maintenance-free welding rotary compensator

Maintenance-free welding rotary compensators and rotary compensators are sealed by flexible packing in the packing chamber. The filler will wear a little every time the product is rotated during use, and when the amount of wear reaches a certain value, the product will leak. The maintenance-free rotary compensator adds a set of springs above the packing compression flange, and when the packing has a slight amount of wear, it relies on the tension of the compression spring to compensate, thereby prolonging the leakage time of the product (the leakage time is delayed by 3-5 years). When the amount of wear exceeds the amount of spring tension compensation, only need to tighten the nut above the spring pressing flange, no need to stop the gas repair, there is no limit to the number of operations, and it is not easy to produce leakage, thereby greatly improving the social and economic benefits of the gas supply unit and the gas consumption unit. The product compensates 5000 times under a pressure of 4.0Mpa without leakage, and the sealing effect is superior.