The VPL3400 is designed specifically for molten salt transfer in concentrated solar power plants. Its true cantilever design, reliable sealing system and thermal growth tolerance make it ideal for this high-temperature application.
Custom Engineered Slurry Hydraulics ensure safe, reliable and efficient performance.
Heavy-duty Stainless Steel Construction is typically utilized to equalize thermal growth and resist distortion without an external cooling system. Alternative materials, including carbon steel and nickel-based alloys, are also available to suit service needs.
The Impeller is keyed to the pump shaft and secured using an impeller nut. Clearances are easily adjustable at the thrust bearing location. Repelling vanes reduce wear and recirculation.
Shafts are designed to operate approximately 30% below the first critical speed.
Shaft Sealing is accomplished via packing with a nitrogen purge to prevent fugitive emissions and reduce heat conduction.
Heavy-duty, Anti-friction Thrust and Radial Bearings are located above liquid level and accommodate all axial and radial loads without transmitting any loads to the driver.
Many Options are available to suit site requirements. These include:
- Inducer
- Suction tailpipe
- Basket-type screen
- Several driver types
Typical Operating Parameters (custom designs available for limits exceeding those listed)
- Flows to 4542 m3/h (20 000 gpm)
- Heads to 91 m (300 ft)
- Temperatures to 593°C (1100°F)
