The
subsurface
sucker
rod
pumps
are
manufactured
in
accordance
with
API
11AX,
and
have
been
API
monogrammed
and
ISO
9001
licensed.Technology
was
introduced
from
USA
in
1980'
s.More
than
40
models
and
sizes
of
sucker
rod
pumps
are
available
with
the
diameter
ranging
from
28
mm
to
108
mm
Sucker Rod pump is also known as insert rod pump, it is one type of the conventional sucker rod pumps. The rod pump is connected to the sucker rod directly; it can be pulled out with sucker rod and does not influence the tubing, so the well inspection and work over is more convenient. It can save half times and reduce cost of the pumping test, thus the rod pump is suitable for the deeper well.