Structural characteristics of Dd/Dd-F type rotary joint:

Hollow shafts are connected to rollers or rolls through threads or flanges, serving as the main rotating component and moving synchronously with the equipment. The sealing ring, hollow shaft, and corrugated compensator together form a floating double end face with poor sealing performance. The sealing ring is made of impregnated carbon graphite, which has good self-lubricating properties, thereby reducing friction and wear and improving service life; After the wear of the sealing ring, it is compensated at any time by the corrugated compensator with the help of the pressure of the spring. The use of bearings not only provides support, but also improves rotational accuracy and reduces friction torque. In addition, there is an observation hole on the shell, through which the wear and sealing condition of the sealing ring can be observed at any time.

Dd/Dd-F type rotary joint usage parameters:
Maximum speed: 200r/min Maximum pressure: 1.6MPa.
Maximum temperature: 150 ℃ Applicable medium: hot water, low-pressure steam.

Dd/Dd-F type rotary joint