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About This Item


Full Description

This standard applies to the minimum design, material, performance and testing requirements of 1 ¿ inches (32 mm) and smaller self-operated diaphragm-type natural gas service regulators operating at inlet pressures up to 125 psig (861.8 kPa). 


Document History

  1. AGA X62104


    B109.4 Standard, Self-Operated Diaphragm-Type Natural Gas Service Regulators For Nominal Pipe Size 1-1/4 Inches (32 mm) and Small With Outlet Pressures of 2 psi (13.8 kPa) and Less (ANSI B109.4-2021)

    • Most Recent
  2. AGA XM1602

    Self-Operated Diaphragm-Type Natural Gas Service Regulators: For Nominal Pipe Size 1 1/4 Inches (32MM) and Smaller With Outlet Pressures Of 2 PSI (13.8 KPA) and Less (ANSI B109.4)

    • Historical Version
  3. AGA XQ9802

    ANSI B109.4-1998 (R2008) for Self-Operated Diaphragm Type Natural Gas Service Regulators

    • Historical Version