Gas Pipes and Piping Material
Knowing the type of piping your gas system is made of can be very important. If you have a gas leak is not the time to learn about your gas system. A gas leak can be costly and very dangerous at the same time. Natural gas leaks kill people here in the North Texas area each year. One person lost from a leaking gas service is one to many.
Steel Pipe Gas Systems
All homes are not piped with black iron pipe anymore. Black iron or steel pipe gas systems are the Cadillac gas services for homes. The only problem is they are labor intensive to install and take a skilled plumber a lot of time installing gas pipe. The benefits are they are more resistant to lightning strikes. You can not run a nail through the pipe with a nail gun or hammer. You are not going to step on the pipe and crush it. It is a very hardy piping and holds up well in just about every condition.
CSST Pipe Gas Systems
CSST stands for Corrugated Stainless Steel it to has its good points. It is easy to install and installs faster than steel pipe. That sounds great and does have its applications. There are problems as with any system to. The pipe can be stepped on in an attic and crush. A roofer can run a nail through the piping if not installed properly. ( We get calls on this on almost a daily basis.) The systems usually are ran at a higher PSI of around 2 1/2 pounds of pressure. I know this does not sound like a lot but consider this is 5 times the normal pressure for a gas service in a residents. The average residential system operates at 0.5 or 1/2 pound of pressure. This is considered to be a high to medium pressure system. The manufacture also recommends the service be bonded with an electrical ground to prevent pin holing if you have a near lightning strike. This is not a direct strike this could be as far away as across the street. The system like all systems have there applications. Some environments are more corrosive than others and this piping installed correctly can be the answer. The other issue is each brand of piping is proprietary which means you can not mix products it is dangerous to do so. The manufactures require a certification to buy the piping to protect the public. Some of the manufactures are listed below.
TracPipe Omega Flex
Poly Pipe Gas Service
HDPE or High Density Polyethylene better known as poly pipe is used primarily underground. This is used because poly will not corrode. This is the corrosion protection needed and required by code. The bad thing about poly pipe it can be cut with a shovel. This is another call we receive daily that the homeowner or a contractor was digging and cut our gas line. You can not use steel piping underground unless it is coated and has corrosion protection. Poly piping is usually and should always be accompanied by a tracer wire. This wire is there so the gas line can be located before you did and the location marked. The utilities must be located before you dig and it is a FREE service. All you have to do is call 1800 DIGTESS. They will notify the local utilities.
Gas Pipe Risers
This is what you connect to poly piping coming out of the ground. The riser is made of steel and has a protective coating around the steel. Again any piping in the ground has to have some form of corrosion protection. This is the whole ideal when dealing with gas systems protection and safety. If you have additional questions concerning a gas service in the North Texas area give us a call.
Gas Flex Lines
A gas flex line is what is used to connect your gas appliance, water heater, stove, furnace, ect to the gas piping service in your home. Gas flex lines are a one time use connector. This means when you replace the appliance you replace the flex line. These flex lines are made of corrugated stainless steel. There is a limit to how long of a flex line you can use on an appliance. Usually 2 or 3 ft is the limit. You are not allowed to run a flex line through a wall or cabinet. Flex lines also carry a maximum BTU rating. This is determined by size of the flex line and the length. Always check your BTU rating on flex lines and make sure they match you appliance and please do not connect 2 or more flex lines together this is dangerous to.
Other types of Gas Piping
Some other types of gas piping are copper, stainless steel pipe and galvanized pipe. Copper can only be used if have .03% of an odorant in the gas. This odorant is what makes the rotten egg smell that you smell when you have a gas leak. The chemical used here in Texas is corrosive to copper. For this reason you could not use copper in gas delivery piping in the past. The other piping mentioned also has issues and we won’t get into them here. So for the most part we see black iron, poly, CSST piping. We hope this helps if you have questions give us a call.