# Plastic Pipe Equations Formulas Design Calculator

Fluid Mechanics Hydraulics

AWWA C900 Pressure Class Pipe

Solving for surge pressure.

Note: surge pressure is based on a 2 foot/second instantaneous velocity change

## Inputs:

hydrostatic design stress (HDS)
dimension ratio for pipe outside diameter (SDR)
unitless
pressure rating or class (PC)

## Conversions:

hydrostatic design stress (HDS)
= 0
= 0
pound/inch^2
dimension ratio for pipe outside diameter (SDR)
= 0
= 0
pressure rating or class (PC)
= 0
= 0
pound/inch^2

## Solution:

surge pressure (Psurge)
= NOT CALCULATED

## Other Units:

Change Equation
Select to solve for a different unknown

outside diameter controlled pipe
 pressure class or pressure rating hydrostatic design stress dimension ratio for pipe outside diameter

inside diameter controlled pipe
 pressure class or pressure rating hydrostatic design stress dimension ratio for pipe inside diameter

AWWA C900 pressure class pipe
 pressure class or pressure rating hydrostatic design stress dimension ratio for pipe outside diameter surge pressure

short term pressure rating
 short term pressure rating short term strength or quick burst pressure safety factor

outside diameter controlled pipe
short term strength
 short term strength or quick burst pressure short term hoop strength outside dimension ratio

References - Books:
1) National Resources Conservation Service. National Engineering Handbook. 1995. United States Department of Agriculture.

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By Jimmy Raymond

Contact: aj@ajdesigner.com