The through hole diameter is 16mm, suitable for the standard series of precision pneumatic slip rings with a diameter of <=16mm. 4 inlet 4 outlet air slip ring, G3/8" joint pipe diameters ranging from 10 to 12mm.
The media that can pass through are: compressed air, hydrogen, nitrogen, chemical mixed gases, steam, cooling water, hot water, hot oil, petroleum, sulfuric acid, beverages, etc.