Plastic Pipe - AWWA C900 Pressure Class:
Pressure Class or Pressure Rating:
Hydrostatic Design Stress:
Dimension Ratio for Pipe Inside Diameter:
Surge Pressure:
where,
PC = Pressure Class or Pressure Rating,
HDS = Hydrostatic Design Stress,
SDR = Dimension Ratio for Pipe Inside Diameter,
P_s = Surge Pressure.

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