Support Spacing Pp Pipes
Reference data and engineering information about support spacing pp pipes for fluid mechanics applications.
Overview
Engineering reference data for Support Spacing Pp Pipes in fluid mechanics.
Key Formulas
Reynolds Number
Ratio of inertial to viscous forces — determines flow regime.
Bernoulli's Equation
Conservation of energy for steady, inviscid, incompressible flow.
Continuity Equation
Conservation of mass for incompressible flow.
Darcy-Weisbach
Pressure drop due to friction in a pipe.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Reynolds number | — | |
| Fluid density | kg/m³ | |
| Flow velocity | m/s | |
| Characteristic dimension | m | |
| Dynamic viscosity | Pa·s | |
| Pressure | Pa | |
| Darcy friction factor | — |
Support Spacing Data
The maximum spacing between supports for Polypropylene (PP) pipes decreases as the operating temperature increases. This is due to the material's reduced strength and increased flexibility at higher temperatures. The data below is for horizontal pipes carrying fluids.
NPS (inches) | 60°F(feet) | 100°F(feet) | 140°F(feet) | 180°F(feet) |
|---|---|---|---|---|
| 1/2 | 1.5 | 1.5 | 1.5 | 1 |
| 3/4 | 2 | 2 | 1.5 | 1.5 |
| 1 | 2 | 2 | 2 | 1.5 |
| 1 1/4 | 2.5 | 2 | 2 | 2 |
| 1 1/2 | 2.5 | 2.5 | 2 | 2 |
| 2 | 3 | 2.5 | 2.5 | 2 |
| 3 | 3.5 | 2.5 | 3 | 2.5 |
Source: engineeringtoolbox.com
NPS (inches) | 60°F(feet) | 100°F(feet) | 140°F(feet) | 180°F(feet) |
|---|---|---|---|---|
| 1/2 | 2 | 2 | 2 | 1.5 |
| 3/4 | 2.5 | 2.5 | 2 | 2 |
| 1 | 2.5 | 2.5 | 2 | 2 |
| 1 1/4 | 3 | 2.5 | 2.5 | 2.5 |
| 1 1/2 | 3 | 3 | 2.5 | 2.5 |
| 2 | 3.5 | 3 | 3 | 2.5 |
| 3 | 4 | 4 | 3.5 | 3.5 |
Source: engineeringtoolbox.com
Unit Conversion Formulas
These formulas allow for conversion between common imperial and metric units used in piping engineering.
Material Properties
Polypropylene (PP) is a thermoplastic polymer valued for its:
- Chemical Resistance: Unusually resistant to a wide range of chemical solvents, bases, and acids.
- Application Versatility: Used in a wide variety of industrial, commercial, and residential applications.