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General Specifications for 
Piping
American National Standards Institute (ANSI) 
Recommendations for gas supply installations:
Connections:
■ This barbecue is designed to operate at 7 inches
of water column pressure (.2526 psi).
■ A manual shut-off valve must be installed
outdoors, immediately ahead of any connections 
or change in pipe material.
■ An additional manual shut-off valve indoors should
be installed in the branch fuel line in an accessible 
location near the supply line.
■ The point of tie into the branch line should be
carefully selected to avoid a drip leg or be 
downstream of a valve controlling another 
appliance.
■ Pipe compound should be used which is resistant
to action of natural gas when connections are 
made.
■ The outdoor connector must be firmly attached to
rigid, permanent construction.
Gas line piping
■ If the length of line required does not exceed 50
feet, use a 5/8" O.D. tube. One size larger should 
be used for lengths greater than 50 feet.
■ Indoor and above ground piping can be steel or
copper.
Steel
New standard weight (Schedule 40) steel pipe with 
malleable iron fittings.
Copper
New copper tubing type K or L. 
Copper tubing must meet requirements of ASTM B88
latest edition. 
Use flared fittings. Metallic ball sleeve compression
fittings must not be used. 
Copper tube joints may be soldered or brazed with
material having a melting point in excess of 1,000°F. 
Outside underground piping
Outside underground piping may be copper tubing, 
type K or L (ASTM B88) or polyethylene plastic tube 
PE3306 (Minimum wall thickness .062") meeting 
ASTM 2513, latest specifications.
Steel pipe is not recommended for underground use 
unless it is protected with an approved coating, 
insulated from hose piping and cathodically protected.
It is recommended that copper tubing be corrosion 
protected with a satisfactory material such as TC 
Mastic.
All buried fittings should be corrosion protected with a 
satisfactory material such as TC Mastic.
Underground piping must have a minimum of 10" 
cover.
Plastic tubing
Plastic tubing is suitable only for outside underground 
use.
■ The transition from metallic pipe to plastic pipe
should be made outside and at least 10" 
underground.
■ When compression or crimp type mechanical
joints are used with plastic pipe, it is advisable to 
use an internal rigid stiffener in conjunction with 
the fitting.
■ The stiffener should be assembled flush with the
end of the tube and extend at least to the outside 
edge of the compression fitting.
Testing connections
You will need a soap and water solution and a rag or 
brush to apply it.
All connections and joints must be thoroughly tested 
for leaks after gas has been turned into the line.
Notice Before Installation
Contact your local municipality for any building codes regulating outdoor barbecue installations. In
absence of local codes, you must conform to the latest edition of ANSI Z223.1.
WE RECOMMEND THAT THIS INSTALLATION BE DONE BY A PROFESSIONAL.
 DANGER
Do not use an open flame to check for 
gas leaks. Be sure there are no sparks 
or open flames in the area while you 
check for gas leaks. This will result in 
a fire or explosion which can cause 
serious bodily injury or death, and 
damage to property.
Wet the fitting with a soap and water solution. Any 
bubbles that form or grow indicate a leak. If bubbles 
occur shut off gas, tighten the fitting, and retest.
WARNING: If a leak persists after tightening the 
fitting, turn gas off at the supply. DO NOT 
OPERATE YOUR BARBECUE. Contact WeberStephen Customer Service.