3-blade impeller SC-3
for agitatorsaxial-flow

3-blade impeller
3-blade impeller
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Characteristics

Configuration
3-blade
Applications
for agitators
Flow
axial-flow

Description

High efficient, low shear impeller with laser designed curved blades providing high strength and low weight which is ideal for long overhung shaft applications Deep tank mixing applications require long agitator shaft extensions, as well as lower rotational speeds to avoid critical speed problems. In the past, to develop the required flow in deep tanks, it was necessary to reduce the impeller speed and increase the impeller diameter to avoid critical speed problems. This technique added weight, as well as cost, and often pushed impeller-to-tank diameter ratios over 50%. When the impeller-to-tank diameter ratio exceeds 50%, a typical high efficiency impeller loses mixing effectiveness The Chemineer® SC-3 Impeller features an advanced design that produces flow characteristics of much larger impellers, without the added weight or the resulting loss in pumping efficiency. The highly efficient SC-3 Impeller’s reduced weight allows for the use of longer shaft extensions for deeper tanks, and resolves associated critical speed limitations. The use of an SC-3 Impeller can frequently produce significant agitator cost savings. Our laboratory LDA (Laser Doppler Anemometry) system was used extensively in the design of the SC-3 Impeller. Because large variations in discharge velocity can produce inefficiencies, significant efforts were made in the development of the SC-3 to maintain a relatively flat velocity profile. The discharge velocity profile is flatter than for most other high efficiency impellers under turbulent flow conditions.
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