the application of multi-link pulley is generally when the communicationcable through the two wellhead operation, because the wellhead is belowthe cable wear up, the cable pipeline directly in contact with the wellheadwill cause wear and tear of the cable, this time coupled with the triplex ormulti-link pulley there is no such problem, this pulley has a triangular-shapedpulley bracket, triplex is three sets of pulleys connected to the first and last.The middle with a card nail fixed, three triplex pulley can be adjusted, and thenis based on the depth of the underground wellhead to choose to multi-link or
Triplex.