Basic maintenance and upkeep of rotary joints

Rotating joint is an important sealing device for fluid transmission in equipment, both dynamic and static. Due to long-term operation of the equipment, the sealing components of the rotating joint may wear, damage, and leak. Therefore, it is particularly important to carry out necessary daily maintenance on the rotary joint.

Mainly start from the following aspects: the cleanliness of the rotating joint drum and the inside of the pipeline should be maintained. Special attention should be paid to new equipment, and filters must be added to avoid foreign objects causing abnormal wear on rotating joints. Due to long-term non use of the machine, scaling and rusting may occur inside the rotary joint. Please note that there may be jamming or dripping during reuse. For those with oil injection devices, please regularly oil to ensure the reliability of the rotary joint bearing operation. The rotary joint of the fluid medium should gradually warm up to avoid sudden temperature changes.

Check the wear condition and thickness change of the sealing surface of the sealing element (generally normal wear is 5-10mm); Observe the friction trajectory of the sealing surface to see if there are any issues such as three-point discontinuity or scratches. If there are any above mentioned conditions, they should be replaced immediately. Rotating joints should be handled with care, and impact is strictly prohibited to prevent damage to joint components. Foreign objects are strictly prohibited from entering the interior of the rotating joint. The fixing and stopping devices must not be loose or detached. Do not let the rotary joint idle for a long time.