HDPE Pipe Sizing Calculator

Determine the ideal HDPE pipe size for your system based on flow rate, pressure drop, pipe length, and other parameters. This calculator helps you choose the right size for optimal performance and efficiency in HDPE pipe systems.

Gallons per minute (GPM)
Pressure drop in pounds per square inch
Length of the HDPE pipe

Understanding HDPE Pipe Sizing

Choosing the correct HDPE pipe size is crucial for efficient fluid transport, minimizing pressure drop, and maximizing flow rate. This calculator helps you determine the ideal pipe size based on the key parameters of your system.

Key Factors in HDPE Pipe Sizing

The following factors influence the sizing of HDPE pipes:

Factor Description Impact on Pipe Size
Flow Rate (GPM) The amount of fluid to be transported Higher flow rates require larger pipes to reduce pressure drop and maintain efficiency
Pressure Drop (psi) The pressure loss caused by friction in the pipe Larger pipes reduce pressure drop and maintain the required flow rate
Pipe Length (ft) The total length of the HDPE pipe Longer pipes increase the pressure drop and may require a larger pipe size to compensate

Formula for HDPE Pipe Sizing

The formula to calculate HDPE pipe size is based on the flow rate and pressure drop:

Pipe Diameter (inches) = √((Flow Rate × Factor) / (Pressure Drop × π))

Where:

  • Flow Rate: Flow rate in gallons per minute (GPM)
  • Pressure Drop: Pressure drop in pounds per square inch (psi)
  • Factor: A constant that depends on the type of fluid and material of the pipe (HDPE = 0.02)
  • π: Pi, approximately 3.1416

Common Applications

Application Typical Pipe Size Range Flow Rate Range (GPM)
Water Distribution 1" - 12" 50-5000 GPM
Agricultural Irrigation 2" - 10" 100-3000 GPM
Industrial Systems 3" - 24" 500-10000 GPM
Fire Protection 2" - 10" 50-2000 GPM

Frequently Asked Questions

What is HDPE pipe?

HDPE (High-Density Polyethylene) is a flexible, durable plastic pipe commonly used in water distribution systems, irrigation, and other fluid transport systems. It is resistant to corrosion and abrasion.

How does pipe length affect the pipe size?

Longer pipes increase the pressure drop due to friction. To maintain the desired flow rate, a larger pipe may be needed for longer runs.

Can I use this calculator for other pipe materials?

This calculator is specifically for HDPE pipes. For other materials, modifications to the constant factor would be required based on the pipe material's characteristics.

Why is the pressure drop important for pipe sizing?

Pressure drop is crucial because it affects the performance of the system. A larger pipe reduces the pressure drop, ensuring that the system operates efficiently over longer distances.