Thanks Ken!! I think both couplings and ******* are available. Either will suffice though.
One end regular thread direction, other end other direction. Allows you to join pipe without using a union.
I have never encountered LH threaded pipe!
I mentioned in an earlier post that my neighbor worked for the local gas utility. He had a section of pipe threaded for me left handed.
50 years plus as a plumber I was taught as an apprentice to never use a union in a gas line accept at the appliance after the shut off valve or at the gas meter. I never have. How would you change a union in a strait run if the pipe was anchored correctly behind a 12 x 12 access panel. Please show me the code that says it is OK.
It's not a union.
These are easy. If the 2 pieces, only one end of coupling and one end of ****** is left handed. So you couple the ****** into a normal right hand fitting, and then line up left right coupling and thread it on both pipes - the unique left hand ****** and a normal right hand pipe. It's very simple and works great when you want to insert something. I don't understand why they would be illegal - just threaded pipe connections.
Huh? Thye're always sold as a pair, with a L/R coupling and matching L/R ******.
Around here the L/R ******* are sold without couplings. They are used typically for cast iron rads. Because of this only big plumbing supply houses carry them. They do have their purpose, I don't think that gas service piping is one of them.
And I can't imagine you have to disassemble the gas piping in the whole house. I added a gas fireplace at front of house, and there were 5 gas appliances at rear of house. The left right was only practical option. It's the same materials and methods as any pipe fitting.
That’s takes some real determination.
I tested my partial run at 14psi overnight. It’s holding fine. Will test again after the l/r ****** is installed.The code book here doesn't care how difficult it is to complete a connection in existing piping. If this were an electrical issue there would be no option but to do the correct thing. You can use any fittings or a garden hose if you want but it's still illegal here in Ontario. Good luck with the project and please test for leaks.
So if you want to cut in a tee for a bbq or log lighter you may have to demo part of the house. I guess you could weld in a tee. I bet this is in the code when it applies to new construction because when you tighten fittings after the left and right it would back off the left portion. I bet on a remodel if you presented your situation to a building official they would let you use a left and right.The code book here doesn't care how difficult it is to complete a connection in existing piping. If this were an electrical issue there would be no option but to do the correct thing. You can use any fittings or a garden hose if you want but it's still illegal here in Ontario. Good luck with the project and please test for leaks.
Sometimes Laws and Codes are, in my opinion, stupidly wrong. Laws often are written by those who have their own interests at heart and passed by legislators who are ignorant.
