I am installing a new gas range and the home depot person that came to install told me that I would need to replace the gas shut off valve behind the range before they install. They need a standard 1/2" thread on the shut off valve while the shut off valve that i have is 1/2 inch on the gas line side but has a flare end on the other side.
Now, the plumber is quoting $250 to just install the shut off valve. And I do not want to do it myself since it is gas. However, I have started to think whether I can circumvent the whole problem by putting a connector like this: http://www.midlandhardware.com/207955.html . The male flare can go into the flare end of the shut off valve and the other end can be a standard 1/2" thread.
The question is whether this is an OK situation or is not accepted to do this on a gas line.