Kitchen Gas Appliances - Gas Mains
Doityourself.com community forum was created to provide answers to all questions related to home improvement and home repair. Doityourself community can help you find information about how-to topics on small fixes to large remodeling projects. With comprehensive how-to content and expertly moderated community forums DoItYourself.com makes it easy to tackle even the most complex home improvement projects.View Full Version : Gas Mains
bruce_hyman
06-03-03, 02:14 PM
when the utility replaces a gas main, or installs a side leg to serve a new house, they manage to do the work without (usually) disrupting service. i know that the main is under only a few inches of pressure, but still, a lot of gas would escape; and the downstream homes would be gas-starved for at least several minutes; and the new line/main would be getting a mix of air and gas in the line until it was purged.. SO, how do they do it?
Sharp Advice
06-03-03, 04:12 PM
Hello: Bruce
Good question.
The simple answer is dual feed system.
The line in the street has about 30-35 pounds of pressure and is feed {supplied} from both sides. All gas mains are dual feed lines.
If the street supply pipe where not dual sided suppled, the problem you invision would result.
Good question.
The simple answer is dual feed system.
The line in the street has about 30-35 pounds of pressure and is feed {supplied} from both sides. All gas mains are dual feed lines.
If the street supply pipe where not dual sided suppled, the problem you invision would result.
bruce_hyman
06-04-03, 07:06 AM
great answer, and makes sense. it reminds me of British in-house electric distribution - complete loops back to the breaker panel, rather than our system of straight runs.