Going to connect a 2" galvanized pipe to a 2" PVC pipe. Its above ground in my basement. I'm trying to get a firm understanding of the different types of connectors. I get that Name brands like Fernco and Mission used to mean certain models but they are really Brand names and both have all different types of couplings.
Please let me know if this is the correct way of looking at the different types. There are shielded and un-shielded couplings.
Un-shielded are sometimes referred to flexible but are pieced of rubber with a single metal strap at both ends to tighten. Basically these are not used anymore. But some location they are used underground outside?
Then there are shielded
No Hub shielded is for Cast iron to cast iron. It can have 2 to 4 tightening bands and the metal shielding is a corrugated looking piece of metal.
Then there is the shield with a solid metal shielding. This is not referred to as no hub and can be used for connecting cast iron to different materials?
If I'm correct why can't I use a no hub /corrugated shielded for galvanized to PVC. What exactly makes it only for CI to CI. The no hub is $3.50 and the solid shielding Proflex is $9. The money is not an issue as its my personal home and I have no problem spending extra money to do it right. I just really want to understand the difference in the two and why I should use one vs the other.
I've included pics of the two I'm talking about in my examples
Please let me know if this is the correct way of looking at the different types. There are shielded and un-shielded couplings.
Un-shielded are sometimes referred to flexible but are pieced of rubber with a single metal strap at both ends to tighten. Basically these are not used anymore. But some location they are used underground outside?
Then there are shielded
No Hub shielded is for Cast iron to cast iron. It can have 2 to 4 tightening bands and the metal shielding is a corrugated looking piece of metal.
Then there is the shield with a solid metal shielding. This is not referred to as no hub and can be used for connecting cast iron to different materials?
If I'm correct why can't I use a no hub /corrugated shielded for galvanized to PVC. What exactly makes it only for CI to CI. The no hub is $3.50 and the solid shielding Proflex is $9. The money is not an issue as its my personal home and I have no problem spending extra money to do it right. I just really want to understand the difference in the two and why I should use one vs the other.
I've included pics of the two I'm talking about in my examples
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