Piping

How she'll the gas pressure requirements for an appliance

Appliance rating plate the appliance manufacturer

What type of tubing is it approved and available for installation on gas systems up to 5 psig

Flexible stainless steel tubing

There are three types of elastomeric composition hose for conducting propane and natural gas each of the following must comply with the blank blank blank blank

Standard can /c GA - 8.1

Mystery types of my piping materials that may be used in gas system piping

Steel copper plastic

All piping joints must be blank or be approved blank blank

Welded compression fittings

Hi plastic gas piping allowances be incorporated into the steel piping tables in the CSA b1 49.1 code and can accommodate plastic as well as steel pipe

Yes

Must all copper tubing joints and connections be brazed

Yes

Will all nominal pipe size have the same outside diameter

Yes

Is 7 inch water column 214 inch water column must be designed so that the pressure drop does not exceed blank water column

...

Natural gas piping systems with pressure is less than 7 inch water column must be designed so that the pressure drop does not exceed blank water column

0.5 inches water column

What is the maximum allowable pressure drop on a piping system that has natural gas supply pressure of 7 inch water column 214 inch water column

1 inch water column

What is the minimum pipe size that can be used for indoor application

1/2 inch diameter however 3/8 do not supply more than 15000 btu

If a pipe sizing table includes fittings a blank allowance has been included in the figures this allows is more than enough for a normal piping

20%

Reducing tees or bull headed tease that change flow direction how are they calculated

Are calculated by the largest in the size of the tee

What type of valve is used today

Ball type standard Elvis used today

Name the type of to that conforms with a TS MB 837

G tube

List of types of copper tube that may be used for above-ground gas

Gkl

What does ID stand for

Inside diameter

Name the tube that conforms to specifications 80s MB 88 covers type blank blank tube

K & L

What type of sitting maybe use with steel

Malleable iron steel

What happens if your piping is undersized

Maybe too low gas pressure at the appliance oversized piping inflates job cost and waste money pressure must be checked at the appliance

Can gas piping less than NPS 1/2 be concealed

No

Can any grade of Teflon tape be used

No only specific reason teflon tape are approved for use with natural gas and propane

What type of copper must have an approved corrosion resistant coating or covering

Only type K

What does OD stand for

Outside diameter

How is pressure drop

Pressure drop is defined as the working pressure at the meter installation downstream of the service regulators - working pressure at the appliance

Pipe sizing is an important consideration on a gas installation why

Property size piping or tubing helps to ensure the adequate supply pressure and volume of fuel is available at all appliance connections and that the manufacturer's specifications for inlet pressure and subsequently appliance firing rate can be met

Can CSST be tied directly to a gas meter with out your first ensuring that the meter assembly is independently supported since CSST would not lend the same level of support as an iron piping Ty

Psst must not be tied directly to the gas meter without your first ensuring that the meter assembly is independently supported then CSST would not find the same level of support as an iron piping tie

What kind of thread allows them to form a sealed went worked as the flanks of the threads compress against each other this contracts with parallel / straight thread fittings or compression fittings in which the threads nearly bald the pieces together and do not provide the seal

Taper

Gas piping utilizes a blank blank NPT and is cut out of a pipe threading machine or hand tool

Tapered thread

How does nominal pipe size effect the inside and outside diameter.

The outside diameter stays the same and the inside diameter changes as the wall thickness increases

How's the piping besides

To provide a supply of gas to meet the requirement of the volume pressure at the point of use

Because most appliances required gas at low pressure regulator is installed to reduce the pressure the high pressure regulators must be located where are they are accessible and you must make provisions to install a vent to the outdoors true or false

True

True or false gas system piping and tubing can be run parallel diagonal or at right angles to floor joist

True

True or false pipe dope and pipe tape are used to seal joints in piping systems they are applied only to the mail threads of pipes and fittings

True

Can pipe dope before into the pipe causing an obstruction to flow

Yes

Can three eighths inch diameter tubing be used for branch lines that are 24 5 feet or last in length and that do not supply more than

Yes

Easy important to design a system with as few fittings as possible

Yes

does all piping have to be

Yes