POLISHED ROD STUFFING BOX TECHNICAL FEATURES
1. The universal jonit structure of the stuffing box cooperates
with the centralizing&protecting bushing and have the
function of automatical adjustment. The polished rod
and the center of wellhead are in one line so that the
polished rod has little wear.
2. The centralizing and protecting bushing plays a role of
protecting the rod, also has the function of deviation
adjustment. Therefore, it is with better comprehensive
deviation adjustment.
3. The advantage of the packing part is that the packing
can be added generally. No need to take out the old
packing, thus making full use of the packings and
reducing the time, but with better sealing.
4. No need to drain the pipeline, the new packings can be
added. Below the pressure of 3Mpa, the packings can
not be ejected or leaked, due to the use of 4-8 maya
buckles.
5. It is with simple structure, low cost, convenient
installation and repair, but longer service time.
6. It is hard to disassemble the pin (guard against theft
part) of the below part, so it has good function against
theft.
