The GGMFO-III Multifunctional Polished Rod Sealer adopts a self-aligning sealing structure. Under reliable sealing conditions, it can move with the lateral displacement of the polished rod and automatically adjust to wellhead misalignment. This helps eliminate lateral support force, ensure uniform stress on the packing, reduce one-sided packing wear, and lower friction between the polished rod and the packing.

The product can extend packing service life, reduce the frequency of packing tightening and replacement, lower labor intensity, prevent crude oil leakage and environmental pollution, reduce production loss, and help decrease energy consumption of pumping wells.