Finding your way from gas to the exact model
The ANYI catalogue is organised by the gas the valve is built for. Here is the route from a gas you handle to a model designation you can quote.
The catalogue has three levels, and knowing which level you are on saves a lot of clicking. It goes: the gas, then a family of valves built for it, then the exact factory model. Only the third level carries the facts you can quote.
Three levels
Level 1 - the medium - Nine of them: oxygen and multi-gas, CO₂, nitrogen / argon / helium, hydrogen, acetylene, fuel gas / CNG, N₂O, chlorine and specialty gas. Start at /products and pick the one you handle.
Level 2 - the family - Inside a medium, families group valves of a similar form. A family page tells you how many exact models it holds. A family name is not orderable.
Level 3 - the exact model - This page carries the working pressure, the bore, the two connection designations and the safety device setting as the factory recorded them. This designation is what goes in an enquiry.
A worked route
A worked route, as a general example. You fill CO₂ cylinders. From /products you open the CO₂ medium, which lists its families and their models. You compare the models on working pressure and connections, find the ones whose connection designations match what your cylinders use, and open those pages. Each one shows what the factory recorded. You send the designations of the one or two that look right, with your own pressure and connections, and ask what needs confirming.
What the site will not decide for you
Two things the site deliberately does not do. It does not tell you which of the two recorded connections is the cylinder side - that is confirmed with the factory per model. And it does not offer an automatic "equivalent model" - models in one family are not automatically interchangeable, so a substitution is reviewed rather than generated.