Dryer dedicated rotary joint in a balanced seal, the seal ring at both ends of the pressure generated is almost equal, thus effectively reducing the load on the sealing surface of the seal wear, stainless steel shaft mounted in South Korea imported polymer and silicon carbide seal ring friction ring seal, low friction, good sealing effect. Solve the stainless steel shaft and non-corrosive high-temperature problems. Reached world leading level. Hollow shaft and bearing interval lengthened, disassembly easier. And fast speed, stability, extended service life. Secondary seal with silicone rubber imported from Japan and fluorine rubber. Ensure that the seal does not soften at high temperatures. Graphite seal ring impregnated with high-density processed. Processed using special high temperature stainless steel spring. With strong stability, fast speed, long life, easy installation and so on. Suitable medium: water, air, steam, hot oil, liquid. (This product shelf life of 360 days).