screw-in first stage regulators

[turneriver]

Hi
Is there a particular name for the type of 1st stage regulator that is not clamp-on, but is screwed in?

 

[simbrooks]

Din

 

[simbrooks]

The other is a yoke (A-clamp in UK and some other places) which clamps on.

 

[Spectre]

DIN. There's two types. 200 bar din has a shorter threaded part then the 300 bar, and therefore won't make a seal in a 300 bar DIN valve.. but a 300 bar DIN reg will fit in a 200 or a 300 bar DIN valve.