1. Engineered suction design for optimized submergence

2. First-stage impeller:

Inducer or high suction specific speed (Nss) impeller for reduced NPSHR

3. Engineered bearing bushings

Better shaft alignment and adaptation to the thermal expansion

4. Main shaft sealing by throttle bushing

Permanent leak-off recirculation to the molten salt tank

5. Auxiliary shaft sealing deflector

Prevents leakage of molten salt to the atmosphere

6. Shaft fans/radiators and efficient thermal barrier

• Reduces temperature, protects and increases lifetime of the pump bearings
• Heat barrier between hot/cold sections

7. Muff coupling

To ease dismantling

8. Special design to allow thermal expansions

• Extended wear ring zone
• Clearances calculated considering all the relative expansions