Gear oil pump series
High viscosity pump series
Centrifugal pump series
Pump series for other purposes
25×4-46 triple screw pump
The 25×4-46 triple screw pump is a rotary displacement pump. Due to the meshing of the spiral grooves on the active screw and the driven screw, as well as their coordination with the inner surface of the three holes in the liner, several stages of dynamic sealing chambers are formed between the pumps. These dynamic sealing chambers continuously move the liquid axially from the pump to the pump outlet, gradually increasing the pressure of the conveyed liquid, thereby forming a continuous, stable, and axially moving pressure liquid.
1. The medium conveyed by the 25×4-46 triple screw pump is continuously transported in a straight line, without stirring or pulsation.
2. The 25×4-46 triple screw pump has low vibration and low noise.
3. The pressure of the 25 × 4-46 triple screw pump is high.
4. The structure of the 25 × 4-46 triple screw pump is simple and easy to disassemble.
5. The 25×4-46 triple screw pump has a small volume and light weight.
6. The 25×4-46 triple screw pump has slight wear and a long service life.
7. The 25×4-46 triple screw pump is widely used in various industries such as petroleum, chemical fiber, metallurgy, machinery, power, machine tools, ships, glass, and highways.
8. The 25×4-46 triple screw pump is suitable for conveying lubricating liquids such as fuel oil, lubricating oil, hydraulic oil, crude oil, asphalt, and other similar oils.
9. A 25×4-46 triple screw pump is used as a lubrication pump in industry, a hydraulic pump in hydraulic systems, and a conveying and boosting pump in fuel systems; As a conveying and refueling pump in the oil transportation system.
The liquid conveyed by the 25×4-46 triple screw pump is various lubricating liquids without solid particles, corrosive oils, and similar oils. The viscosity of the conveyed liquid is 1.2-100E (3.0-760cst).
1. Simple structure: It has multiple structural forms, generally with a small flow rate of 0.2-6.5m/h. The pump body and liner are combined into one (collectively referred to as the pump body), and the shaft seal is a mechanical seal on the end face.
2. Long service life: The active screw of the 25×4-46 triple screw pumpis driven by an electric motor, and there is no mechanical contact between the master and slave rods. The slave is driven by the transmitted pressure liquid to rotate around the axis. There is a layer of oil film protection between the master and slave rods, as well as between the screw and the liner, so the mechanical friction of the pump is small and the service life is long.
The liquid conveyed by the 3.25×4-46 triple screw pump moves axially and uniformly in a straight line inside the pump, resulting in small pressure pulsation, stable flow rate, and low noise. Due to the small inertia of the rotating part, the starting torque and vibration are very small.
The 4.25 × 4-46 triple screw pump has high suction capacity.
5. For the normal operation of pumps, motors, and piping systems, screw pumps with medium or higher flow rates are equipped with protective valves. When the pressure exceeds the set pressure of the protective valve. High pressure oil will return to the inlet of the pump.
Technical parameters:
model | Discharge pressureP MPa | flow Q | speed n r/min | Cavitation margin rm | efficiencyη % | electrical machinery | ||
m3/h | L/min | powerkw | model | |||||
25×4-46 | 1.0 | 0.8 | 13 | 1450 | 4 | 62 | 0.75 | Y802-4 |
2.5 | 0.6 | 10 | 60.6 | 1.5 | Y90L-4 | |||
1.0 | 2.0 | 33 | 2900 | 4.5 | 59.4 | 1.5 | Y90S-2 | |
2.5 | 1.6 | 26 | 69 | 3 | Y100L-2 | |||
30×4-46 | 1.0 | 1.6 | 26 | 1450 | 4.5 | 63.5 | 1.1 | Y90S-4 |
2.5 | 1.2 | 20 | 61 | 2.2 | Y100L1-4 | |||
1.0 | 3.6 | 60 | 2900 | 5 | 60 | 2.2 | Y90L-2 | |
2.5 | 3.2 | 53 | 69 | 4 | Y112M-2 |
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