Suction and discharge gas connections
For most suction and discharge gas connections there are
- one or more bushes resp. (for larger diameters) flanges
- one or more valves, consisting of a cast iron valve and the matching bush or flange
For the initial order, the compressors are delivered with the standard specified here (mostly bush / flange). If one of the options is desired, this must be specified when ordering - preferably by stating the designation in the header of the following tables. All bushes / flanges are suitable for A1, A2, A2L and A3 refrigerants as well as R717. For the shut-off valves there are special versions for R717.
When ordering spare parts at a later date, the bushes / flanges can be ordered individually. For the valves, it is often possible to choose between the assembly including bush / flange and the completion set without bush / flange. Details can be found in the chapters on the respective components (see below, also linked from the tables).
The valve with the same designation as the bush (e.g. D76L-3 1/8"-DN80 or DN125) contains the corresponding bush and therefore also fits the pipes listed here.