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GW type sanitary grade single screw pump This screw pump can be used to transport neutral or corrosive liquids, clean or abrasive liquids, liquids containing gases or easily producing bubbles, high viscosity or low viscosity liquids, including liquids containing fibers and solid substances. Mainly used in industries such as food, textile, paper making, petroleum, chemical, alkali, salt, shipbuilding, construction, nuclear, metallurgy, and mining.
Product Material | cast iron/201/304 |
Flow Range | 0.1~ 65m3/h |
Pressure Range | 0.6~ 1.2MPa |
Caliber Range | 25~ 1 50mm |
Motor Power | 0.55~ 22KW |
Sealing Selection | Filler/Mechanical Seal |
Operation Temperature | 1℃-20℃ |
Working Voltage | 380V/220V |
Application | Transport media containing impurities, high viscosity, and good fluidity. |
Wide range of pressure and flow. The pressure is about 3.4-340 kgf/cm2, and the flow rate can reach 18600 cm3/min;
The types and viscosity range of transported liquids are wide;
Due to the low inertia force of the rotating components inside the pump, high rotational speeds can be used;
Good suction performance and self priming ability;
Uniform and continuous flow, low vibration, and low noise;
Compared with other rotary pumps, they are less sensitive to incoming gases and pollutants;
Solid structure, easy to install and maintain.
The disadvantage of sanitary screw pumps is that they require high processing and assembly requirements for screws; The performance of a pump is sensitive to changes in the viscosity of the liquid.
It mainly consists of a sleeve (pump cylinder) fixed in the pump body, an active screw inserted in the pump cylinder, and two driven screws that mesh with it. Three interlocking screws form a sealing chamber in the pump cylinder according to each lead, creating a seal between the suction and discharge ports.
When the pump is working, due to the symmetrical meshing of the two driven screws and the active screw, the radial force acting on the active screw is completely balanced, and the active screw does not bear bending load. The radial force on the driven screw is supported by the pump cylinder liner along its entire length, so there is no need to install additional bearings at the outer end and it basically does not bear bending loads. During operation, a layer of oil film is formed between the outer surface of the screw and the inner wall of the pump cylinder, which can prevent direct contact between metals and greatly reduce the wear of the screw tooth surface.
Pump specifications | G20 | G25 | G35 | G40 | G50 | G70 | G85 | G105 | G135 |
Permissible particle diameter(max) | 3.5 | 4.5 | 5.7 | 7.1 | 9 | 11.4 | 14.3 | 17.9 | 22.8 |
Allowable fiber length（max） | 20 | 26 | 32 | 40 | 51 | 64 | 80 | 102 | 128 |
GW type sanitary grade single screw pump This screw pump can be used to transport neutral or corrosive liquids, clean or abrasive liquids, liquids containing gases or easily producing bubbles, high viscosity or low viscosity liquids, including liquids containing fibers and solid substances. Mainly used in industries such as food, textile, paper making, petroleum, chemical, alkali, salt, shipbuilding, construction, nuclear, metallurgy, and mining.
Product Material | cast iron/201/304 |
Flow Range | 0.1~ 65m3/h |
Pressure Range | 0.6~ 1.2MPa |
Caliber Range | 25~ 1 50mm |
Motor Power | 0.55~ 22KW |
Sealing Selection | Filler/Mechanical Seal |
Operation Temperature | 1℃-20℃ |
Working Voltage | 380V/220V |
Application | Transport media containing impurities, high viscosity, and good fluidity. |
Wide range of pressure and flow. The pressure is about 3.4-340 kgf/cm2, and the flow rate can reach 18600 cm3/min;
The types and viscosity range of transported liquids are wide;
Due to the low inertia force of the rotating components inside the pump, high rotational speeds can be used;
Good suction performance and self priming ability;
Uniform and continuous flow, low vibration, and low noise;
Compared with other rotary pumps, they are less sensitive to incoming gases and pollutants;
Solid structure, easy to install and maintain.
The disadvantage of sanitary screw pumps is that they require high processing and assembly requirements for screws; The performance of a pump is sensitive to changes in the viscosity of the liquid.
It mainly consists of a sleeve (pump cylinder) fixed in the pump body, an active screw inserted in the pump cylinder, and two driven screws that mesh with it. Three interlocking screws form a sealing chamber in the pump cylinder according to each lead, creating a seal between the suction and discharge ports.
When the pump is working, due to the symmetrical meshing of the two driven screws and the active screw, the radial force acting on the active screw is completely balanced, and the active screw does not bear bending load. The radial force on the driven screw is supported by the pump cylinder liner along its entire length, so there is no need to install additional bearings at the outer end and it basically does not bear bending loads. During operation, a layer of oil film is formed between the outer surface of the screw and the inner wall of the pump cylinder, which can prevent direct contact between metals and greatly reduce the wear of the screw tooth surface.
Pump specifications | G20 | G25 | G35 | G40 | G50 | G70 | G85 | G105 | G135 |
Permissible particle diameter(max) | 3.5 | 4.5 | 5.7 | 7.1 | 9 | 11.4 | 14.3 | 17.9 | 22.8 |
Allowable fiber length（max） | 20 | 26 | 32 | 40 | 51 | 64 | 80 | 102 | 128 |