Water Flow - Max. Delivery Velocities vs. Pipe Size
As a rule of thumb the following velocities can be used in design of piping and pumping systems for water:
| NPS | Max. Delivery Velocity | ||
|---|---|---|---|
| inches | mm | m/s | ft/s |
| 1 | 25 | 1 | 3.5 |
| 2 | 50 | 1.1 | 3.6 |
| 3 | 75 | 1.15 | 3.8 |
| 4 | 100 | 1.25 | 4 |
| 6 | 150 | 1.5 | 4.7 |
| 8 | 200 | 1.75 | 5.5 |
| 10 | 250 | 2 | 6.5 |
| 12 | 300 | 2.65 | 8.5 |
More about Water Systems, Pumps or Piping Systems.
Related Topics
• Fluid Flow and Pressure Loss in Pipes and Tubes
Fluid flow and pressure loss in pipe lines. Water and sewer systems. Steel pipes, pvc pipes, copper tubes and more.
• Piping Systems
Calculate dimensions of pipes and tubes. Pressure drop calculations and head loss charts. Use of different piping materials. Insulation of pipes and tubes and heat loss diagrams.
• Pumps
Design of pumping systems and pipelines. With centrifugal pumps, displacement pumps, cavitation, fluid viscosity, head and pressure, power consumption and more.
• Water Systems
Design of hot and cold water service and utility systems with properties, capacities, sizing of pipe lines and more.
Related Documents
Boiling Liquids - Max Pumping Flow Velocities
Recommended max flow velocity on the delivery (pressure) side when pumping boiling liquids.
Light Oil Pumping - Flow Velocities
Recommended max. flow velocities on the delivery side when pumping light oils.
Light Oil Suction - Flow Velocities
Recommended max. suction flow velocities when pumping light oils.
Pipe Line Velocities vs. Fluid
Typical fluid flow velocities for common liquids, gases and vapors.
Pipes - Fluid Flow Velocities
Calculate fluid velocity and volume flow in pipes and tubes.
PVC Pipes Schedule 80 - Friction Loss vs. Water Flow
Water flow in thermoplastic PVC and CPVC pipes Schedule 80 - friction loss (ft/100 ft, psi/100 ft) and flow velocities at dimensions ranging 1/2 to 16 inches.
Steel Pipes - Maximum Water Flow Capacities vs. Size
Maximum water flow capacities in steel pipes - pipe dimensions ranging 2 - 24 inches.
Steel Pipes Schedule 40 - Velocity Head vs. Water Flow
Velocity head can be used to calculate minor pressure or head loss in fluid flow systems.
Viscous Liquids - Max. Delivery Flow Velocities
Recommended max. flow velocities on delivery sides of pumps in viscous systems.
Water - Max. Suction Flow Velocities vs. Pipe Size
Recommended max. water flow velocities on suction sides of pumps.
Water Flow in Tubes - Reynolds Number
Reynolds number for clean cold water flow.
Water Systems - Maximum Flow Velocities
Water velocities in pipes and tubes should not exceed certain limits.