How much water can flow through a 4 inch pipe at 50 psi?

The flow rate of water through a 4-inch pipe at 50 psi can be estimated using the Hazen-Williams equation or similar hydraulic formulas. Generally, a 4-inch pipe can carry approximately 1,000 to 2,000 gallons per minute (GPM) under these conditions, depending on factors like the pipe's material, roughness, and the length of the pipe. For more precise calculations, specific hydraulic modeling or empirical data should be consulted.