
When the tubing size is specified, the tubing pump can provide the maximum pump diameter. Compared with the rod pump, the running depth of tubing pump is deeper and the displacement is greater in the well with same tubing size. In addition, through the selection of fittings materials, various heat treatment processes and surface treatment processes, the requirements of well conditions for product strength, corrosion resistance and wear resistance can be met.
Structure of pump
The main spare parts of subsurface sucker rod pumps are barrel, plunger and valve.
Pump Specification | Pump Bore(in) | Length of Plunger | Range of Stroke(mm) | Pump Constant(m3/d) | Size of matched tubing(in) | Size of connecting Sucker Rod(mm) | Length of extension Coupling |
25-125 | 1.250 | 600-1200 | 600-12000 | 1.140 | 2-1/2 2-7/8 | 16 | 300-900
|
25-150 | 1.500 | 1.642 | 2-1/2 2-7/8 | 16 | |||
25-175 20-175 | 1.750 | 2.235 | 2-1/2 2-7/8 | 16 | |||
25-225 | 2.250 | 3.694 | 2-7/8 | 19 | |||
25-275 | 2.750 | 5.518 | 2-7/8 | 22 | |||
30-275 | 2.750 | 5.518 | 3-1/2 | 22 | |||
30-325 | 3.250 | 7.707 | 3-1/2 | 22 | |||
30-375 | 3.750 | 10.261 | 3-1/2 | 25 | |||
40-375 | 3.750 | 10.261 | 4 | 25 | |||
50-475 | 4.75 | 16.75 | 5-1/2 | 28.57 |

















Yes,we have our own factory for manufacturing and we have the long history in this field as the China top brand.
2.Can you provide free sample?
Yes, we can provide samples in our stock for free, customer just need to bear the shipping fee.
3. Hhow about the quality guarantee ?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
4.what can you buy from us?
OCTG / Pumping Unit / Sucker Rod Pump / Wellhead and Christmas Tree / Casing and Coupling /Pup joint/Crossover/Centralizer