Certificate of Fitness - G23 - Using
LPG Questions with Verified Answers
Control Valve - ANSWERSLPG is released from container by opening control valve.
Control valve must be opened by hand. Valve should be opened carefully to make sure
that the valve is not damaged. The control valve is opened by turning the valve two full
revolutions in a counter-clockwise direction. The valve must never be forced open by
using a wrench. The valve must not be forced past the fully open position since that
might damage the valve.
Pressure Relief Valve - ANSWERSOpens to allow the LPG to escape into the
atmosphere when the pressure is too great in the container. This is a safety mechanism
to prevent an explosion caused by the pressure build up in the container. The relief
valve or its discharge system must be designed to minimize the possibility of the
entrance of water or dirt. If you hear or observe any gas leak from the pressure relief
valve, call 911 immediately.
Regulator - ANSWERSThe regulator must be installed before any LPG container is
used to fuel any appliance. The regulator is one of the most important parts of a LPG
system. It controls the flow of gas and lowers the pressure from the container to the
appliance. The regulator not only acts as a control regarding the flow and distribution of
LPG but also as a safety barrier between the high pressure of the container and the end
use appliance.
Always select regulators recommended by manufacturer. do not interchange regulators
between different sizes/types of LPG container without consulting the manufacturer. Do
not open the container valve or regulator tap until the regulator is securely attached.
The regulator controls the discharge rate of LPG from the container. The discharge rate
of the regulator is factory set and should never be adjusted.
Typical Regulator - ANSWERSThreaded into the control valve at the top of the LPG
container. These connections have left-handed threads. They are tightened by turning
the assembly counter-clockwise. Some connections may be tightened by hand only.
Other connections must be tightened with a wrench.
A rubber slip connection is prohibited in LPG containers. Flexible nonmetallic hose may
be allowed at some applications (e.g. construction sites, emergency indoor repairs,
manhole operations, etc.) However, the length of the hose must not exceed 30 ft when
the activity is performed outdoors or not exceed 6 feet if the activity is performed
indoors. The nonmetallic hose also must be DOT approved hoses designed for a
working pressure of not less than 250 psi when the activity is being performed outdoors
or 350 psi when it is being performed indoors.
LPG Questions with Verified Answers
Control Valve - ANSWERSLPG is released from container by opening control valve.
Control valve must be opened by hand. Valve should be opened carefully to make sure
that the valve is not damaged. The control valve is opened by turning the valve two full
revolutions in a counter-clockwise direction. The valve must never be forced open by
using a wrench. The valve must not be forced past the fully open position since that
might damage the valve.
Pressure Relief Valve - ANSWERSOpens to allow the LPG to escape into the
atmosphere when the pressure is too great in the container. This is a safety mechanism
to prevent an explosion caused by the pressure build up in the container. The relief
valve or its discharge system must be designed to minimize the possibility of the
entrance of water or dirt. If you hear or observe any gas leak from the pressure relief
valve, call 911 immediately.
Regulator - ANSWERSThe regulator must be installed before any LPG container is
used to fuel any appliance. The regulator is one of the most important parts of a LPG
system. It controls the flow of gas and lowers the pressure from the container to the
appliance. The regulator not only acts as a control regarding the flow and distribution of
LPG but also as a safety barrier between the high pressure of the container and the end
use appliance.
Always select regulators recommended by manufacturer. do not interchange regulators
between different sizes/types of LPG container without consulting the manufacturer. Do
not open the container valve or regulator tap until the regulator is securely attached.
The regulator controls the discharge rate of LPG from the container. The discharge rate
of the regulator is factory set and should never be adjusted.
Typical Regulator - ANSWERSThreaded into the control valve at the top of the LPG
container. These connections have left-handed threads. They are tightened by turning
the assembly counter-clockwise. Some connections may be tightened by hand only.
Other connections must be tightened with a wrench.
A rubber slip connection is prohibited in LPG containers. Flexible nonmetallic hose may
be allowed at some applications (e.g. construction sites, emergency indoor repairs,
manhole operations, etc.) However, the length of the hose must not exceed 30 ft when
the activity is performed outdoors or not exceed 6 feet if the activity is performed
indoors. The nonmetallic hose also must be DOT approved hoses designed for a
working pressure of not less than 250 psi when the activity is being performed outdoors
or 350 psi when it is being performed indoors.
