

100/80

FSK Corrosion-Resistant Water-Ring Vacuum Pump

Description

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