Piping Materials Cost Ratios

Overview

Engineering reference data for Piping Materials Cost Ratios in economics.

Key Formulas

Present Value

$PV = \frac{FV}{(1+r)^n}$

Discount a future value to present.

Net Present Value

$NPV = \sum_{t=0}^{n} \frac{C_t}{(1+r)^t}$

Sum of discounted cash flows.

Compound Interest

$FV = PV(1+r)^n$

Future value with compound interest.

Variables

Material Abbreviations

The following abbreviations are used throughout this document for common piping materials:

• PTFE — PolyTetraFluoroEthylene
• FRP — fibreglass (Fibre-Reinforced Plastic)
• PVDF — PolyVinyliDene Fluoride
• FEP — Fluorinated Ethylene Propylene

Cost Ratio Basis

The installed cost ratios are based on a standardized installation for comparison. The reference installation is:

• Pipe Length: 100 m (400 ft)
• Pipe Size: DN 50 (2" nominal diameter)
• Reference Material: Carbon Steel is assigned a cost ratio of 1.00. All other material costs are expressed as a multiplier relative to this baseline.

References

• Original Source