If you are looking to replace your air cooled tig torch 17 style torch, you need to know a few things so that you can make a good decision on the best torch for the type of jobs you do.
The letters and numbers added to "TIG torch 17" mean something.
for example, an F after 17 usually indicates flex head...and a V usually indicates the torch has a valve.
So a 17fv indicates a 17 torch with both a flex head and a valve.
It's important to know these details when ordering a tig torch.
A valve on a tig torch is primarily for scratch start or lift arc tig welding where the machine does not have a solenoid valve inside the machine that controls argon flow.
Valve tig torches can be used with any tig welding machine but the valve is not necessary with a machine that has a solenoid and foot pedal or torch amp control...and the valve just might just get in your way if you don't need it.
A 17 style air cooled tig torch is rated at 150 amps but can weld at higher amps for brief periods.
You will know when you push a 17 tig torch too hard because it will get too hot to hold.
A 26 style tig torch is rated at 200 amps.
CK makes a trimline 26 tig torch that is pretty much the same size as a tig torch 17 style but can weld at 200 amps for extended periods.
Using a trimline 26 from CK helps you get the most out of your 200 amp tig welder.