A400 Double Spiral Impeller
Recommended for ultra-high viscosity blending applications at low Reynolds numbers (Nre < 10)
Overview
The A400 Double Spiral Impeller is engineered for complete tank turnover and enhanced thermal performance. Its dual-blade configuration and close-clearance design make it ideal for jacketed vessels and applications requiring efficient mixing and heat transfer.
Key Features
- Dual-blade design:
- Inner blades pump downward
- Outer blades pump upward
- Creates full circulation and turnover of tank contents
- Close-clearance operation improves heat transfer in jacketed vessels
- Superior to open-style impellers like A200 (pitch blade turbine) and A320 (wide-bladed hydrofoil)
- Bolted construction available for tanks with small-diameter manways