Yes, as well as for most other compressed process gasses.
No, not unless you push the manual release button (only on those valves that have a manual release button). In automatic mode, they will equalize only to the level of the reseal pressure. That is, a TA333-05-05-R breather valve will only equalize to within 0.5 psid because below that the valve will be closed.
Units are available with pressure ratings as high as 60 psig.
Yes. The outlets on most units are filtered nominally to 25 microns, but finer filters are also available upon request.
Yes. However, some fittings might require the use of special adapters.
Yes. By simply unscrewing the inlet end fitting, the old spent desiccant may be poured out and fresh, new desiccant poured in. AGM carries a full line of desiccant products and can supply replacement desiccant for pipeline dryers.
Drop-in cartridges are not available for these units at this time, but may become available in the future.