Centrifugal
Each series within the Allweiler® centrifugal pump line is designed for specific application requirements able to handle a wide range of low viscosity aggressive and non-aggressive fluids.
The centrifugal pump method of operation is typically a single-flow‚ single-stage‚ volute pump available with a shaft seal or magnetically-coupled pump without a shaft seal. In a centrifugal pump‚ the process liquid enters through the suction nozzle and then the center of pump known as the impeller. As the impeller rotates‚ it spins the liquid sitting in the cavities between the vanes outward. As the liquid leaves the eye of the impeller a low-pressure area is created causing more liquid to flow toward the inlet. The faster or bigger the impeller‚ the higher the velocity of the liquid at the vane tip and the greater the energy imparted to the liquid.
Strengths of the technology:
- Dynamically balanced impeller reduces vibration
- Mechanical seals‚ including cartridge units‚ and materials that are adapted for service conditions
- Pump and motor are rigidly coupled
- Negligible axial thrust and good NPSH values
Typical power generation process fluid-handling:
- Waste Water Treatment
- Chemical Metering
- Fuel Unloading / Transfer / Forwarding
- Lubrication
- Washing System
| Flow Rates up to | Pressures to up to | Max Fluid Temperature | CIRCOR Brand‚ Series & Pump Type |
| 105 m^3/h 462 GPM | 25 bar 363 psi | 250C 482F | Allweiler AllMAG Centrifugal |
| 120 m^3/h 528 GPM | 25 bar 363 psi | 160C 320F | Allweiler L/LV Centrifugal |
| 240 m^3/h 1‚058 GPM | 25 bar 363 psi | 160C 320F | Allweiler ALLCHEM Centrifugal |
| 480 m^3/h 2‚120 GPM | 16 bar 232 spi | 140C 284F | Allweiler NB Centrifugal |
| 550 m^3/h 2,500 GPM | 16 bar 232 spi | 120C 240F | Allweiler NSSV Centrifugal |
| 1,200 m^3/h 5,300 GPM | 25 bar 363 psi | 350C 662F | Allweiler CNH-B Centrifugal |
| 2,300 m^3/h 10,158 GPM | 16 bar 232 spi | 140C 284F | Allweiler NT Centrifugal |