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Viscous Liquids - Max. Delivery Flow Velocities

Recommended max. flow velocities on delivery sides of pumps in viscous systems.

As a rule of thumb - velocities that can be used in design of piping and pumping systems for viscous liquids:

Viscous Liquids - Max. Delivery Flow Velocities
Pipe DimensionDelivery Velocity
inchesmmm/sft/s
1 25 1 3.5
2 50 1.1 3.6
3 75 1.1 3.7
4 100 1.15 3.8
6 150 1.2 3.9
8 200 1.2 4
10 250 1.3 4.5
12 300 1.4 4.5
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