Elite Software SPIPE is Windows software for sizing domestic hot and cold water piping systems by modeling the pipe network, assigning fixtures, and applying sizing criteria such as maximum velocity and pressure loss per 100 feet of pipe. It converts fixtures to fixture units, uses the Hunter GPM Demand Curve to determine probable flow in each pipe, then selects the smallest pipe size meeting velocity and pressure drop limits. Outputs include per‑pipe flow, velocity, and pressure loss, total system pressure drop, required main pressure, and, like IMI Size, a bill of materials and cost estimates. Project data can be saved and reanalyzed to compare alternative layouts for optimized designs.

Key Features

Hunter‑based flow determination Probable demand from fixture units.

• Converts fixtures to fixture units and applies the Hunter GPM Demand Curve to each pipe section.
• Determines gpm flow per pipe to drive sizing decisions.

Code‑aligned sizing criteria Control velocity and pressure loss.

• Uses user‑set limits for maximum allowable water velocity and pressure drop per 100 ft.
• Selects the smallest pipe size that satisfies criteria across the network.

Comprehensive hydraulic outputs Transparent calculations.

• Reports pipe‑by‑pipe flow rate, velocity, and pressure loss.
• Provides total system pressure drop and required supply pressure at the main.

Materials and cost reporting Quantify and budget.

• Generates a bill of materials with cost estimates for domestic water piping.
• Facilitates procurement planning and value engineering.

Scenario analysis Optimize layouts.

• Stores project data to quickly evaluate alternative pipe network layouts.
• Supports iterative design to minimize material and pumping requirements.

Benefits

Accurate, standards‑based sizing Right‑sized piping with documented criteria.

• Hunter curve and fixture units reflect probabilistic peak demand.
• Velocity and pressure‑loss limits enforce good practice and comfort.

Time savings and consistency Streamlined calculations and documentation.

• Automated per‑pipe calculations reduce manual effort and errors.
• Repeatable reports support reviews and submissions.

Cost and material visibility Better budget control.

• BOM and cost estimates expose material impacts of design choices.
• Faster comparison of alternatives to reduce lifecycle costs.