Recommended Delivery Flow Velocity of Viscous Liquids

[Esam]

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

Pipe Dimension		Viscous Liquids
inches	mm	m/s	ft/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

[sirlocomurdock]

sir,
thanks for the information. I want to know in which book did you find that information.
Regards

[duazo2009]

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

Pipe Dimension		Viscous Liquids
inches	mm	m/s	ft/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

Viscous liquids means to what "Reynolds number range" it applies.

Cheers,

duazo2009