Newbie here

In the process of installing my compressors, tank, fittings etc...

My leader hose from the compressor can not reach the tank so I’m attempting to put a 3/4 female NPT-PTC on the leader hose check valve... then run the hose to the tank with a 3/4 PTC-NPT male.

The issue... it seems when I attempt to hand tighten the 3/4 female NPT fitting to the check valve it only gets a quarter turn. I’m afraid to use to use tools because I don’t want to damage the thread.

Should it screw down with a couple of turns before it gets hand right?

Are there different type NPT threads?