Two new modes of centralizers are thermosetting and movable. Movable type: It is connected by two parts with the same shape and convex inner wall, we can rely on lock teeth for fastening. Thermosetting: The centralizer is injection molded onto the sucker rod body. This can reduce the number of breaks in the sucker rod centralizer, and it is similar to the usual tubing breakage or the reduction in perforation accidents. The inspection period is prolonged. If you use nylon, its use may be better.

When we need high demands on its impact resistance and vibration resistance, we can also improve it, because the sucker rod centralizer reserves its room for upgrade in the early stage of design.

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