Design rules for Fittings, Valves & Instruments

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Fittings, Valves & Instruments

  • Valve sizing: Cv = Q · √(SG / ΔP) (Q in USGPM, ΔP in psi)
  • Gauge range = 1.5–2 x operating pressure
  • Flange class from B16.5 P-T table

Products for this system

Pipe head loss calculatorProcess and utility piping

Products and services

Standards cited by number for reference; verify designs with a qualified engineer.