Description
Sulzer Centrifugal Vertically suspended pumps VEY and VNY molten salt pump for concentrated solar power -State-of-the-art molten salt pump for concentrated solar power
Key Technical Specifications:
| 50 Hz | 60 Hz | |
| Pump bowls | Up to 914 mm | Up to 36 in |
| Capacities | Up to 4,000 m3/h | Up to 17,600 US gpm |
| Heads | up to 380 m | up to 1,250 ft |
| Pressures | up to 100 bar | up to 1,450 psi |
| Temperatures | up to 600°C | up to 1,100°F |
Why Choose Sulzer VEY and VNY?
Designed for the extreme demands of molten salt handling in concentrated solar power (CSP) plants , the Sulzer VEY and VNY pumps offer exceptional thermal resistance , mechanical integrity , and long-term reliability. These vertically suspended pumps are purpose-built to move high-temperature , corrosive molten salts used in energy storage and heat transfer , ensuring optimal plant efficiency and safety.
Key Technical Specifications
Pump Type: Vertically suspended molten salt pump
Configuration: VEY – radial impeller; VNY – mixed-flow impeller
Materials: High-temperature stainless steel , nickel-based alloys
Cooling System: Forced cooling jacket for bearings and seal area
Seal Arrangement: Double mechanical seal with buffer system (Plan 53 or 62)
Design Highlights
Optimized for molten salt at temperatures up to 600 °C
Long column design isolates critical components from hot zones
Tailored shaft and bearing system handles thermal growth and misalignment
Heavy-duty construction minimizes vibration and wear under thermal cycling
Typical Applications
Molten salt circulation and transfer in CSP thermal storage tanks
Solar tower receiver salt drainage and charging
High-temperature heat transfer systems in renewable energy plants
Backup and auxiliary molten salt loops in solar facilities
Additional Features
Reliable operation in 24/7 thermal cycling environments
Proven metallurgy resists corrosion and scaling from salts
Thermal barrier design protects shaft seals and bearings
Flexible shaft coupling system handles shaft elongation during heating
Sulzer’s VEY and VNY molten salt pumps bring robust performance to the heart of solar thermal plants. With decades of experience in thermal fluid handling , Sulzer delivers the reliability , efficiency , and safety needed to keep your CSP facility producing clean power—day and night.
