| 摘要 |
The present invention relates to a split seal for a progressive cavity pum p (PCP) drive head stuffing box. In one embodiment, a mechanical seal assembly for a pump is provided. The mechanical seal assembly includes a seal housing; firs t and second semi-annular mechanical seals, each at least partially disposed in th e seal housing bore, and a seal sleeve rotatable relative to the seal housing; thir d and fourth semi-annular mechanical seals, each disposed at least partially in the seal sleeve bore, at least one of the third and fourth seals rotationally coupled to the seal sleeve; and one or more biasing members biasing the mechanical seals into engagement.</SDOAB > |
