District Regulator Sizing Calculator

Per AGA Guidelines & 49 CFR 192

District Regulator Sizing Calculator
Sizes district regulators for intermediate pressure reduction in gas distribution systems. Calculates peak flow rate, required Cv, regulator size, relief valve capacity, noise prediction, lockup pressure, and droop.

Pressure Conditions

psig
psig
Low pressure: 0.25 psig (7 in WC) typical

Load & Demand

BTU/hr
Total connected appliance load
-
Fraction of connected load at peak (0.3-0.8)

Gas Properties

-
°F

Standards & References

  • AGA
    District Regulator Design Guidelines
  • 49 CFR 192
    Pipeline Safety Regulations
  • ISA 75.01
    Control Valve Sizing Equations