| Customization: | Available |
|---|---|
| After-sales Service: | Oversea Install Service |
| Warranty: | 3 |
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| Comparison of several positive displacement pumps | |||
| Comparison content | Rotor lobe pump | Twin-screw pump | Single screw pump |
| Suitable for working conditions |
Transfer viscosity medium or solid-liquid mixture. | Transfer viscosity medium. | Transfer viscosity medium or solid-liquid mixture. |
| Structural | Gap is kept between the rotors and between the rotors and the pump body, no friction, long life. | There is a certain gap between the screws, but the wear of the front axle sleeve will cause the wear of the screw, the gap will become larger, and the flow rate and efficiency will decrease. | Rubber stator is easy to wear. |
| Simple structure, low failure rate and convenient maintenance. | There is a shaft sleeve in the front section, which is easy to wear and tear. The pump needs to be disassembled for replacement, and the maintenance is complex. | There is a shaft sleeve in the front section, which is easy to wear and tear. The pump needs to be disassembled for replacement, and the maintenance is complex. | |
| Spare parts | Mechanical seal. | Mechanical seal. | Mechanical seal. |
| Seal ring. | Seal ring. | Seal ring. | |
| No. | Axle sleeve. | Axle sleeve. | |
| Long life, no need for spare. | Long life, no need for spare. | Long life, no need for spare. | |
| Comprehensive comparison | Simple structure, low failure rate and convenient maintenance, long life. | The structure is complex, failure rate is high, maintenance is complex, maintenance cost is high, life is short . | The structure is complex, failure rate is high, maintenance is complex, maintenance cost is high, life is short . |
| working principle | The rotor pump adopts two synchronous rotors. The rotor is driven by a pair of synchronous gears in the box. Driven by the main and auxiliary shafts, the rotor rotates in the opposite direction synchronously, which changes the volume of the pump, thus forming a higher vacuum degree and discharge pressure. | A plurality of closed volumes are formed between the meshing screws and the shell, and each closed volume is one level. When the transmission shaft drives the main screw to rotate clockwise, the closed volume at the left end gradually forms, and the volume increases to the oil suction chamber; the closed volume at the right end gradually disappears, and the volume decreases to the oil pressure chamber. | |
| Description | Material | Quantity |
| Pump cover | 304 /304L /316 /316L | 1 |
| Pump body | 304 /304L /316 /316L | 1 |
| Rotor | Rubber /304 /304L /316 /316L | 2 |
| Main shaft | 316-316L /42CrMo | 1 |
| Sub-shaft | 316-316L /42CrMo | 1 |
| Mechanical seal seat | 304 /304L /316 /316L | 2 |
| Mechanical seal | SIC /Tungsten carbide | 2 |
| O-ring | FKM /FFKM/ EPDM /TFE /PTFE,etc. | 1 |
| Rotor lock nut | 304 /304L /316 /316L | 2 |
| Lip seal | NBR /FKM | 3 |
| Working Principle of Lobe Pump |
| Technical parameters | |||||||
| Type | Capacity for tri-imepller rotor (L/r) |
Rotation speed (r/min) |
Flow (m3/h) |
Discharge Pressure (MPa) |
Standard I& O DN (mm) |
Enlarged I& O DN (mm) |
Weight Bare pump (kgs) |
| 15TLS12-0.5C | 0.04 | 10-720 | 2 | 1.2 | 15 | 25 | 30 |
| 25TLS12-2C | 0.15 | 10-720 | 5 | 1.2 | 25 | 40 | 40 |
| 40TLS12-5C | 0.32 | 10-500 | 10 | 1.2 | 40 | 50 | 50 |
| 50TLS12-10C | 0.65 | 10-500 | 15 | 1.2 | 50 | 65 | 80 |
| 60TLS12-15C | 1.1 | 10-500 | 20 | 1.2 | 65 | 80 | 120 |
| 65TLS12-20C | 1.74 | 10-500 | 30 | 1.2 | 65 | 80 | 200 |
| 75TLS12-30C | 2.6 | 10-500 | 40 | 1.2 | 80 | 100 | 230 |
| 80TLS12-40C | 3.65 | 10-500 | 60 | 1.2 | 100 | 125 | 260 |
| 100TLS12-60C | 5.2 | 10-500 | 80 | 1.2 | 125 | 150 | 400 |
| 125TLS12-80C | 6.8 | 10-500 | 120 | 1.2 | 125 | 150 | 450 |
| 140TLS12-120C | 9.8 | 10-400 | 150 | 1.2 | 150 | 200 | 600 |
| 150TLS12-150C | 12.8 | 10-400 | 200 | 1.2 | 150 | 200 | 680 |
| 200TLS12-200C | 16 | 10-300 | 300 | 1.2 | 200 | 250 | 780 |
| 250TLS12-300C | 20 | 10-300 | 400 | 1.2 | 250 | 300 | 900 |
| 300TLS12-400C | 30 | 10-300 | 500 | 1.2 | 300 | 350 | 1100 |
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