Regulator Protection is Required by Code
Maxicaps help your regulators comply to national and international codes by protecting your regulators from physical damage, inclement weather, foreign debris, and insects. For specific code information, scroll to the information below.
International Fuel Gas Code
303.6 Outdoor Locations - "Appliances installed in outdoor locations shall be either listed for outdoor installation or provided with protection from outdoor environmental factors that influence the operability, durability, and safety of the appliances."
410.1 Pressure Regulators - "Pressure regulators shall be protected from physical damage."
413.6 Pressure Regulators - "Pressure regulators shall be designed, installed, or protected so their operation will not be affected by the elements (freezing rain, sleet, snow, ice, mud, or debris)."
Uniform Mechanical Code
902.15.3 Venting of Gas Appliance Pressure Regulators - "In the case of vents leading outdoors, means shall be employed to prevent water from entering this piping and also to prevent blockage of vents by insects and foreign matter."
D 113.4 Special Rules on Atmospherically Controlled Regulators - "Atmospherically controlled regulators shall be installed in such a manner that moisture cannot enter the regulator vent and accumulate above the diaphragm. Where the regulator vent is obstructed due to snow and icing conditions; shields, hoods, or other approved devices shall be provided to guard against closing of the vent opening."
NFPA 58 - Liquefied Petroleum Gas Code
126.96.36.199 - "All regulators for outdoor installations shall be designed, installed, or protected so their operation will not be affected by the elements (freezing rain, sleet, snow, ice, mud, or debris)."
Canadian Standards Association - CSA-B149
188.8.131.52 - "When installed outdoors and subject to inclement weather, the regulator shall be protected as necessary from exposure to weather conditions."
184.108.40.206b - " A single stage regulator of a capacity not exceeding 150000 Btuh (45 kW) may be installed in a horizontal position, provided that it is protected from inclement weather."
5.5.11 - "For propane applications, a regulator vent, line relief device, or hydrostatic relief device discharging vertically upward shall be provided with a loose-fitting rain cap. When discharging downward, it shall be provided with a protective screen."
220.127.116.11 - "Where outside meters and regulators are installed in locations that do not afford reasonable protection from damage, such protection shall be provided."
18.104.22.168 - "Regulators requiring vents for proper and effective operation...shall terminate in rain and insect resistant fittings."
ANSI Standard Z21.80
1.8.2 - "The orifice of a vent limiter shall be protected from foreign particles."